From owner-freebsd-net@FreeBSD.ORG Sun Oct 28 13:44:52 2007
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Date: Sun, 28 Oct 2007 14:17:38 +0100
From: "=?ISO-8859-1?Q?Ermal_Lu=E7i?=" <ermal.luci@gmail.com>
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Subject: [PATCH] PF+dummynet
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Attached is the patch against -CURRENT for integrating PF with dummynet!
It gives full dummynet support in pf.conf syntax and removes dummynet
depndency to ipfw.
You can configure a pipe/queue using the same ipfw syntax the only
difference is that i call those 'dnpipe'/'dnqueue' respectivley.
GRED/RED isn't currently finished but that is a pfctl addition so not
difficult.
For dummynet i preserve ipfw style statistics so tools of ipfw can be
used here to.
Since this is PF i preserved ALTQ priotitizing of ACK, meaning on ALTQ you do
pass in quick proto tcp from any to any flags S/SA queue(pri, que)
You can do the same with dummynet queues only, since for pipes it
doesn't make much sense since they simulate a link. So yuo can do
dnpipe 10 bandwidth 100Kbit
dnqueue 10 dnpipe 10 queue 100
dnqueue 20 dnpipe 10 queue 20
pass in quick proto tcp from any to any flags S/SA dnqueue(10, 20)
Please test and give feedback.
------=_Part_13721_18234194.1193577458248--
From owner-freebsd-net@FreeBSD.ORG Sun Oct 28 17:13:16 2007
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Date: Sun, 28 Oct 2007 18:13:13 +0100
From: "=?ISO-8859-1?Q?Ermal_Lu=E7i?=" <ermal.luci@gmail.com>
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Cc:
Subject: Fwd: [PATCH] PF+dummynet
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I am sending this again since it seems the list ripps off files other
than text files.
>
> > It gives full dummynet support in pf.conf syntax and removes dummynet
> > depndency to ipfw.
> >
> > You can configure a pipe/queue using the same ipfw syntax the only
> > difference is that i call those 'dnpipe'/'dnqueue' respectivley.
> > GRED/RED isn't currently finished but that is a pfctl addition so not
> > difficult.
> >
> > For dummynet i preserve ipfw style statistics so tools of ipfw can be
> > used here to.
> >
> > Since this is PF i preserved ALTQ priotitizing of ACK, meaning on ALTQ you do
> > pass in quick proto tcp from any to any flags S/SA queue(pri, que)
> >
> > You can do the same with dummynet queues only, since for pipes it
> > doesn't make much sense since they simulate a link. So yuo can do
> >
> > dnpipe 10 bandwidth 100Kbit
> > dnqueue 10 dnpipe 10 queue 100
> > dnqueue 20 dnpipe 10 queue 20
> >
> > pass in quick proto tcp from any to any flags S/SA dnqueue(10, 20)
> >
> >
> > Please test and give feedback.
>
> > _______________________________________________
> > freebsd-net@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-net
> > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
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From: "=?ISO-8859-1?Q?Ermal_Lu=E7i?=" <ermal.luci@gmail.com>
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Subject: Fwd: [PATCH] PF+dummynet
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Ok thanks to remko@ for hosting it!
You can find it here:
http://people.freebsd.org/~remko/patches/dummynet_pf.tar.gz
Please test and give feedback.
>
> > It gives full dummynet support in pf.conf syntax and removes dummynet
> > depndency to ipfw.
> >
> > You can configure a pipe/queue using the same ipfw syntax the only
> > difference is that i call those 'dnpipe'/'dnqueue' respectivley.
> > GRED/RED isn't currently finished but that is a pfctl addition so not
> > difficult.
> >
> > For dummynet i preserve ipfw style statistics so tools of ipfw can be
> > used here to.
> >
> > Since this is PF i preserved ALTQ priotitizing of ACK, meaning on ALTQ you do
> > pass in quick proto tcp from any to any flags S/SA queue(pri, que)
> >
> > You can do the same with dummynet queues only, since for pipes it
> > doesn't make much sense since they simulate a link. So yuo can do
> >
> > dnpipe 10 bandwidth 100Kbit
> > dnqueue 10 dnpipe 10 queue 100
> > dnqueue 20 dnpipe 10 queue 20
> >
> > pass in quick proto tcp from any to any flags S/SA dnqueue(10, 20)
> >
> >
> > Please test and give feedback.
>
> > _______________________________________________
> > freebsd-net@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-net
> > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
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------=_Part_98_11251979.1193602269616--
From owner-freebsd-net@FreeBSD.ORG Sun Oct 28 21:25:35 2007
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Date: Sun, 28 Oct 2007 22:25:34 +0100
From: "=?ISO-8859-1?Q?Ermal_Lu=E7i?=" <ermal.luci@gmail.com>
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Subject: MPLS implementatrion!
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I was wondering why this implementation of MPLS isn't integrated into FreeBSD?!
http://www.info.ucl.ac.be/~iannone/Files/MPLS-Complete.zip
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 01:14:03 2007
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Date: Mon, 29 Oct 2007 01:14:01 +0000
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Subject: Re: MPLS implementatrion!
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Ermal Lu=E7i wrote:
> I was wondering why this implementation of MPLS isn't integrated into F=
reeBSD?!
> http://www.info.ucl.ac.be/~iannone/Files/MPLS-Complete.zip
> =20
At least two reasons spring to mind:
1. It seems to be targeted at FreeBSD 4.2, which is very old indeed.
2. No mention of it in GNATS or the mailing list that I can see or recall=
=2E
3. I'd certainly never heard of it until now, and I've been keeping my=20
eyes peeled for these things.
Also the work doesn't seem to be complete: I'm really not sure that the=20
ability to open an MPLS socket is useful in anything other than an=20
experimental context.
MPLS is not a protocol which is designed with end-stations in mind --=20
it's for routers -- and like any form of traffic engineering, it depends =
on a packet filtering engine at the ingress point. pf could offer such a =
filtering engine.
Whilst it's very cool that someone appeared to have done some of the=20
work... Matthew Luckie came forward a few months back and volunteered=20
to work on porting Ayame to modern FreeBSDs.
It is more likely a better fit for FreeBSD and other projects which can=20
build on it, so I think it is best we hold off for now.
regards,
BMS
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 01:23:13 2007
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From: Julian Elischer <julian@elischer.org>
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To: "Bruce M. Simpson" <bms@FreeBSD.org>
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Cc: freebsd-net@freebsd.org,
=?ISO-8859-1?Q?Ermal_Lu=E7i?= <ermal.luci@gmail.com>
Subject: Re: MPLS implementatrion!
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Bruce M. Simpson wrote:
> Ermal Luçi wrote:
>> I was wondering why this implementation of MPLS isn't integrated into
>> FreeBSD?!
>> http://www.info.ucl.ac.be/~iannone/Files/MPLS-Complete.zip
>>
there's a hell of a lot of these sorts of things out there
that no-one has heard of
>
> At least two reasons spring to mind:
> 1. It seems to be targeted at FreeBSD 4.2, which is very old indeed.
> 2. No mention of it in GNATS or the mailing list that I can see or recall.
> 3. I'd certainly never heard of it until now, and I've been keeping my
> eyes peeled for these things.
>
> Also the work doesn't seem to be complete: I'm really not sure that the
> ability to open an MPLS socket is useful in anything other than an
> experimental context.
>
> MPLS is not a protocol which is designed with end-stations in mind --
> it's for routers -- and like any form of traffic engineering, it depends
> on a packet filtering engine at the ingress point. pf could offer such a
> filtering engine.
>
> Whilst it's very cool that someone appeared to have done some of the
> work... Matthew Luckie came forward a few months back and volunteered
> to work on porting Ayame to modern FreeBSDs.
>
> It is more likely a better fit for FreeBSD and other projects which can
> build on it, so I think it is best we hold off for now.
>
> regards,
> BMS
>
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 09:58:29 2007
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To: linimon@FreeBSD.org, freebsd-bugs@FreeBSD.org, freebsd-net@FreeBSD.org
From: linimon@FreeBSD.org
Cc:
Subject: Re: kern/117423: Duplicate IP on different interfaces
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Synopsis: Duplicate IP on different interfaces
Responsible-Changed-From-To: freebsd-bugs->freebsd-net
Responsible-Changed-By: linimon
Responsible-Changed-When: Mon Oct 29 09:57:59 UTC 2007
Responsible-Changed-Why:
Over to maintainer(s).
http://www.freebsd.org/cgi/query-pr.cgi?pr=117423
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 10:00:06 2007
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From: Jacek Zapala <jacek@ipv6.jacek.it.pl>
Cc:
Subject: Re: kern/117456: ipv6 neighbour discovery / bce multicast problem
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The following reply was made to PR kern/117456; it has been noted by GNATS.
From: Jacek Zapala <jacek@ipv6.jacek.it.pl>
To: bug-followup@FreeBSD.org
Cc:
Subject: Re: kern/117456: ipv6 neighbour discovery / bce multicast problem
Date: Mon, 29 Oct 2007 10:50:18 +0100
--=-OnEZhZq5git3EvQIW/zR
Content-Type: text/plain
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I have found the bug in the bce driver. Patch attached.
--
Jacek
--=-OnEZhZq5git3EvQIW/zR
Content-Disposition: attachment; filename=bce_multicast_patch.diff
Content-Type: text/x-patch; name=bce_multicast_patch.diff; charset=ISO-8859-2
Content-Transfer-Encoding: 7bit
--- dev/bce/if_bce.c.old Sun Oct 28 02:35:08 2007
+++ dev/bce/if_bce.c Mon Oct 29 10:27:22 2007
@@ -5209,10 +5209,12 @@
{
struct ifnet *ifp;
struct ifmultiaddr *ifma;
- u32 hashes[4] = { 0, 0, 0, 0 };
+ u32 hashes[NUM_MC_HASH_REGISTERS];
u32 rx_mode, sort_mode;
int h, i;
+ memset(hashes, 0, 4 * NUM_MC_HASH_REGISTERS);
+
BCE_LOCK_ASSERT(sc);
ifp = sc->bce_ifp;
@@ -5257,12 +5259,12 @@
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
h = ether_crc32_le(LLADDR((struct sockaddr_dl *)
- ifma->ifma_addr), ETHER_ADDR_LEN) & 0x7F;
- hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
+ ifma->ifma_addr), ETHER_ADDR_LEN) & 0xFF;
+ hashes[(h & 0xe0) >> 5] |= 1 << (h & 0x1F);
}
IF_ADDR_UNLOCK(ifp);
- for (i = 0; i < 4; i++)
+ for (i = 0; i < NUM_MC_HASH_REGISTERS; i++)
REG_WR(sc, BCE_EMAC_MULTICAST_HASH0 + (i * 4), hashes[i]);
sort_mode |= BCE_RPM_SORT_USER0_MC_HSH_EN;
--=-OnEZhZq5git3EvQIW/zR--
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 10:12:52 2007
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Cc:
Subject: Re: kern/117271: [tap] OpenVPN TAP uses 99% CPU on releng_6 when
if_tap is in /boot/loader.conf
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Synopsis: [tap] OpenVPN TAP uses 99% CPU on releng_6 when if_tap is in /boot/loader.conf
Responsible-Changed-From-To: freebsd-bugs->freebsd-net
Responsible-Changed-By: linimon
Responsible-Changed-When: Mon Oct 29 10:11:54 UTC 2007
Responsible-Changed-Why:
Over to maintainer(s).
http://www.freebsd.org/cgi/query-pr.cgi?pr=117271
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 11:07:18 2007
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Subject: Current problem reports assigned to freebsd-net@FreeBSD.org
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Current FreeBSD problem reports
Critical problems
S Tracker Resp. Description
--------------------------------------------------------------------------------
o kern/115360 net [ipv6] IPv6 address and if_bridge don't play well toge
1 problem total.
Serious problems
S Tracker Resp. Description
--------------------------------------------------------------------------------
s kern/21998 net [socket] [patch] ident only for outgoing connections
a kern/38554 net changing interface ipaddress doesn't seem to work
s kern/39937 net ipstealth issue
s kern/81147 net [net] [patch] em0 reinitialization while adding aliase
o kern/92552 net A serious bug in most network drivers from 5.X to 6.X
s kern/95665 net [if_tun] "ping: sendto: No buffer space available" wit
s kern/105943 net Network stack may modify read-only mbuf chain copies
o kern/106316 net [dummynet] dummynet with multipass ipfw drops packets
o kern/108542 net [bce]: Huge network latencies with 6.2-RELEASE / STABL
o kern/109406 net [ndis] Broadcom WLAN driver 4.100.15.5 doesn't work wi
o kern/110959 net [ipsec] Filtering incoming packets with enc0 does not
o kern/112528 net [nfs] NFS over TCP under load hangs with "impossible p
o kern/112686 net [patm] patm driver freezes System (FreeBSD 6.2-p4) i38
o kern/112722 net IP v4 udp fragmented packet reject
o kern/113457 net [ipv6] deadlock occurs if a tunnel goes down while the
o kern/113842 net [ipv6] PF_INET6 proto domain state can't be cleared wi
o kern/114714 net [gre][patch] gre(4) is not MPSAFE and does not support
o kern/114839 net [fxp] fxp looses ability to speak with traffic
o kern/115239 net [ipnat] panic with 'kmem_map too small' using ipnat
o kern/116077 net 6.2-STABLE panic during use of multi-cast networking c
o kern/116172 net Network / ipv6 recursive mutex panic
o kern/116185 net if_iwi driver leads system to reboot
o kern/116186 net can not set wi channel on current
o kern/116328 net [bge]: Solid hang with bge interface
o kern/116747 net [ndis] FreeBSD 7.0-CURRENT crash with Dell TrueMobile
o kern/116837 net ifconfig tunX destroy: panic
o kern/117271 net [tap] OpenVPN TAP uses 99% CPU on releng_6 when if_tap
o kern/117293 net [carp] CARP interfaces causes packet loss
o kern/117423 net Duplicate IP on different interfaces
o bin/117448 net [carp] 6.2 kernel crash
30 problems total.
Non-critical problems
S Tracker Resp. Description
--------------------------------------------------------------------------------
o conf/23063 net [PATCH] for static ARP tables in rc.network
s bin/41647 net ifconfig(8) doesn't accept lladdr along with inet addr
o kern/54383 net [nfs] [patch] NFS root configurations without dynamic
s kern/60293 net FreeBSD arp poison patch
o kern/95267 net packet drops periodically appear
f kern/95277 net [netinet] [patch] IP Encapsulation mask_match() return
o kern/100519 net [netisr] suggestion to fix suboptimal network polling
o kern/102035 net [plip] plip networking disables parallel port printing
o conf/102502 net [patch] ifconfig name does't rename netgraph node in n
o kern/103253 net inconsistent behaviour in arp reply of a bridge
o conf/107035 net [patch] bridge interface given in rc.conf not taking a
o kern/112654 net [pcn] Kernel panic upon if_pcn module load on a Netfin
o kern/114095 net [carp] carp+pf delay with high state limit
o kern/114915 net [patch] [pcn] pcn (sys/pci/if_pcn.c) ethernet driver f
o bin/116643 net [patch] fstat(1): add INET/INET6 socket details as in
o bin/117339 net [patch] route(8): loading routing management commands
o kern/117456 net [ipv6] ipv6 neighbour discovery / bce multicast probl
17 problems total.
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 15:04:27 2007
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Cc: freebsd-net@FreeBSD.org, Matus Harvan <mharvan@inf.ethz.ch>,
Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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On Sat, Oct 27, 2007 at 04:21:23AM +0100, Bruce M. Simpson wrote:
> Matus Harvan wrote:
> > Hi,
> >
> > I was wondering if I could get some feedback about the patch and
> > whether others think it could be committed.
> > =20
>=20
> The UDP catchall patch as submitted here clashes with the blackhole=20
> functionality, and also bypasses the update of the protocol statistics a=
nd=20
> unreachable port rate limiting. It is not yet suitable for a production=
=20
> kernel.
>=20
> It probably shouldn't trigger the log_in_vain message, however that log=
=20
> message is misleading anyway (the reception of UDP datagrams destined fo=
r=20
> unbound ports is not a 'connection attempt').
>=20
> I would argue that the UDP and TCP catchall feature should perhaps have =
a=20
> configurable port range as well, under=20
> net.inet.ip.portrange.relayhigh/relaylow. This would allow the inpcb cod=
e to=20
> avoid allocating sockets from that range at all -- as well as allowing=
=20
> inbound packets for that range to be immediately relayed to mtund withou=
t=20
> the cost of a hash lookup.
While I think this idea has some merit, I think we specifically want
the current wildcard ability to allow for a system that requires
minimal configuration. The problem with a range is that it doesn't
allow disjoint sets and it requires that if you really do want all the
ports you need to produce a list of currently allocated ports to avoid
allocating. A more (over)engineered solution holds some attraction, but
I'm not yet convinced the fact that it could exist precludes the current
implementation.
-- Brooks
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From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 16:51:02 2007
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Date: Mon, 29 Oct 2007 09:03:44 +0200
From: "Vlad GALU" <dudu@dudu.ro>
To: "Julian Elischer" <julian@elischer.org>
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References: <9a542da30710281425v1c95c58rf10e3a94b974fd2d@mail.gmail.com>
<472533D9.3010600@FreeBSD.org> <4725361C.8030806@elischer.org>
Cc: freebsd-net@freebsd.org, "Bruce M. Simpson" <bms@freebsd.org>,
=?ISO-8859-1?Q?Ermal_Lu=E7i?= <ermal.luci@gmail.com>
Subject: Re: MPLS implementatrion!
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On 10/29/07, Julian Elischer <julian@elischer.org> wrote:
> Bruce M. Simpson wrote:
> > Ermal Lu=E7i wrote:
> >> I was wondering why this implementation of MPLS isn't integrated into
> >> FreeBSD?!
> >> http://www.info.ucl.ac.be/~iannone/Files/MPLS-Complete.zip
> >>
>
> there's a hell of a lot of these sorts of things out there
> that no-one has heard of
A friend of mine wrote a LDP implementation for NetBSD:
http://kefren.netbsd.ro/. Feel free to glance at it :)
>
> >
> > At least two reasons spring to mind:
> > 1. It seems to be targeted at FreeBSD 4.2, which is very old indeed.
> > 2. No mention of it in GNATS or the mailing list that I can see or reca=
ll.
> > 3. I'd certainly never heard of it until now, and I've been keeping my
> > eyes peeled for these things.
> >
> > Also the work doesn't seem to be complete: I'm really not sure that the
> > ability to open an MPLS socket is useful in anything other than an
> > experimental context.
> >
> > MPLS is not a protocol which is designed with end-stations in mind --
> > it's for routers -- and like any form of traffic engineering, it depend=
s
> > on a packet filtering engine at the ingress point. pf could offer such =
a
> > filtering engine.
> >
> > Whilst it's very cool that someone appeared to have done some of the
> > work... Matthew Luckie came forward a few months back and volunteered
> > to work on porting Ayame to modern FreeBSDs.
> >
> > It is more likely a better fit for FreeBSD and other projects which can
> > build on it, so I think it is best we hold off for now.
> >
> > regards,
> > BMS
> >
> > _______________________________________________
> > freebsd-net@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-net
> > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
--=20
Mahnahmahnah!
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 18:44:05 2007
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Date: Mon, 29 Oct 2007 10:45:17 -0700
From: "Jack Vogel" <jfvogel@gmail.com>
To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
"FreeBSD Stable List" <freebsd-stable@freebsd.org>,
"FreeBSD Current" <freebsd-current@freebsd.org>
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Cc:
Subject: RFC: Evolution of the em driver
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I have an important decision to make and I thought rather than just make
it and spring it on you I'd present the issues and see what opinions were.
Our newer hardware uses new features that, more and more, require
parallel code paths in the driver. For instance, the 82575 (Zoar) uses
what are called 'advanced descriptors', this means different TX path.
The 7.0 em driver has this support in it, it just uses a function pointer
to handle it.
When I add in multiqueue/RSS support it will add even more code
that functions this way.
What the Linux team did was to split the newer code into a standalone
driver, they call it 'igb'. I had originally resisted doing this, but with
the development I have been working on the past month I am starting
to wonder if it might not be best to follow them.
I see 3 possibilities and I'd like feedback, which would you prefer if
you have a preference and why.
First, keep the driver as is and just live with multiple code paths
and features, possibly #ifdef'ed as they appear.
Second, split the driver as Linux has into em and igb. The added
question then is how to split it, Linux made the line the use of
advanced descriptors, so Zoar and after, but I could also see a
case for having everything PCI-E/MSI capable being in the new
driver.
Third, sort of a half-way approach, split up code but not the
driver, in other words offer different source files that can be
compiled into the driver, so you could have the one big jumbo
driver with all in there, or one that will only work with a subset
of adapters. This one would probably be the most work, because
its a new approach.
Cheers,
Jack
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 20:03:24 2007
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From: "Bruce M. Simpson" <bms@FreeBSD.org>
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To: Brooks Davis <brooks@FreeBSD.org>
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<20071026154057.GG1049@styx.ethz.ch> <4722AEB3.1010208@FreeBSD.org>
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Cc: freebsd-net@FreeBSD.org, Matus Harvan <mharvan@inf.ethz.ch>,
Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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Brooks Davis wrote:
> While I think this idea has some merit, I think we specifically want
> the current wildcard ability to allow for a system that requires
> minimal configuration. The problem with a range is that it doesn't
> allow disjoint sets and it requires that if you really do want all the
> ports you need to produce a list of currently allocated ports to avoid
> allocating. A more (over)engineered solution holds some attraction, but
> I'm not yet convinced the fact that it could exist precludes the current
> implementation.
Actually I concur with you on this point, based solely on the disjoint
sets point.
Another vector of attack would be to put the relay functionality into
PF, which can do the packet matching. However this of course suffers
from the problem that if you just want a plain old UDP socket for mtund,
you won't get that unless you go to the inpcb layer anyway.
But who says mtund needs to use sockets for its traffic relay? There is
definite appeal in *not* doing it in the socket layer at all -- an
adaptation of pf's log socket may suffice...
Just my 2c for now...
BMS
From owner-freebsd-net@FreeBSD.ORG Mon Oct 29 21:10:34 2007
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Cc: pyunyh@gmail.com
Subject: Re: Realtek Gigabit Network Card 0xd6088086
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Pyun YongHyeon escreveu:
> On Wed, Oct 24, 2007 at 10:28:46PM -0200, Daniel Dias Gon?alves wrote:
> > Hi,
> >
> > FreeBSD 6.2-STABLE can support this network card?
> >
> > none2@pci3:0:0: class=0x020000 card=0xd6088086 chip=0x816810ec rev=0x01
> > hdr=0x00
> > vendor = 'Realtek Semiconductor'
> > class = network
> > subclass = ethernet
> >
>
> If it's not detected by re(4) your NIC would be newer 8168 series.
> So try re(4) first and let me know the result.(I have a WIP version
> for newer 8168 family but need testers.)
>
>
Hi,
I' m using kernel generic "SMP"
(root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP) and already is
enable "device re", but dont work.
What is WIP version ?
Thanks
Daniel
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 00:20:41 2007
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To: "Jack Vogel" <jfvogel@gmail.com>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: RFC: Evolution of the em driver
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Jack, you should know by now that we're not Linux. All we care about
is that you not break the code that we rely on. I'm still slightly
embarrassed when I explain to people that I build if_em as a module
because em0 doesn't come up sometimes due to a race condition on
initialization, so I need to be able to re-load the driver. We're
happy that you're keeping support for Intel's hardware up to date on
FreeBSD.
-Kip
On 10/29/07, Jack Vogel <jfvogel@gmail.com> wrote:
> I have an important decision to make and I thought rather than just make
> it and spring it on you I'd present the issues and see what opinions were.
>
> Our newer hardware uses new features that, more and more, require
> parallel code paths in the driver. For instance, the 82575 (Zoar) uses
> what are called 'advanced descriptors', this means different TX path.
> The 7.0 em driver has this support in it, it just uses a function pointer
> to handle it.
>
> When I add in multiqueue/RSS support it will add even more code
> that functions this way.
>
> What the Linux team did was to split the newer code into a standalone
> driver, they call it 'igb'. I had originally resisted doing this, but with
> the development I have been working on the past month I am starting
> to wonder if it might not be best to follow them.
>
> I see 3 possibilities and I'd like feedback, which would you prefer if
> you have a preference and why.
>
> First, keep the driver as is and just live with multiple code paths
> and features, possibly #ifdef'ed as they appear.
>
> Second, split the driver as Linux has into em and igb. The added
> question then is how to split it, Linux made the line the use of
> advanced descriptors, so Zoar and after, but I could also see a
> case for having everything PCI-E/MSI capable being in the new
> driver.
>
> Third, sort of a half-way approach, split up code but not the
> driver, in other words offer different source files that can be
> compiled into the driver, so you could have the one big jumbo
> driver with all in there, or one that will only work with a subset
> of adapters. This one would probably be the most work, because
> its a new approach.
>
> Cheers,
>
> Jack
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
>
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 01:10:39 2007
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Date: Tue, 30 Oct 2007 10:10:11 +0900
From: Pyun YongHyeon <pyunyh@gmail.com>
To: Daniel Dias Gon?alves <daniel@dgnetwork.com.br>
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Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org
Subject: Re: Realtek Gigabit Network Card 0xd6088086
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On Mon, Oct 29, 2007 at 06:40:59PM -0200, Daniel Dias Gon?alves wrote:
> Pyun YongHyeon escreveu:
> >On Wed, Oct 24, 2007 at 10:28:46PM -0200, Daniel Dias Gon?alves wrote:
> > > Hi,
> > >
> > > FreeBSD 6.2-STABLE can support this network card?
> > >
> > > none2@pci3:0:0: class=0x020000 card=0xd6088086 chip=0x816810ec rev=0x01
> > > hdr=0x00
> > > vendor = 'Realtek Semiconductor'
> > > class = network
> > > subclass = ethernet
> > >
> >
> >If it's not detected by re(4) your NIC would be newer 8168 series.
> >So try re(4) first and let me know the result.(I have a WIP version
> >for newer 8168 family but need testers.)
> >
> >
> Hi,
>
> I' m using kernel generic "SMP"
> (root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP) and already is
> enable "device re", but dont work.
> What is WIP version ?
work in progress version.
Try attached patch. One user reported the patch generated ARP storm
so I requested more information for the issue but got no reply yet.
--
Regards,
Pyun YongHyeon
--AqsLC8rIMeq19msA
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="re.spin3.patch"
Index: dev/re/if_re.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/re/if_re.c,v
retrieving revision 1.95
diff -u -r1.95 if_re.c
--- dev/re/if_re.c 14 Aug 2007 02:00:04 -0000 1.95
+++ dev/re/if_re.c 30 Oct 2007 01:05:06 -0000
@@ -180,6 +180,8 @@
"RealTek 8168/8111B PCIe Gigabit Ethernet" },
{ RT_VENDORID, RT_DEVICEID_8168, RL_HWREV_8168_SPIN2,
"RealTek 8168/8111B PCIe Gigabit Ethernet" },
+ { RT_VENDORID, RT_DEVICEID_8168, RL_HWREV_8168_SPIN3,
+ "RealTek 8168/8111B PCIe Gigabit Ethernet" },
{ RT_VENDORID, RT_DEVICEID_8169, RL_HWREV_8169,
"RealTek 8169 Gigabit Ethernet" },
{ RT_VENDORID, RT_DEVICEID_8169, RL_HWREV_8169S,
@@ -221,6 +223,7 @@
{ RL_HWREV_8100E, RL_8169, "8100E"},
{ RL_HWREV_8101E, RL_8169, "8101E"},
{ RL_HWREV_8168_SPIN2, RL_8169, "8168"},
+ { RL_HWREV_8168_SPIN3, RL_8169, "8168"},
{ 0, 0, NULL }
};
@@ -676,14 +679,18 @@
*/
hwrev = CSR_READ_4(sc, RL_TXCFG) & RL_TXCFG_HWREV;
-
- if (hwrev == RL_HWREV_8100E || hwrev == RL_HWREV_8101E ||
- hwrev == RL_HWREV_8168_SPIN1 || hwrev == RL_HWREV_8168_SPIN2) {
+ switch (hwrev) {
+ case RL_HWREV_8100E:
+ case RL_HWREV_8101E:
+ case RL_HWREV_8168_SPIN1:
+ case RL_HWREV_8168_SPIN2:
CSR_WRITE_4(sc, RL_MAR0, bswap32(hashes[1]));
CSR_WRITE_4(sc, RL_MAR4, bswap32(hashes[0]));
- } else {
+ break;
+ default:
CSR_WRITE_4(sc, RL_MAR0, hashes[0]);
CSR_WRITE_4(sc, RL_MAR4, hashes[1]);
+ break;
}
}
@@ -1314,6 +1321,7 @@
case RL_HWREV_8169_8110SB:
case RL_HWREV_8169_8110SC:
case RL_HWREV_8168_SPIN2:
+ case RL_HWREV_8168_SPIN3:
re_gmii_writereg(dev, 1, 0x1f, 0);
re_gmii_writereg(dev, 1, 0x0e, 0);
break;
Index: pci/if_rlreg.h
===================================================================
RCS file: /home/ncvs/src/sys/pci/if_rlreg.h,v
retrieving revision 1.67
diff -u -r1.67 if_rlreg.h
--- pci/if_rlreg.h 24 Jul 2007 01:24:03 -0000 1.67
+++ pci/if_rlreg.h 30 Oct 2007 01:05:07 -0000
@@ -156,6 +156,7 @@
#define RL_HWREV_8100E 0x30800000
#define RL_HWREV_8101E 0x34000000
#define RL_HWREV_8168_SPIN2 0x38000000
+#define RL_HWREV_8168_SPIN3 0x38400000
#define RL_HWREV_8139 0x60000000
#define RL_HWREV_8139A 0x70000000
#define RL_HWREV_8139AG 0x70800000
--AqsLC8rIMeq19msA--
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 05:49:17 2007
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Date: Mon, 29 Oct 2007 22:21:51 -0700
From: "Brian McGinty" <brian.mcginty@gmail.com>
To: "Jack Vogel" <jfvogel@gmail.com>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: RFC: Evolution of the em driver
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I prefer (2) - non-intrusive on em, and the new one doesn't have to deal
with legacy or backward compatibility with em.
Any commonality with ixgbe?
Later
Brian.
On 10/29/07, Jack Vogel <jfvogel@gmail.com> wrote:
>
> I have an important decision to make and I thought rather than just make
> it and spring it on you I'd present the issues and see what opinions were.
>
> Our newer hardware uses new features that, more and more, require
> parallel code paths in the driver. For instance, the 82575 (Zoar) uses
> what are called 'advanced descriptors', this means different TX path.
> The 7.0 em driver has this support in it, it just uses a function pointer
> to handle it.
>
> When I add in multiqueue/RSS support it will add even more code
> that functions this way.
>
> What the Linux team did was to split the newer code into a standalone
> driver, they call it 'igb'. I had originally resisted doing this, but with
> the development I have been working on the past month I am starting
> to wonder if it might not be best to follow them.
>
> I see 3 possibilities and I'd like feedback, which would you prefer if
> you have a preference and why.
>
> First, keep the driver as is and just live with multiple code paths
> and features, possibly #ifdef'ed as they appear.
>
> Second, split the driver as Linux has into em and igb. The added
> question then is how to split it, Linux made the line the use of
> advanced descriptors, so Zoar and after, but I could also see a
> case for having everything PCI-E/MSI capable being in the new
> driver.
>
> Third, sort of a half-way approach, split up code but not the
> driver, in other words offer different source files that can be
> compiled into the driver, so you could have the one big jumbo
> driver with all in there, or one that will only work with a subset
> of adapters. This one would probably be the most work, because
> its a new approach.
>
> Cheers,
>
> Jack
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
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Date: Tue, 30 Oct 2007 09:05:01 +0100
From: Wilko Bulte <wb@freebie.xs4all.nl>
To: Daniel Dias =?iso-8859-1?Q?Gon=E7alves?= <daniel@dgnetwork.com.br>
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Cc: pyunyh@gmail.com, freebsd-net@freebsd.org, freebsd-stable@freebsd.org
Subject: Re: Realtek Gigabit Network Card 0xd6088086
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Quoting Daniel Dias Gonalves, who wrote on Mon, Oct 29, 2007 at 06:40:59PM -0200 ..
> Pyun YongHyeon escreveu:
> >On Wed, Oct 24, 2007 at 10:28:46PM -0200, Daniel Dias Gon?alves wrote:
> > > Hi,
> > >
> > > FreeBSD 6.2-STABLE can support this network card?
> > >
> > > none2@pci3:0:0: class=0x020000 card=0xd6088086 chip=0x816810ec
> > rev=0x01 > hdr=0x00
> > > vendor = 'Realtek Semiconductor'
> > > class = network
> > > subclass = ethernet
> > >
> >
> >If it's not detected by re(4) your NIC would be newer 8168 series.
> >So try re(4) first and let me know the result.(I have a WIP version
> >for newer 8168 family but need testers.)
> >
> >
> Hi,
>
> I' m using kernel generic "SMP"
> (root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP) and already is
> enable "device re", but dont work.
> What is WIP version ?
Work In Progress. So Pyun is working on it right now.
--
Wilko Bulte wilko@FreeBSD.org
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 09:30:18 2007
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Cc: freebsd-net@freebsd.org
Subject: Re: Realtek Gigabit Network Card 0xd6088086
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Daniel Dias Gonçalves wrote:
> What is WIP version ?
http://www.acronymfinder.com/af-query.asp?Acronym=WIP&Find=find&string=exact
--
Tuomo
... Drawing on my fine command of language, I said nothing
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 11:47:35 2007
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To: "Jack Vogel" <jfvogel@gmail.com>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
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Subject: Re: RFC: Evolution of the em driver
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At Mon, 29 Oct 2007 10:45:17 -0700,
Jack Vogel wrote:
>
> I have an important decision to make and I thought rather than just make
> it and spring it on you I'd present the issues and see what opinions were.
>
> Our newer hardware uses new features that, more and more, require
> parallel code paths in the driver. For instance, the 82575 (Zoar) uses
> what are called 'advanced descriptors', this means different TX path.
> The 7.0 em driver has this support in it, it just uses a function pointer
> to handle it.
>
> When I add in multiqueue/RSS support it will add even more code
> that functions this way.
>
> What the Linux team did was to split the newer code into a standalone
> driver, they call it 'igb'. I had originally resisted doing this, but with
> the development I have been working on the past month I am starting
> to wonder if it might not be best to follow them.
>
> I see 3 possibilities and I'd like feedback, which would you prefer if
> you have a preference and why.
>
> First, keep the driver as is and just live with multiple code paths
> and features, possibly #ifdef'ed as they appear.
>
> Second, split the driver as Linux has into em and igb. The added
> question then is how to split it, Linux made the line the use of
> advanced descriptors, so Zoar and after, but I could also see a
> case for having everything PCI-E/MSI capable being in the new
> driver.
>
> Third, sort of a half-way approach, split up code but not the
> driver, in other words offer different source files that can be
> compiled into the driver, so you could have the one big jumbo
> driver with all in there, or one that will only work with a subset
> of adapters. This one would probably be the most work, because
> its a new approach.
As you're the main maintainer it's your choice. Whatever is easiest
for you and gives us the most readable code.
Best,
George
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 15:40:03 2007
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From: Jacek Zapala <jacek@ipv6.jacek.it.pl>
Cc:
Subject: Re: kern/117456: ipv6 neighbour discovery / bce multicast problem
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The following reply was made to PR kern/117456; it has been noted by GNATS.
From: Jacek Zapala <jacek@ipv6.jacek.it.pl>
To: bug-followup@FreeBSD.org
Cc:
Subject: Re: kern/117456: ipv6 neighbour discovery / bce multicast problem
Date: Tue, 30 Oct 2007 16:32:38 +0100
OK, it looks like I have reinvented the wheel. Close the PR please.
Revision 1.26:
Sat Jan 20 17:05:12 2007 UTC (9 months, 1 week ago) by scottl
Branches: MAIN
Changes since revision 1.25: +4 -4 lines
The multicast hash table has 8 slots in the BCE hardware, not 4 slots
like
the BGE hardware. Adapt the driver for this.
Submitted by: Mike Karels
MFC After: 3 days
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 16:13:23 2007
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References: <9a542da30710161409o4732a77bybdf4ba35d7491bb@mail.gmail.com> <200710171043.08126.max@love2party.net> <d5992baf0710171324n65c4b171l71db8aeac445b52d@mail.gmail.com> <9a542da30710211232v4d3c930fg8ea778a12f3f16cb@mail.gmail.com> <9a542da30710280617t11e668e2o4d122998192f71c@mail.gmail.com> <20071028095802.A61999@xorpc.icir.org> <9a542da30710281013q642b5aa8k33c7836ee064242e@mail.gmail.com>
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Cc: freebsd-net@freebsd.org, freebsd-pf@freebsd.org
Subject: Re: Fwd: [PATCH] PF+dummynet
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Ermal Luçi wrote:
> Ok thanks to remko@ for hosting it!
>
> You can find it here:
> http://people.freebsd.org/~remko/patches/dummynet_pf.tar.gz
>
> Please test and give feedback.
I am really interested in your patch and hope that I will soon have time to test it.
Meanwhile, I would like to ask you how dummynet interacts with the pf keep state
function. Ideally, one should be able to send uplink / downlink traffic to
different pipes. For example,
dnpipe 10 config bw 4Mbit mask src-ip 0x000000ff queue 10
dnpipe 11 config bw 4Mbit mask dst-ip 0x000000ff queue 10
pass in from $if_int proto tcp from any to any port 80 keep state dnpipe (up 10,
down 11)
should limit HTTP traffic for each host, to 4Mbps.
Could you please tell me how this works?
>
>>> It gives full dummynet support in pf.conf syntax and removes dummynet
>>> depndency to ipfw.
>>>
>>> You can configure a pipe/queue using the same ipfw syntax the only
>>> difference is that i call those 'dnpipe'/'dnqueue' respectivley.
>>> GRED/RED isn't currently finished but that is a pfctl addition so not
>>> difficult.
>>>
>>> For dummynet i preserve ipfw style statistics so tools of ipfw can be
>>> used here to.
>>>
>>> Since this is PF i preserved ALTQ priotitizing of ACK, meaning on ALTQ you do
>>> pass in quick proto tcp from any to any flags S/SA queue(pri, que)
>>>
>>> You can do the same with dummynet queues only, since for pipes it
>>> doesn't make much sense since they simulate a link. So yuo can do
>>>
>>> dnpipe 10 bandwidth 100Kbit
>>> dnqueue 10 dnpipe 10 queue 100
>>> dnqueue 20 dnpipe 10 queue 20
>>>
>>> pass in quick proto tcp from any to any flags S/SA dnqueue(10, 20)
>>>
>>>
>>> Please test and give feedback.
>>> _______________________________________________
>>> freebsd-net@freebsd.org mailing list
>>> http://lists.freebsd.org/mailman/listinfo/freebsd-net
>>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>>
>> ------------------------------------------------------------------------
>>
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From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 17:01:52 2007
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Date: Tue, 30 Oct 2007 10:01:48 -0700
From: "Jack Vogel" <jfvogel@gmail.com>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: RFC: Evolution of the em driver
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On 10/30/07, gnn@freebsd.org <gnn@freebsd.org> wrote:
> At Mon, 29 Oct 2007 10:45:17 -0700,
> Jack Vogel wrote:
> >
> > I have an important decision to make and I thought rather than just make
> > it and spring it on you I'd present the issues and see what opinions were.
> >
> > Our newer hardware uses new features that, more and more, require
> > parallel code paths in the driver. For instance, the 82575 (Zoar) uses
> > what are called 'advanced descriptors', this means different TX path.
> > The 7.0 em driver has this support in it, it just uses a function pointer
> > to handle it.
> >
> > When I add in multiqueue/RSS support it will add even more code
> > that functions this way.
> >
> > What the Linux team did was to split the newer code into a standalone
> > driver, they call it 'igb'. I had originally resisted doing this, but with
> > the development I have been working on the past month I am starting
> > to wonder if it might not be best to follow them.
> >
> > I see 3 possibilities and I'd like feedback, which would you prefer if
> > you have a preference and why.
> >
> > First, keep the driver as is and just live with multiple code paths
> > and features, possibly #ifdef'ed as they appear.
> >
> > Second, split the driver as Linux has into em and igb. The added
> > question then is how to split it, Linux made the line the use of
> > advanced descriptors, so Zoar and after, but I could also see a
> > case for having everything PCI-E/MSI capable being in the new
> > driver.
> >
> > Third, sort of a half-way approach, split up code but not the
> > driver, in other words offer different source files that can be
> > compiled into the driver, so you could have the one big jumbo
> > driver with all in there, or one that will only work with a subset
> > of adapters. This one would probably be the most work, because
> > its a new approach.
>
> As you're the main maintainer it's your choice. Whatever is easiest
> for you and gives us the most readable code.
Thanks, I know its my choice, I was just looking for opinions about
the options I had to chose from :)
I think I've had enough feedback to decide, I think the seperate
driver is the direction. I need to give some thought to where to
make the split.
Thanks for everyone's feedback.
Jack
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 17:16:26 2007
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Date: Tue, 30 Oct 2007 10:16:22 -0700
From: "Jack Vogel" <jfvogel@gmail.com>
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Subject: em watchdog problem
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This morning I had an idea about what the source of the watchdog
problem is. Also, we have repro'd at least one type of watchdog
inhouse.
One question, is this problem only happening for those running
STABLE with the 6.6.6 merged driver?
We found the problem does not seem to happen on 7.0.
Right now my suspicion is that the FAST irq handling is
again causing a problem. I am experimenting with variations
to the code today to be sure whats going on, and hopefully
fixing it.
Cheers,
Jack
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 20:17:47 2007
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Subject: em watchdogs - OS involvement
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Things just keep getting stranger... its no wonder I didn't see this...
I had been trying to repro the watchdog on a machine in my cube at work
without success, but in the test Lab they were successful. I scratched my
head for a while wondering why...
But then I realized I had the Sept snapshot in my cube, reinstalled it to
the Oct snapshot and now it watchdogs like a champ too.....
Another bit of data, if I define DEVICE_POLLING on the Oct. snap it
also will work.
SOOOOO, what changes were made to interrupts between Sept and
October, something I need to do perhaps that wasnt done??
Any ideas??
Jack
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 20:34:52 2007
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From: Jeremie Le Hen <jeremie@le-hen.org>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
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References: <20070909201837.GA18107@inf.ethz.ch>
<20071026154057.GG1049@styx.ethz.ch> <4722AEB3.1010208@FreeBSD.org>
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Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>,
Matus Harvan <mharvan@inf.ethz.ch>, Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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On Mon, Oct 29, 2007 at 07:49:47PM +0000, Bruce M. Simpson wrote:
> Brooks Davis wrote:
> > While I think this idea has some merit, I think we specifically want
> > the current wildcard ability to allow for a system that requires
> > minimal configuration. The problem with a range is that it doesn't
> > allow disjoint sets and it requires that if you really do want all the
> > ports you need to produce a list of currently allocated ports to avoid
> > allocating. A more (over)engineered solution holds some attraction, but
> > I'm not yet convinced the fact that it could exist precludes the current
> > implementation.
>
> Actually I concur with you on this point, based solely on the disjoint sets
> point.
>
> Another vector of attack would be to put the relay functionality into PF,
> which can do the packet matching. However this of course suffers from the
> problem that if you just want a plain old UDP socket for mtund, you won't
> get that unless you go to the inpcb layer anyway.
>
> But who says mtund needs to use sockets for its traffic relay? There is
> definite appeal in *not* doing it in the socket layer at all -- an
> adaptation of pf's log socket may suffice...
I can think of a possible implementation of mtund(8) without kernel
patching. The next pf(4) import from OpenBSD will likely allow to log
to some particular pflog(4) interface (instead of the default pflog0).
It will then be possible to create a couple of rules matching one or
more ranges of ports and logging to, say, pflog1. Reading on the
latter, mtund(8) will immediately open a socket bound to the
corresponding port. This is a kind of port knocking. Thanks to TCP
retransmission algorithm or mtunc(1)'s cleverness in case of UDP socket,
the second packet should hit mtund(8).
One downside is that it requires a bunch of configuration in pf.conf(5),
so it may not be as straightforward to set up as one may have expected.
I don't know TCP internals, it may affect TCP slow start or have some
other minor drawbacks. But hey, we're talking about bypassing firewall
:-)...
My 2 cents.
Regards,
--
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >
From owner-freebsd-net@FreeBSD.ORG Tue Oct 30 23:18:54 2007
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Subject: In Memoriam: Jun-ichiro Hagino
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A recent posting in BUGTRAQ[1] has announced that Itojun has passed
away. Itojun was a past FreeBSD committer and very active in KAME and
the IPv6 world. No details of his passing were in the BUGTRAQ posting
but some information in Japanese is available at
http://www.hoge.org/~koyama/itojun.txt
[1] http://www.securityfocus.com/archive/1/483015/30/0/threaded
--=20
Peter
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Date: Wed, 31 Oct 2007 01:47:09 +0100
From: Matus Harvan <mharvan@inf.ethz.ch>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
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FILETIME=[921DF280:01C81B57]
Cc: freebsd-net@freebsd.org, Brooks Davis <brooks@freebsd.org>,
Max Laier <max@love2party.net>
Subject: Re: icmp echo_user
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On Sat, Oct 27, 2007 at 03:56:29AM +0100, Bruce M. Simpson wrote:
> Matus Harvan wrote:
>> Hi,
>>=20
>> I was wondering if I could get some feedback about the patch and
>> whether others think it could be committed.
>> =20
>=20
> Thanks for your hard work on mtund. I'm not keen on this patch going int=
o=20
> a mainline kernel, though.
In any case your feedback is appreciated.
> It stomps on bandwidth limitation if that's in effect -- which is a=20
> possible DoS vector -- and also stops updating icmp protocol counters.
I am not sure bandwidth limitation should be enforced for
receiving an icmp echo. ip_icmp.c:471
if (badport_bandlim(BANDLIM_ICMP_ECHO) < 0)
goto freeit;
was meant to limit sending out echo replies or for limiting the
receiving of echo requests?
> I believe we should track echo requests in netstat -p regardless of wheth=
er=20
> the kernel calls icmp_reflect() or not, as it can readily be inferred if =
a)=20
> your diversion to SOCK_RAW is in effect or b) the kernel processed the ec=
ho=20
> request.
I do not have a strong opinion about updating the counters so I
updating them is fine.
You mean only icmpstat.icps_bmcastecho? Or is there another counter
getting updated somewhere else?
> I also believe that a user who installs and configures the tunneling daem=
on=20
> is in a position to know that the ICMP thresholds need to be changed.
>=20
> Assuming the tunneling daemon doesn't process echoes unrelated to its=20
> tunneling (I haven't read the code), then the fact that rip_input() may=
=20
> exhaust its socket input buffer will provide a basic form of hysteresis,=
=20
> however I would suggest that if you intend to deploy this on the open=20
> Internet that the daemon either a) provides its own hysteresis too, b)=20
> tunes itself around the bandwidth limit in effect or c) tunes the bandwid=
th=20
> limit itself.
Currently mtund tries to process anything it receives on its
socket. The first byte of the received payload is used to determine
the type of the traffic, so some random garbage would be discarded
while other random garbage would be interpreted as a tunneled packet
and passed into the tun interface. Later on it would probably fail a
(higher laer protocol) checksum.
The daemon tries to process as much traffic as it can. To me the
bandwidth limit did not seem very useful in the mtund case. If there
is "legitimate" (tunneled) traffic via ICMP then I don't think it
makes sense to enforce a limit on it.
In general my feeling was that the amount of data or rate of packets
received on a raw socket should not be bandwidth limited. Is there a
bandwidth limit on receiving for example (legitimate) UDP or TCP
traffic?
> A better approach would be to conditionalise the 'goto raw' next to the=
=20
> 'goto reflect'.
So what you're suggesting is the following, right?
case ICMP_ECHO:
if (!icmpbmcastecho
&& (m->m_flags & (M_MCAST | M_BCAST)) !=3D 0) {
icmpstat.icps_bmcastecho++;
break;
}
icp->icmp_type =3D ICMP_ECHOREPLY;
if (badport_bandlim(BANDLIM_ICMP_ECHO) < 0)
goto freeit;
else {
if (icmpechouser)
goto raw;
else
goto reflect;
}
In case icmpechouser is enabled
* should the packet be dropped if it was multicast/broadcast and
icmpbcastecho is disabled?
I guess yes.
* should the packet be subject to bandwidth limitations from
badport_bandlim(BANDLIM_ICMP_ECHO)?
IMHO not as it is passed to a raw socket rather than the kernel
producing an icmp echo reply in response.
Matus
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From: Matus Harvan <mharvan@inf.ethz.ch>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
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Cc: freebsd-net@freebsd.org, Brooks Davis <brooks@freebsd.org>,
Max Laier <max@love2party.net>
Subject: Re: TCP listenall
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On Sat, Oct 27, 2007 at 04:55:15AM +0100, Bruce M. Simpson wrote:
> listenallr is static and is going to get trashed by concurrent threads,=
=20
> unless there is a serialization with a lock, which I don't see.
I have used sys/netinet/ip_icmp.c:badport_bandlim() for
inspiration. There it did not seem to be protected by any locks
either. Would this be a bug in the ICMP code as well?
Matus
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From: Matus Harvan <mharvan@inf.ethz.ch>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
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Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>,
Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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On Mon, Oct 29, 2007 at 07:49:47PM +0000, Bruce M. Simpson wrote:
> Brooks Davis wrote:
>> While I think this idea has some merit, I think we specifically want
>> the current wildcard ability to allow for a system that requires
>> minimal configuration. The problem with a range is that it doesn't
>> allow disjoint sets and it requires that if you really do want all the
>> ports you need to produce a list of currently allocated ports to avoid
>> allocating. A more (over)engineered solution holds some attraction, but
>> I'm not yet convinced the fact that it could exist precludes the current
>> implementation.
>=20
> Actually I concur with you on this point, based solely on the disjoint se=
ts=20
> point.
>=20
> Another vector of attack would be to put the relay functionality into PF,=
=20
> which can do the packet matching. However this of course suffers from the=
=20
> problem that if you just want a plain old UDP socket for mtund, you won't=
=20
> get that unless you go to the inpcb layer anyway.
>=20
> But who says mtund needs to use sockets for its traffic relay? There is=
=20
> definite appeal in *not* doing it in the socket layer at all -- an=20
> adaptation of pf's log socket may suffice...
My initial understanding of a raw IP socket was that I could simply
receive any packet for a particular protocol. This almost works for
ICMP, but TCP and UDP don't seem to be supported. Hence, I have
perceived the patch also as a natural extension of the idea of a raw
IP socket for the UDP protocol.
Matus
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From: Matus Harvan <mharvan@inf.ethz.ch>
To: Jeremie Le Hen <jeremie@le-hen.org>
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Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>,
"Bruce M. Simpson" <bms@FreeBSD.org>, Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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On Tue, Oct 30, 2007 at 09:04:11PM +0100, Jeremie Le Hen wrote:
> I can think of a possible implementation of mtund(8) without kernel
> patching. The next pf(4) import from OpenBSD will likely allow to log
> to some particular pflog(4) interface (instead of the default pflog0).
>=20
> It will then be possible to create a couple of rules matching one or
> more ranges of ports and logging to, say, pflog1. Reading on the
> latter, mtund(8) will immediately open a socket bound to the
> corresponding port. This is a kind of port knocking. Thanks to TCP
> retransmission algorithm or mtunc(1)'s cleverness in case of UDP socket,
> the second packet should hit mtund(8).
>=20
> One downside is that it requires a bunch of configuration in pf.conf(5),
> so it may not be as straightforward to set up as one may have expected.
>=20
> I don't know TCP internals, it may affect TCP slow start or have some
> other minor drawbacks. But hey, we're talking about bypassing firewall
> :-)...
If an RST packet is generated in response to the first TCP SYN packet,
then the firewall, which we're trying to pass, might decide that the
port in question is closed and delete/modify the state for the TCP
connection. If the RST packet hits the sender of the SYN packet then
there might be no retransmission as the sender would think the TCP
port is closed.
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From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 01:34:44 2007
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: em watchdog problem
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Jack Vogel wrote:
> This morning I had an idea about what the source of the watchdog
> problem is. Also, we have repro'd at least one type of watchdog
> inhouse.
>
> One question, is this problem only happening for those running
> STABLE with the 6.6.6 merged driver?
>
> We found the problem does not seem to happen on 7.0.
>
> Right now my suspicion is that the FAST irq handling is
> again causing a problem. I am experimenting with variations
> to the code today to be sure whats going on, and hopefully
> fixing it.
>
I see it on HEAD and releng7.
Sam
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 04:05:01 2007
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Cc: "gnn@freebsd.org" <gnn@freebsd.org>,
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FreeBSD Stable List <freebsd-stable@freebsd.org>,
"freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject: Re: RFC: Evolution of the em driver
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Jack Vogel wrote:
> On 10/30/07, gnn@freebsd.org <gnn@freebsd.org> wrote:
>> At Mon, 29 Oct 2007 10:45:17 -0700,
>> Jack Vogel wrote:
>>> I have an important decision to make and I thought rather than just make
>>> it and spring it on you I'd present the issues and see what opinions were.
>>>
>>> Our newer hardware uses new features that, more and more, require
>>> parallel code paths in the driver. For instance, the 82575 (Zoar) uses
>>> what are called 'advanced descriptors', this means different TX path.
>>> The 7.0 em driver has this support in it, it just uses a function pointer
>>> to handle it.
>>>
>>> When I add in multiqueue/RSS support it will add even more code
>>> that functions this way.
>>>
>>> What the Linux team did was to split the newer code into a standalone
>>> driver, they call it 'igb'. I had originally resisted doing this, but with
>>> the development I have been working on the past month I am starting
>>> to wonder if it might not be best to follow them.
>>>
>>> I see 3 possibilities and I'd like feedback, which would you prefer if
>>> you have a preference and why.
>>>
>>> First, keep the driver as is and just live with multiple code paths
>>> and features, possibly #ifdef'ed as they appear.
>>>
>>> Second, split the driver as Linux has into em and igb. The added
>>> question then is how to split it, Linux made the line the use of
>>> advanced descriptors, so Zoar and after, but I could also see a
>>> case for having everything PCI-E/MSI capable being in the new
>>> driver.
>>>
>>> Third, sort of a half-way approach, split up code but not the
>>> driver, in other words offer different source files that can be
>>> compiled into the driver, so you could have the one big jumbo
>>> driver with all in there, or one that will only work with a subset
>>> of adapters. This one would probably be the most work, because
>>> its a new approach.
>> As you're the main maintainer it's your choice. Whatever is easiest
>> for you and gives us the most readable code.
>
> Thanks, I know its my choice, I was just looking for opinions about
> the options I had to chose from :)
>
> I think I've had enough feedback to decide, I think the seperate
> driver is the direction. I need to give some thought to where to
> make the split.
>
> Thanks for everyone's feedback.
>
> Jack
There are too many examples to name in every OS of drivers that have
tried in vain to support diverging hardware evolutionary paths. if_dc
and if_bge are great (or horrible, depending on your perspective)
examples of this in FreeBSD. My vote is to nip the madness in the bud
on if_em and have two (or more drivers) that support their hardware
families well instead of one driver that supports multiple families
marginally.
Scott
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Date: Wed, 31 Oct 2007 07:57:55 +0100
From: Goran Lowkrantz <goran.lowkrantz@ismobile.com>
To: Jack Vogel <jfvogel@gmail.com>, freebsd-net@freebsd.org,
FreeBSD Stable List <freebsd-stable@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>
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Subject: Re: em watchdog problem
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Hi Jack,
In my case, yes but only under higher loads, specifically when Amanda=20
started receive the backup data. At lower loads, like the check or sizing,=20
no problems.
Best regards,
G=F6ran L
--On Tuesday, October 30, 2007 10:16 -0700 Jack Vogel <jfvogel@gmail.com>=20
wrote:
> This morning I had an idea about what the source of the watchdog
> problem is. Also, we have repro'd at least one type of watchdog
> inhouse.
>
> One question, is this problem only happening for those running
> STABLE with the 6.6.6 merged driver?
>
> We found the problem does not seem to happen on 7.0.
>
> Right now my suspicion is that the FAST irq handling is
> again causing a problem. I am experimenting with variations
> to the code today to be sure whats going on, and hopefully
> fixing it.
>
> Cheers,
>
> Jack
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
................................................... the future isMobile
Goran Lowkrantz <goran.lowkrantz@ismobile.com>
System Architect, isMobile AB
Sandviksgatan 81, PO Box 58, S-971 03 Lule=E5, Sweden
Mobile: +46(0)70-587 87 82
http://www.ismobile.com ...............................................
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 08:00:14 2007
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From: Byung-Hee HWANG <bh@izb.knu.ac.kr>
To: Peter Jeremy <peterjeremy@optushome.com.au>
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Subject: Re: In Memoriam: Jun-ichiro Hagino
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On Wed, 31 Oct 2007 10:18:40 +1100, Peter Jeremy wrote:
> A recent posting in BUGTRAQ[1] has announced that Itojun has passed
> away. Itojun was a past FreeBSD committer and very active in KAME and
> the IPv6 world. No details of his passing were in the BUGTRAQ posting
> but some information in Japanese is available at
> http://www.hoge.org/~koyama/itojun.txt
>
> [1] http://www.securityfocus.com/archive/1/483015/30/0/threaded
Rest in piece Itojun.
Respect,
Byung-Hee
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
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Subject: Re: em watchdog problem
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On 31/10/2007, Jack Vogel <jfvogel@gmail.com> wrote:
> This morning I had an idea about what the source of the watchdog
> problem is. Also, we have repro'd at least one type of watchdog
> inhouse.
>
> One question, is this problem only happening for those running
> STABLE with the 6.6.6 merged driver?
This doesn't happen for me on my local testing network with RELENG_6
built from October 14 sources.
These boxes generally throw about 350mbit in/out of TCP between each other.
I've recently upgraded one to RELENG_7 to test so I can't provide a
dmesg+interrupt count for it. Note that under load the interrupts are
around 8000/sec for em0 but I haven't run the tests for a few days and
thus the "rate" figure for em0 is a bit misleading.
wendy# vmstat -i
interrupt total rate
irq1: atkbd0 76 0
irq6: fdc0 1 0
irq15: ata1 46 0
irq17: em0 fwohci0 1503419876 1866
irq19: atapci1 766603 0
irq20: ohci0 ohci+ 0 0
cpu0: timer 1611280255 2000
Total 3115466857 3867
pciconf for the ethernet card:
em0@pci1:6:0: class=0x020000 card=0x13768086 chip=0x107c8086 rev=0x05 hdr=0x00
vendor = 'Intel Corporation'
device = 'PRO/1000 GT'
class = network
subclass = ethernet
Dmesg:
Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-STABLE #6: Sun Oct 14 23:51:09 WST 2007
adrian@wendy.home.cacheboy.net:/usr/obj/usr/src/sys/WENDY
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Opteron(tm) Processor 140 (1400.01-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0xf58 Stepping = 8
Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow!+,3DNow!>
real memory = 2147221504 (2047 MB)
avail memory = 2096099328 (1998 MB)
ACPI APIC Table: <A M I OEMAPIC >
ioapic0 <Version 1.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <A M I OEMRSDT> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
cpu0: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <NVIDIA nForce3 AGP Controller> mem 0xf0000000-0xf7ffffff at
device 0.0 on pci0
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
pci0: <serial bus, SMBus> at device 1.1 (no driver attached)
ohci0: <nVidia nForce3 USB Controller> mem 0xfebfd000-0xfebfdfff irq
20 at device 2.0 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: SMM does not respond, resetting
usb0: <nVidia nForce3 USB Controller> on ohci0
usb0: USB revision 1.0
uhub0: nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1: <nVidia nForce3 USB Controller> mem 0xfebfe000-0xfebfefff irq
20 at device 2.1 on pci0
ohci1: [GIANT-LOCKED]
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb1: <nVidia nForce3 USB Controller> on ohci1
usb1: USB revision 1.0
uhub1: nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
ehci0: <NVIDIA nForce3 USB 2.0 controller> mem 0xfebffc00-0xfebffcff
irq 20 at device 2.2 on pci0
ehci0: [GIANT-LOCKED]
usb2: EHCI version 1.0
usb2: companion controllers, 4 ports each: usb0 usb1
usb2: <NVIDIA nForce3 USB 2.0 controller> on ehci0
usb2: USB revision 2.0
uhub2: nVidia EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub2: 6 ports with 6 removable, self powered
nve0: <NVIDIA nForce MCP3 Networking Adapter> port 0xec00-0xec07 mem
0xfebfc000-0xfebfcfff irq 21 at device 5.0 on pci0
nve0: Ethernet address 00:0c:6e:98:55:5c
miibus0: <MII bus> on nve0
rlphy0: <RTL8201L 10/100 media interface> on miibus0
rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
nve0: Ethernet address: 00:0c:6e:98:55:5c
pci0: <multimedia, audio> at device 6.0 (no driver attached)
atapci0: <nVidia nForce3 UDMA133 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 8.0 on
pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pcib1: <ACPI PCI-PCI bridge> at device 10.0 on pci0
pci1: <ACPI PCI bus> on pcib1
em0: <Intel(R) PRO/1000 Network Connection Version - 6.6.6> port
0xdc00-0xdc3f mem 0xfc9e0000-0xfc9fffff,0xfc9c0000-0xfc9dffff irq 17
at device 6.0 on pci1
em0: Ethernet address: 00:0e:0c:b9:42:d8
atapci1: <Promise PDC20378 SATA150 controller> port
0xd800-0xd83f,0xd400-0xd40f,0xd000-0xd07f mem
0xfc99f000-0xfc99ffff,0xfc960000-0xfc97ffff irq 19 at device 8.0 on
pci1
ata2: <ATA channel 0> on atapci1
ata3: <ATA channel 1> on atapci1
ata4: <ATA channel 2> on atapci1
fwohci0: <Texas Instruments TSB43AB22/A> mem
0xfc99e800-0xfc99efff,0xfc998000-0xfc99bfff irq 17 at device 9.0 on
pci1
fwohci0: OHCI version 1.10 (ROM=1)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:e0:18:00:00:2e:05:96
fwohci0: Phy 1394a available S400, 2 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:e0:18:2e:05:96
fwe0: Ethernet address: 02:e0:18:2e:05:96
fwe0: if_start running deferred for Giant
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: BUS reset
fwohci0: node_id=0xc000ffc0, gen=1, CYCLEMASTER mode
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
firewire0: bus manager 0 (me)
pcib2: <ACPI PCI-PCI bridge> at device 11.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pci2: <display, VGA> at device 0.0 (no driver attached)
acpi_button0: <Power Button> on acpi0
fdc0: <floppy drive controller (FDE)> port 0x3f0-0x3f5,0x3f7 irq 6 drq
2 on acpi0
fdc0: [FAST]
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcffff,0xd0000-0xd0fff on isa0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 1400008080 Hz quality 800
Timecounters tick every 1.000 msec
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding
enabled, default to accept, logging disabled
acd0: CDRW <MATSHITA CD-RW CW-7586/1A17> at ata1-master PIO4
ad4: 76319MB <WDC WD800JD-00MSA1 10.01E01> at ata2-master SATA150
hwpmc: TSC/1/0x20<REA> K8/4/0x1ff<INT,USR,SYS,EDG,THR,REA,WRI,INV,QUA>
Trying to mount root from ufs:/dev/ad4s1a
HTH,
--
Adrian Chadd - adrian@freebsd.org
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 09:14:54 2007
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Date: Wed, 31 Oct 2007 18:14:39 +0900
From: Jun Murai <jun@wide.ad.jp>
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Subject: itojun
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Dear Friends,
I am regretful to pass along the sad news that Itojun (Dr. Junichiro
Hagino) passed away on October 29, 2007. He was 37 years old. The WIDE
community would like to send our condolences to his family and friends.
Itojun has been an important member of the WIDE community, making
numerous worldwide contributions in the field of network computing,
especially on IPv6 and the Internet protocol area. He has had an
important influence on each of our experiences in the WIDE project,
IETF, and on the Internet community. We will miss him terribly.
The family is planning a memorial service at Rinkai Saijo (Tokyo, Japan
http://www.rinkaisaijo.or.jp/info/index.html) on November 6th from
6:00pm, and a funeral service the following day on November 7th from
11:00am. We have received warm requests from many wishing if they can
be of any help. We are presently coordinating efforts with Itojun$B!G(Bs
family to see how we may be of assistance during this difficult time. On
behalf of the Internet community we will be arranging for flowers to be
sent, but as many of Itojun$B!G(Bs close colleagues may be overseas, we
understand it may be difficult to attend or arrange for flowers from
abroad. As an alternative suggestion we would like to accept warm
messages to the family and/or memorable events with Itojun that you may
want to share. We will deliver these messages to Itojun at the memorial
and funeral service. Please send these messages to
message_for_itojun@wide.ad.jp.
Our deepest sympathies are with Itojun$B!G(Bs family for this loss. As a
community, I hope we can come together and support one another in fondly
remembering Itojun.
Jun Murai
On behalf of WIDE Project
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To: linimon@FreeBSD.org, freebsd-bugs@FreeBSD.org, freebsd-net@FreeBSD.org
From: linimon@FreeBSD.org
Cc:
Subject: Re: kern/117711: [rpc] rpcbind binds to all interfaces on random
ports even when using the -h flag
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Old Synopsis: rpcbind binds to all interfaces on random ports even when using the -h flag
New Synopsis: [rpc] rpcbind binds to all interfaces on random ports even when using the -h flag
Responsible-Changed-From-To: freebsd-bugs->freebsd-net
Responsible-Changed-By: linimon
Responsible-Changed-When: Wed Oct 31 09:42:33 UTC 2007
Responsible-Changed-Why:
Over to maintainer(s).
http://www.freebsd.org/cgi/query-pr.cgi?pr=117711
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Date: Wed, 31 Oct 2007 11:10:02 GMT
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To: freebsd-net@FreeBSD.org
From: Remko Lodder <remko@FreeBSD.org>
Cc:
Subject: Re: misc/117711: rpcbind binds to all interfaces on random ports
even when using the -h flag
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The following reply was made to PR kern/117711; it has been noted by GNATS.
From: Remko Lodder <remko@FreeBSD.org>
To: Carlos Eduardo Monti <slaytanic@gmail.com>
Cc: freebsd-gnats-submit@FreeBSD.org,
Matteo Riondato <matteo@freebsd.org>
Subject: Re: misc/117711: rpcbind binds to all interfaces on random ports
even when using the -h flag
Date: Wed, 31 Oct 2007 10:55:13 +0100
Carlos Eduardo Monti wrote:
>> Description:
> rpcbind opens two sockets on all interfaces on random ports when specified the -h flag, one socket for udp4 and one for udp6.
>
>> How-To-Repeat:
> overnight# sockstat | grep rpcbind
> overnight# rpcbind -h 192.168.0.3
> overnight# sockstat | grep rpcbind
> root rpcbind 2696 4 udp6 *:* *:*
> root rpcbind 2696 5 stream /var/run/rpcbind.sock
> root rpcbind 2696 6 udp6 ::1:111 *:*
> root rpcbind 2696 7 udp6 *:* *:*
> root rpcbind 2696 8 udp6 *:617 *:*
> root rpcbind 2696 9 tcp6 ::1:111 *:*
> root rpcbind 2696 10 tcp6 *:* *:*
> root rpcbind 2696 11 udp4 127.0.0.1:111 *:*
> root rpcbind 2696 12 udp4 192.168.0.3:111 *:*
> root rpcbind 2696 13 udp4 *:944 *:*
> root rpcbind 2696 14 tcp4 127.0.0.1:111 *:*
> root rpcbind 2696 15 tcp4 192.168.0.3:111 *:*
> overnight# killall rpcbind
> overnight# rpcbind -h 192.168.0.3
> overnight# sockstat | grep rpcbind
> root rpcbind 2701 4 udp6 *:* *:*
> root rpcbind 2701 5 stream /var/run/rpcbind.sock
> root rpcbind 2701 6 udp6 ::1:111 *:*
> root rpcbind 2701 7 udp6 *:* *:*
> root rpcbind 2701 8 udp6 *:943 *:*
> root rpcbind 2701 9 tcp6 ::1:111 *:*
> root rpcbind 2701 10 tcp6 *:* *:*
> root rpcbind 2701 11 udp4 127.0.0.1:111 *:*
> root rpcbind 2701 12 udp4 192.168.0.3:111 *:*
> root rpcbind 2701 13 udp4 *:804 *:*
> root rpcbind 2701 14 tcp4 127.0.0.1:111 *:*
> root rpcbind 2701 15 tcp4 192.168.0.3:111 *:*
>
Isn't this just behaviour of RPCbind which selects some random sockets
by default? the -h is used to bind it to a specific IP address, not to
bind it to specific ports (as far as i can recall), so what you are
printing is really what I would expect it to be.
Matteo, you worked on this recently, can you shed a light on this? and
if my reasoning above is correct, can you please close the ticket since
it's desired behaviour?
Thanks
remko
--
Kind regards,
Remko Lodder ** remko@elvandar.org
FreeBSD ** remko@FreeBSD.org
/* Quis custodiet ipsos custodes */
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 11:13:46 2007
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From: Jeremy Chadwick <koitsu@FreeBSD.org>
To: Scott Long <scottl@samsco.org>
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Cc: "gnn@freebsd.org" <gnn@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>,
Jack Vogel <jfvogel@gmail.com>,
"freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject: Re: RFC: Evolution of the em driver
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On Tue, Oct 30, 2007 at 09:06:39PM -0600, Scott Long wrote:
> There are too many examples to name in every OS of drivers that have
> tried in vain to support diverging hardware evolutionary paths. if_dc
> and if_bge are great (or horrible, depending on your perspective)
> examples of this in FreeBSD. My vote is to nip the madness in the bud
> on if_em and have two (or more drivers) that support their hardware
> families well instead of one driver that supports multiple families
> marginally.
For what it's worth, I agree with Scott. I'd rather see a new and
separate driver (presumably igb(4)) than a "hacked up" em(4) driver
trying to handle tons of IC revisions. A good example of the insanity
the latter causes is nve(4) vs. nfe(4). :-)
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 11:15:13 2007
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: em watchdogs - OS involvement
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Jack Vogel wrote:
> Things just keep getting stranger... its no wonder I didn't see this...
>
> I had been trying to repro the watchdog on a machine in my cube at work
> without success, but in the test Lab they were successful. I scratched my
> head for a while wondering why...
>
> But then I realized I had the Sept snapshot in my cube, reinstalled it to
> the Oct snapshot and now it watchdogs like a champ too.....
>
> Another bit of data, if I define DEVICE_POLLING on the Oct. snap it
> also will work.
>
> SOOOOO, what changes were made to interrupts between Sept and
> October, something I need to do perhaps that wasnt done??
>
> Any ideas??
Shared irq is a very big problem w/FAST_INTR seems to be. There are a
lot of drops if ethernet shares IRQ w/UHCI e.g.
Maybe you've seen this issue.
>
> Jack
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 13:57:24 2007
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From: Matus Harvan <mharvan@inf.ethz.ch>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
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Cc: freebsd-net@freebsd.org, Brooks Davis <brooks@freebsd.org>,
Max Laier <max@love2party.net>
Subject: Re: icmp echo_user
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On Wed, Oct 31, 2007 at 01:47:09AM +0100, Matus Harvan wrote:
[...]
> In case icmpechouser is enabled
>=20
> * should the packet be dropped if it was multicast/broadcast and
> icmpbcastecho is disabled?
>=20
> I guess yes.
Thinking about this again, I think the bmcastecho meaning is about
generating repleis rather than receiving requests. From icmp(4):
bmcastecho (boolean) Enable/disable ICMP replies received via bro=
ad-
cast or multicast. Defaults to false.
Hence, I don't think that the packet should be dropped even if
icmpbcastecho is disabled.
Hence, I think it would be OK to keep the 'goto raw' at the beginning
(as it was in the patch I have sent) rather than moving it down to the
'goto reflect'.
Matus
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From: Matus Harvan <mharvan@inf.ethz.ch>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
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Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>,
Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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On Mon, Oct 29, 2007 at 07:49:47PM +0000, Bruce M. Simpson wrote:
> Brooks Davis wrote:
>> While I think this idea has some merit, I think we specifically want
>> the current wildcard ability to allow for a system that requires
>> minimal configuration. The problem with a range is that it doesn't
>> allow disjoint sets and it requires that if you really do want all the
>> ports you need to produce a list of currently allocated ports to avoid
>> allocating. A more (over)engineered solution holds some attraction, but
>> I'm not yet convinced the fact that it could exist precludes the current
>> implementation.
>=20
> Actually I concur with you on this point, based solely on the disjoint se=
ts=20
> point.
A slightly different argument:
What if you set a certain port range for catchall and an application
then tries to bind to one of these ports? Should the whole port range
be reserved for the catchall socket or should an application be
alllowed to "take" on of the ports. The latter seems more practical to
me. But then there would be no point in changing from the wildcard
ability to a port range functionality.
> Another vector of attack would be to put the relay functionality into PF,=
=20
> which can do the packet matching. However this of course suffers from the=
=20
> problem that if you just want a plain old UDP socket for mtund, you won't=
=20
> get that unless you go to the inpcb layer anyway.
>=20
> But who says mtund needs to use sockets for its traffic relay? There is=
=20
> definite appeal in *not* doing it in the socket layer at all -- an=20
> adaptation of pf's log socket may suffice...
For UDP catchall this would suffice. However, we should also prevent
the kernel from sending back a (icmp) notification that the port in
question was closed. How could this be done with pf's log socket or
bpf? Blackhole functionality would have to be enabled? This would then
seem to me more of a hack than doing this in the socket layer.
Matus
--5xSkJheCpeK0RUEJ
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From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 15:12:48 2007
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To: matteo@FreeBSD.org, freebsd-net@FreeBSD.org, matteo@FreeBSD.org
From: matteo@FreeBSD.org
Cc:
Subject: Re: kern/117711: [rpc] rpcbind binds to all interfaces on random
ports even when using the -h flag
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Synopsis: [rpc] rpcbind binds to all interfaces on random ports even when using the -h flag
Responsible-Changed-From-To: freebsd-net->matteo
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Responsible-Changed-When: Mer 31 Ott 2007 15:12:25 UTC
Responsible-Changed-Why:
I'll take care of this PR
http://www.freebsd.org/cgi/query-pr.cgi?pr=117711
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 15:50:45 2007
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Subject: Correct way to enable ipv6 and sixxs-aiccu?
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Hi all!
While brushing up my ipv6 knowledge i ran into an issue with sixxs-aiccu
and configuring ipv6 in rc.conf:
I have manually configured my gateway to route ipv6 to my internal
network, and this works without problems.
But as soon as i have ipv6_gateway_enable="YES" in /etc/rc.conf rtadvd
doesn't set an ipv6 address on my vr0 interface. (Btw. the only interface
i have on the machine.)
After digging around a bit i noticed that /etc/rc.d/network_ipv6 sets
net.inet6.ip6.accept_rtadv=0 and if i manually set
net.inet6.ip6.accept_rtadv=1 and then restart rtadvd things work and i get
an address on my interface.
Since i guess dissabling accept_rtadv is done for a reason i wonder what
is the correct way to setup ipv6 in /etc/rc.conf is?
/Chris
--
http://www.arnold.se/
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From: Peter Jeremy <peterjeremy@optushome.com.au>
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Subject: Re: RFC: Evolution of the em driver
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On Wed, Oct 31, 2007 at 01:16:39AM -0700, Jeremy Chadwick wrote:
>For what it's worth, I agree with Scott. I'd rather see a new and
>separate driver (presumably igb(4)) than a "hacked up" em(4) driver
>trying to handle tons of IC revisions. A good example of the insanity
>the latter causes is nve(4) vs. nfe(4). :-)
<metoo>A separate driver is probably cleaner.</metoo>
I'll just make the comment that if a separate driver is written, there
needs to be a clear way for an end user to identify what driver is
needed/preferred for his chipset. We already have cases like
re(4)/rl(4) and sym(4)/ncr(4) where some chips are supported by two
drivers - though generally only one driver fully supports the chip.
This sort of thing is confusing for end users.
--=20
Peter
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Subject: Proposed #ifdef change to em
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I have found that the FAST interrupt handling is implicated
in the watchdog resets that I have seen.
What I plan to do is revert to the way 6.2 had things, meaning
that FAST interrupts will be available but defined off by default.
I wanted to know if anyone has an issue with this. And more
importantly, I have personally not seen this problem on 7, but
I could set up #ifdef's in that driver to be the same way.
What does everyone think?
Jack
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 16:35:41 2007
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: RFC: Evolution of the em driver
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On 10/31/07, Peter Jeremy <peterjeremy@optushome.com.au> wrote:
> On Wed, Oct 31, 2007 at 01:16:39AM -0700, Jeremy Chadwick wrote:
> >For what it's worth, I agree with Scott. I'd rather see a new and
> >separate driver (presumably igb(4)) than a "hacked up" em(4) driver
> >trying to handle tons of IC revisions. A good example of the insanity
> >the latter causes is nve(4) vs. nfe(4). :-)
>
> <metoo>A separate driver is probably cleaner.</metoo>
>
> I'll just make the comment that if a separate driver is written, there
> needs to be a clear way for an end user to identify what driver is
> needed/preferred for his chipset. We already have cases like
> re(4)/rl(4) and sym(4)/ncr(4) where some chips are supported by two
> drivers - though generally only one driver fully supports the chip.
> This sort of thing is confusing for end users.
Yes, this is a good point, and when I'm done I will make sure that
only the appropriate ID's will work on a particular driver so this
kind of thing does not happen.
Jack
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 16:41:02 2007
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: Proposed #ifdef change to em
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Jack Vogel wrote:
> I have found that the FAST interrupt handling is implicated
> in the watchdog resets that I have seen.
>
> What I plan to do is revert to the way 6.2 had things, meaning
> that FAST interrupts will be available but defined off by default.
>
> I wanted to know if anyone has an issue with this. And more
> importantly, I have personally not seen this problem on 7, but
> I could set up #ifdef's in that driver to be the same way.
>
> What does everyone think?
>
> Jack
Let's give it another couple of days to work out the real problem
before we throw in the towel. Follow-ups in private...
Scott
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From: Byung-Hee HWANG <bh@izb.knu.ac.kr>
To: Christopher Arnold <chris@arnold.se>
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Cc: freebsd-net@freebsd.org
Subject: Re: Correct way to enable ipv6 and sixxs-aiccu?
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Hi, i am from the last Stone Age.
On Wed, 2007-10-31 at 15:49 +0100, Christopher Arnold wrote:
> Hi all!
>
> While brushing up my ipv6 knowledge i ran into an issue with sixxs-aiccu
> and configuring ipv6 in rc.conf:
>
> I have manually configured my gateway to route ipv6 to my internal
> network, and this works without problems.
> But as soon as i have ipv6_gateway_enable="YES" in /etc/rc.conf rtadvd
> doesn't set an ipv6 address on my vr0 interface. (Btw. the only interface
> i have on the machine.)
Well, we don't know how to you configure your IPv6 router in manual. So
you'd better show us the information like your manual scripts if you
want to give more correct advices ;;
> After digging around a bit i noticed that /etc/rc.d/network_ipv6 sets
> net.inet6.ip6.accept_rtadv=0 and if i manually set
> net.inet6.ip6.accept_rtadv=1 and then restart rtadvd things work and i get
> an address on my interface.
Actually i can understand the your crazy struggling.
> Since i guess dissabling accept_rtadv is done for a reason i wonder what
> is the correct way to setup ipv6 in /etc/rc.conf is?
Do you have native IPv6 addresses? If you do, i am proud of you. Anyway
you need to have a look IPv6 section of FreeBSD Handbook, rtadvd(8) and
rtadvd.conf(5). It will give you help. And you need to study IPv6 stuff
because it is not as easy as it seems, AFAIK. I mean you can solve your
matters if you study more.
Sincerely,
--
"He's a responsible man in his own way."
-- Michael Corleone, "Chapter 25", page 363
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 17:50:27 2007
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Cc: net@freebsd.org
Subject: Re: Marvell chipsets on 8-CURRENT and XP x64 won't talk with one
another
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Garrett Cooper wrote:
> Tom Judge wrote:
>> Garrett Cooper wrote:
>>> Mike Silbersack wrote:
>>>>
>>>> On Fri, 19 Oct 2007, Garrett Cooper wrote:
>>>>
>>>>>> Just to clarify, how are the two hooked together? Is it over
>>>>>> gigabit switch, a 10mbps hub, or directly cabled together?
>>>>>>
>>>>>> -Mike
>>>>>
>>>>> Sure. They're both connected over a gigabit switch, but the
>>>>> Windows driver's kind of sketchy because it keeps on switching
>>>>> between 100MBit and 1GBit. I haven't really paid that much
>>>>> attention to what speed the FreeBSD msk driver is registering at.
>>>>> -Garrett
>>>>
>>>> Ah ha!
>>>>
>>>> I had the flopping between 100mbps and 1gbps problem with some
>>>> Intel cards once - some of the machines in the lab were fine,
>>>> others kept switching back and forth. We eventually narrowed it
>>>> down to the cables we had hand-made; some of them just weren't up
>>>> to snuff, and the NIC apparently decided that it had to go back
>>>> down to 100.
>>>>
>>>> I think you should switch your gigabit switch out for a 100mbps
>>>> switch and see if the network becomes more reliable.
>>>>
>>>> -Mike
>>>
>>> I think I've discovered what the issue is. I believe the problem
>>> lies in the fact that the FreeBSD Marvell chipset driver (msk) isn't
>>> up to speed with the Gigabit transferring on my particular
>>> chipset(s). That's why transfers were most likely working with my
>>> laptop (Apple with 100MBit Broadcom) vs my desktop (Asus MB with
>>> another Marvell chipset driver) and another laptop (Dell laptop with
>>> Broadcom Gigabit).
>>> How do I tell ifconfig via rc.conf to downgrade the max speed to
>>> 100MBit duplex?
>>> Thanks,
>>> -Garrett
>>
>> You would need to hard code the interface configuration on the switch
>> and box. This is only possible if you have a managed switch and the
>> methods on the switch are manufacturer and model dependent.
>>
>> On FreeBSD however it is trivial for example "ifconfig em0 media
>> 100baseTX mediaopt full-duplex".
>>
>> This will disable speed negotiation and therefore must be configured
>> at both ends of the link.
>>
>> Tom
>
> Well, this is interesting. I used a crappy switch (100MBit SOHO
> switch), in place of my Netgear non-managed gigabit switch, and the
> same thing occurred on the XP x64 machine.
>
> I may have forgotten to mention that at one time both machines were
> running XP variants of some sort (x64 and x86), and they worked
> perfectly fine with one another >_>...
>
> Here's some additional info:
>
> optimus# arp -a
> ? (192.168.0.1) at (incomplete) on msk0 [ethernet] # Dummy gateway
> ? (192.168.0.42) at 00:11:24:2f:15:bc on msk0 [ethernet] # iBook
> (broadcom adapter)
> ? (192.168.0.47) at 00:1a:92:d2:f7:f6 on msk0 [ethernet] # Win XP x64
> machine
> ? (192.168.0.255) at ff:ff:ff:ff:ff:ff on msk0 permanent [ethernet]
> optimus# ifconfig msk0
> msk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500
> options=9a<TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
> ether 00:1b:fc:45:9b:5c
> inet 192.168.0.45 netmask 0xffffff00 broadcast 255.255.255.0
> media: Ethernet autoselect (100baseTX <full-duplex,flag0,flag1>)
> status: active
> ifconfig_msk0="inet 192.168.0.45 broadcast 255.255.255.0"
> # media 100baseTX mediaopt full-duplex"
> defaultrouter="192.168.0.1"
> optimus# netstat -nr
> Routing tables
>
> Internet:
> Destination Gateway Flags Refs Use Netif
> Expire
> default 192.168.0.1 UGS 0 0 msk0
> 127.0.0.1 127.0.0.1 UH 0 12 lo0
> 192.168.0.0/24 link#1 UC 0 0 msk0
> 192.168.0.1 link#1 UHLW 2 0 msk0
> 192.168.0.42 00:11:24:2f:15:bc UHLW 1 179 msk0
> 1028
> 192.168.0.47 00:1a:92:d2:f7:f6 UHLW 1 21 msk0
> 1162
> 192.168.0.255 ff:ff:ff:ff:ff:ff UHLWb 1 49 msk0
>
> arp and everything's show the correct information on the XP end, even
> after I removed the 'dummy gateway' on both machines..
>
> Next course of action? Snort? tcpdump?
>
> Thanks,
> -Garrett
I'm running tcpdump on my Mac and I noted a lot of 'bad checksums'
(0x081c was the official error in all cases), then consulted the msk
driver. It appears that there's a bug with Yukon II chipsets with the
hardware checksumming and I wonder whether or not the chipset that I
have is affected by this issue as well.
I'll provide my chipset/model info in my next reply (can't access it
from this PC).
-Garrett
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 19:20:54 2007
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Cc: freebsd-net@freebsd.org
Subject: Re: Correct way to enable ipv6 and sixxs-aiccu?
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On Thu, 1 Nov 2007, Byung-Hee HWANG wrote:
> On Wed, 2007-10-31 at 15:49 +0100, Christopher Arnold wrote:
>> While brushing up my ipv6 knowledge i ran into an issue with sixxs-aiccu
>> and configuring ipv6 in rc.conf:
>>
>> I have manually configured my gateway to route ipv6 to my internal
>> network, and this works without problems.
>> But as soon as i have ipv6_gateway_enable="YES" in /etc/rc.conf rtadvd
>> doesn't set an ipv6 address on my vr0 interface. (Btw. the only interface
>> i have on the machine.)
>
> Well, we don't know how to you configure your IPv6 router in manual. So
> you'd better show us the information like your manual scripts if you
> want to give more correct advices ;;
>
Ok to be totally clear:
# more /etc/rtadvd.conf
vr0:\
:addr="2001:16d8:ff50::":prefixlen#64:
Dosn't Work:
/etc/rc.conf: ipv6_gateway_enable="YES"
After boot i execute "rtadvd vr0" as root.
Works:
/etc/rc.conf: ipv6_gateway_enable="NO"
/etc/syscontrol: net.inet6.ip6.forwarding=1
After boot i execute "rtadvd vr0" as root.
The difference i belive is the setting of net.inet6.ip6.accept_rtadv=0 in
/etc/rc.d/network_ipv6 .
>> After digging around a bit i noticed that /etc/rc.d/network_ipv6 sets
>> net.inet6.ip6.accept_rtadv=0 and if i manually set
>> net.inet6.ip6.accept_rtadv=1 and then restart rtadvd things work and i get
>> an address on my interface.
>
>> Since i guess dissabling accept_rtadv is done for a reason i wonder what
>> is the correct way to setup ipv6 in /etc/rc.conf is?
>
> Do you have native IPv6 addresses? If you do, i am proud of you. Anyway
> you need to have a look IPv6 section of FreeBSD Handbook, rtadvd(8) and
> rtadvd.conf(5). It will give you help. And you need to study IPv6 stuff
> because it is not as easy as it seems, AFAIK. I mean you can solve your
> matters if you study more.
>
Im trying as we speak, just wanted some input on how things are supposed
to work.
Im running /usr/ports/net/sixxs-aiccu to bring up the tunnel and my
adresses are assigned from them. www.sixxs.net for more information.
The tunnel works all the time (on the tun0 interface) so there isn't a
problem with my ipv6 connectivity. So i guess my question is: "Why is
net.inet6.ip6.accept_rtadv=0 in /etc/rc.d/network_ipv6 and how am i
supposed to configure ipv6 in /etc/rc.conf?"
PS: sixxs-aiccu is run from /usr/local/etc/rc.d/ so the reason things
doesn't work could be related to the fact that my tunnel goes live late in
the boot.
/Chris
--
http://www.arnold.se/
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Cc: freebsd-net@freebsd.org, Brooks Davis <brooks@freebsd.org>,
Max Laier <max@love2party.net>
Subject: Re: TCP listenall
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On Sat, Oct 27, 2007 at 04:55:15AM +0100, Bruce M. Simpson wrote:
> Matus Harvan wrote:
>> Hi,
>> I was wondering if I could get some feedback about the patch and
>> whether others think it could be committed. A slightly update version
>> of the patch is at the end of this email.
>> =20
>=20
> I have mixed feelings about this patch.
>=20
> The idea of a TCP socket which magically loses its TCP semantics is=20
> unattractive -- SOCK_RAW is traditionally where we've put things which=20
> don't fit the rest of the BSD socket API -- however in this case I don't=
=20
> see we have much choice, if what we desire is the ability for a client to=
=20
> establish a connection to any ephemeral port with the mtund returning fro=
m=20
> an accept() as usual.
>=20
> We are bending the rules of the usual TCP semantics here, but that is OK=
=20
> because if we directed tlistenall to be a raw IP socket, we'd need a way =
to=20
> say to TCP, 'I'd like to create a socket which is already in SYN_RCVD sta=
te=20
> with a SYN whose mbuf has now gone to lunch', assuming we wish to create=
=20
> TCP streams business as usual.
Exactly.
[...]
> How will inp_tlistenall appear in netstat output? Perhaps assigning a=20
> LISTEN_ALL state would be helpful for an administrator to clearly see tha=
t=20
> a listenall socket is active? Perhaps checking for TCP_LISTENALL set on a=
n=20
> unbound socket in tcp_usr_listen() when listen() is called is the way to =
go=20
> instead of, or in addition to, using inp_tlistenall?
I think there can be only one LISTEN_ALL socket. Hence, inp_tlistenall
should be ok. Furthermore, having inp_tlistenall allows me to
immediately know which is the listenall socket without having to
search through all the sockets.
Currently, the user has to setsockopt() TCP_LISTENALL on the socket
after calling listen(). One disadvanatage is that the user has to
select a port when calling listen(). However, it minimizes the changes
needed to get the listenall funcitonality. Are you suggesting that the
setsockopt() could be called first and the listen() would follow?
With the state for netstat, wouldn't this require adding the
LISTEN_ALL state to the TCPS_* states in sys/netinet/tcp_fsm.h:45? If
yes, then this might require more modifications.
Matus
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From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 21:51:42 2007
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From: Matus Harvan <mharvan@inf.ethz.ch>
To: "Bruce M. Simpson" <bms@FreeBSD.org>
Message-ID: <20071031211721.GA2086@styx.ethz.ch>
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Cc: freebsd-net@freebsd.org, Brooks Davis <brooks@freebsd.org>,
Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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On Sat, Oct 27, 2007 at 04:21:23AM +0100, Bruce M. Simpson wrote:
> Matus Harvan wrote:
>> Hi,
>>=20
>> I was wondering if I could get some feedback about the patch and
>> whether others think it could be committed.
>> =20
>=20
> The UDP catchall patch as submitted here clashes with the blackhole=20
> functionality, and also bypasses the update of the protocol statistics an=
d=20
> unreachable port rate limiting. It is not yet suitable for a production=
=20
> kernel.
I do not see how it clashes with the blackhole functionality. If
catchall is enabled then a UDP packet destined for port, which is not
used by any other UDP socket, is passed to rip_input() and would show
up on the raw socket. This happens irrespective of te blackhole
functionality being enabled or not.
I think the protocol statistics for UDP are updated. Which one is
missing?
The catchall feature has its own rate limit, catchallr. This is
different from the unreachable port rate limit. Hence, I don't see a
problem in bypassing the unreachable port rate limiting.
> It probably shouldn't trigger the log_in_vain message, however that log=
=20
> message is misleading anyway (the reception of UDP datagrams destined for=
=20
> unbound ports is not a 'connection attempt').
I think the log_in_vain message is triggered only if the packet is not
passed to the raw socket, i.e., if catchalllim is exhausted. Then the
normal way for processing the packet is followed. Is this what you
have meant with triggering the log_in_vain message?
Matus
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Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>,
"Bruce M. Simpson" <bms@FreeBSD.org>, Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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It's possible using ipfw to mostly implement this, and with an upcoming change, possible
to completely implement this.
the "uid" function of ipfw can act as a "does there exist a socket to which this packet would go?" test.
and a variant of it called "for_me" that I am adding (we use it at work) does this even better.
so, basically,
yyy: skipto xxx ip from any to-me
yyy+1: fwd 127.0.0.1,1234
xxx:
From owner-freebsd-net@FreeBSD.ORG Wed Oct 31 22:36:54 2007
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From: Byung-Hee HWANG <bh@izb.knu.ac.kr>
To: Christopher Arnold <chris@arnold.se>
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Cc: freebsd-net@freebsd.org
Subject: Re: Correct way to enable ipv6 and sixxs-aiccu?
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On Wed, 2007-10-31 at 18:32 +0100, Christopher Arnold wrote:
>
> On Thu, 1 Nov 2007, Byung-Hee HWANG wrote:
>
> > On Wed, 2007-10-31 at 15:49 +0100, Christopher Arnold wrote:
> >> While brushing up my ipv6 knowledge i ran into an issue with sixxs-aiccu
> >> and configuring ipv6 in rc.conf:
> >>
> >> I have manually configured my gateway to route ipv6 to my internal
> >> network, and this works without problems.
> >> But as soon as i have ipv6_gateway_enable="YES" in /etc/rc.conf rtadvd
> >> doesn't set an ipv6 address on my vr0 interface. (Btw. the only interface
> >> i have on the machine.)
> >
> > Well, we don't know how to you configure your IPv6 router in manual. So
> > you'd better show us the information like your manual scripts if you
> > want to give more correct advices ;;
> >
> Ok to be totally clear:
> # more /etc/rtadvd.conf
> vr0:\
> :addr="2001:16d8:ff50::":prefixlen#64:
>
>
> Dosn't Work:
> /etc/rc.conf: ipv6_gateway_enable="YES"
> After boot i execute "rtadvd vr0" as root.
>
> Works:
> /etc/rc.conf: ipv6_gateway_enable="NO"
> /etc/syscontrol: net.inet6.ip6.forwarding=1
>
> After boot i execute "rtadvd vr0" as root.
>
> The difference i belive is the setting of net.inet6.ip6.accept_rtadv=0 in
> /etc/rc.d/network_ipv6 .
>
> >> After digging around a bit i noticed that /etc/rc.d/network_ipv6 sets
> >> net.inet6.ip6.accept_rtadv=0 and if i manually set
> >> net.inet6.ip6.accept_rtadv=1 and then restart rtadvd things work and i get
> >> an address on my interface.
> >
> >> Since i guess dissabling accept_rtadv is done for a reason i wonder what
> >> is the correct way to setup ipv6 in /etc/rc.conf is?
> >
> > Do you have native IPv6 addresses? If you do, i am proud of you. Anyway
> > you need to have a look IPv6 section of FreeBSD Handbook, rtadvd(8) and
> > rtadvd.conf(5). It will give you help. And you need to study IPv6 stuff
> > because it is not as easy as it seems, AFAIK. I mean you can solve your
> > matters if you study more.
> >
> Im trying as we speak, just wanted some input on how things are supposed
> to work.
>
> Im running /usr/ports/net/sixxs-aiccu to bring up the tunnel and my
> adresses are assigned from them. www.sixxs.net for more information.
>
> The tunnel works all the time (on the tun0 interface) so there isn't a
> problem with my ipv6 connectivity. So i guess my question is: "Why is
> net.inet6.ip6.accept_rtadv=0 in /etc/rc.d/network_ipv6 and how am i
> supposed to configure ipv6 in /etc/rc.conf?"
>
> PS: sixxs-aiccu is run from /usr/local/etc/rc.d/ so the reason things
> doesn't work could be related to the fact that my tunnel goes live late in
> the boot.
To solve your matters,
i tested an IPv6 rules by 6to4 with two FreeBSD machines.
1st machine is IPv6 router by rtadv(8). // 4.11-RELEASE
2nd machine is IPv6 host as endhost. // 7.0-BETA1
###
### 1st machine's /etc/rc.conf: Router
###
# IPv6: with rtadvd(8)
ipv6_enable="YES"
ipv6_network_interfaces="auto"
ipv6_gateway_enable="YES"
ipv6_prefix_ed1="2002:9be6:9d5d:0002"
stf_interface_ipv4addr="155.230.157.93"
stf_interface_ipv6_slaid="0001"
ipv6_static_routes="default"
ipv6_route_default="default 2002:c058:6301::"
ipv6_ifconfig_ed1="2002:9be6:9d5d:2:0050:4d00:fe78:5df3 prefixlen 64"
rtadvd_enable="YES"
rtadvd_interfaces="ed1"
###
### 2nd machine's /etc/rc.conf: End-Host
###
# IPv6: getting autoconfigured
# net.inet6.ip6.accept_rtadv=1 (in /etc/sysctl.conf)
ipv6_enable="YES"
bh@viola:~> ping6 -c 3 castle.jp.freebsd.org.
PING6(56=40+8+8 bytes) 2002:9be6:9d5d:2:20b:6aff:fe56:969f -->
2001:218:422:1::15
16 bytes from 2001:218:422:1::15, icmp_seq=0 hlim=49 time=388.469 ms
16 bytes from 2001:218:422:1::15, icmp_seq=1 hlim=49 time=378.904 ms
16 bytes from 2001:218:422:1::15, icmp_seq=2 hlim=49 time=395.308 ms
--- castle.jp.freebsd.org ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 378.904/387.560/395.308/6.728 ms
bh@viola:~>
After all,
two machines works fine each other without any problems.
Then you can figure out later your own answer.
Sincerely,
--
"Godfather, Godfather, save me from death, I beg of you."
-- Genco Abbandando, "Chapter 1", page 46
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From: Jeremie Le Hen <jeremie@le-hen.org>
To: Matus Harvan <mharvan@inf.ethz.ch>
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Cc: freebsd-net@FreeBSD.org, Jeremie Le Hen <jeremie@le-hen.org>
Subject: Re: UDP catchall
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Matus,
On Wed, Oct 31, 2007 at 02:21:04AM +0100, Matus Harvan wrote:
> On Tue, Oct 30, 2007 at 09:04:11PM +0100, Jeremie Le Hen wrote:
> > I can think of a possible implementation of mtund(8) without kernel
> > patching. The next pf(4) import from OpenBSD will likely allow to log
> > to some particular pflog(4) interface (instead of the default pflog0).
> >
> > It will then be possible to create a couple of rules matching one or
> > more ranges of ports and logging to, say, pflog1. Reading on the
> > latter, mtund(8) will immediately open a socket bound to the
> > corresponding port. This is a kind of port knocking. Thanks to TCP
> > retransmission algorithm or mtunc(1)'s cleverness in case of UDP socket,
> > the second packet should hit mtund(8).
> >
> > One downside is that it requires a bunch of configuration in pf.conf(5),
> > so it may not be as straightforward to set up as one may have expected.
> >
> > I don't know TCP internals, it may affect TCP slow start or have some
> > other minor drawbacks. But hey, we're talking about bypassing firewall
> > :-)...
>
> If an RST packet is generated in response to the first TCP SYN packet,
> then the firewall, which we're trying to pass, might decide that the
> port in question is closed and delete/modify the state for the TCP
> connection. If the RST packet hits the sender of the SYN packet then
> there might be no retransmission as the sender would think the TCP
> port is closed.
Yes, sorry. When I was writing this email I had in mind we need to use
the blackhole functionnality but I forgot to mention it.
Regards,
--
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>,
Jack Vogel <jfvogel@gmail.com>
Subject: Re: Proposed #ifdef change to em
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Scott Long wrote:
> Jack Vogel wrote:
>> I have found that the FAST interrupt handling is implicated
>> in the watchdog resets that I have seen.
It's not true. I have seen watchdogs much earlier then FASTINTR.
Also, please note: older driver had a bug preventing watchdog to be
reported (see http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/92895)
>>
>> What I plan to do is revert to the way 6.2 had things, meaning
>> that FAST interrupts will be available but defined off by default.
>>
>> I wanted to know if anyone has an issue with this. And more
>> importantly, I have personally not seen this problem on 7, but
>> I could set up #ifdef's in that driver to be the same way.
>>
>> What does everyone think?
We've a lot of computers w/FASTINTR (more or less patched). They carry
huge traffic. But I don't remember when I have seen last watchdog.
E.g.:
pitman:~# sysctl dev.em.0.stats=1; dmesg | tail -30
dev.em.0.stats: -1 -> -1
[skip]
em0: Excessive collisions = 0
em0: Sequence errors = 0
em0: Defer count = 0
em0: Missed Packets = 44614035
em0: Receive No Buffers = 5082415
em0: Receive Length Errors = 0
em0: Receive errors = 0
em0: Crc errors = 1
em0: Alignment errors = 0
em0: Carrier extension errors = 0
em0: RX overruns = 185231
em0: watchdog timeouts = 0
em0: XON Rcvd = 0
em0: XON Xmtd = 0
em0: XOFF Rcvd = 0
em0: XOFF Xmtd = 0
em0: Good Packets Rcvd = 918214961288
em0: Good Packets Xmtd = 933147667144
pitman:~# uptime
2:54 up 247 days, 5:59, 1 user, load averages: 1,82 1,63 1,55
WBR,
Vladimir
From owner-freebsd-net@FreeBSD.ORG Thu Nov 1 00:31:42 2007
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Cc: Christopher Arnold <chris@arnold.se>, Byung-Hee HWANG <bh@izb.knu.ac.kr>
Subject: Re: Correct way to enable ipv6 and sixxs-aiccu?
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On Wednesday 31 October 2007, Christopher Arnold wrote:
> On Thu, 1 Nov 2007, Byung-Hee HWANG wrote:
> > On Wed, 2007-10-31 at 15:49 +0100, Christopher Arnold wrote:
> >> While brushing up my ipv6 knowledge i ran into an issue with
> >> sixxs-aiccu and configuring ipv6 in rc.conf:
> >>
> >> I have manually configured my gateway to route ipv6 to my internal
> >> network, and this works without problems.
> >> But as soon as i have ipv6_gateway_enable=3D"YES" in /etc/rc.conf
> >> rtadvd doesn't set an ipv6 address on my vr0 interface. (Btw. the
> >> only interface i have on the machine.)
> >
> > Well, we don't know how to you configure your IPv6 router in manual.
> > So you'd better show us the information like your manual scripts if
> > you want to give more correct advices ;;
>
> Ok to be totally clear:
> # more /etc/rtadvd.conf
> vr0:\
>
> :addr=3D"2001:16d8:ff50::":prefixlen#64:
>
> Dosn't Work:
> /etc/rc.conf: ipv6_gateway_enable=3D"YES"
> After boot i execute "rtadvd vr0" as root.
>
> Works:
> /etc/rc.conf: ipv6_gateway_enable=3D"NO"
> /etc/syscontrol: net.inet6.ip6.forwarding=3D1
>
> After boot i execute "rtadvd vr0" as root.
>
> The difference i belive is the setting of net.inet6.ip6.accept_rtadv=3D0
> in /etc/rc.d/network_ipv6 .
So you are trying to get a rtadv from yourself? I don't think we support=20
that out of the box. What I do is (adapted to your network):
ipv6_ifconfig_vr0=3D"2001:16d8:ff50:0001:: prefixlen 64"
rtadvd_enable=3D"YES"
rtadvd_interfaces=3D"vr0"
without a rtadvd.conf. In addition I have ipv6_defaultrouter set to my=20
PoPs tunnel endpoint.
That's what works for me. I'm not sure what the benefit of an=20
autoconfigured address on vr0 would be. I find it easier to refer to my=20
local router as <network>::/128.
=2D-=20
/"\ Best regards, | mlaier@freebsd.org
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Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>,
"Bruce M. Simpson" <bms@FreeBSD.org>, Max Laier <max@love2party.net>
Subject: Re: UDP catchall
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It's possible using ipfw to mostly implement this, and with an upcoming change, possible
to completely implement this.
the "uid" function of ipfw can act as a "does there exist a socket to which this packet would go?" test.
and a variant of it called "for_me" that I am adding (we use it at work) does this even better.
so, basically,
yyy: skipto xxx ip from any to-me
yyy+1: fwd 127.0.0.1,1234
xxx:
From owner-freebsd-net@FreeBSD.ORG Thu Nov 1 00:54:37 2007
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From: "Jack Vogel" <jfvogel@gmail.com>
To: "Vladimir Ivanov" <wawa@yandex-team.ru>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
Scott Long <scottl@samsco.org>,
FreeBSD Current <freebsd-current@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: Proposed #ifdef change to em
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Vladimir,
Your one phrase "more or less patched" invalidated the whole
data point. We are talking about code thats checked in and bound
for 6.3 :)
I have hundreds of machines here at Intel that DON'T have the
problem, that's why in early 20th century philosophy they realized
that verification as scientific method was ineffective, falsification
on the other hand is powerful. So if any users out there have
a problem I am trying to understand why. The only way that I
have so far reproduced something like their failure is when
FAST interrupts are enabled, THEN when I disable them on that
same machine the problem disappears. Right now I have still
not figured out why this is, I'm trying to do that as I write this.
I am also not saying that nothing ever caused a watchdog
before FAST handling, only that as best that I can tell right now
the one repro I have on STABLE, October Snapshot, is related to it.
Regards,
Jack
On 10/31/07, Vladimir Ivanov <wawa@yandex-team.ru> wrote:
> Scott Long wrote:
> > Jack Vogel wrote:
> >> I have found that the FAST interrupt handling is implicated
> >> in the watchdog resets that I have seen.
>
> It's not true. I have seen watchdogs much earlier then FASTINTR.
> Also, please note: older driver had a bug preventing watchdog to be
> reported (see http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/92895)
>
> >>
> >> What I plan to do is revert to the way 6.2 had things, meaning
> >> that FAST interrupts will be available but defined off by default.
> >>
> >> I wanted to know if anyone has an issue with this. And more
> >> importantly, I have personally not seen this problem on 7, but
> >> I could set up #ifdef's in that driver to be the same way.
> >>
> >> What does everyone think?
>
> We've a lot of computers w/FASTINTR (more or less patched). They carry
> huge traffic. But I don't remember when I have seen last watchdog.
>
> E.g.:
>
> pitman:~# sysctl dev.em.0.stats=1; dmesg | tail -30
> dev.em.0.stats: -1 -> -1
> [skip]
> em0: Excessive collisions = 0
> em0: Sequence errors = 0
> em0: Defer count = 0
> em0: Missed Packets = 44614035
> em0: Receive No Buffers = 5082415
> em0: Receive Length Errors = 0
> em0: Receive errors = 0
> em0: Crc errors = 1
> em0: Alignment errors = 0
> em0: Carrier extension errors = 0
> em0: RX overruns = 185231
> em0: watchdog timeouts = 0
> em0: XON Rcvd = 0
> em0: XON Xmtd = 0
> em0: XOFF Rcvd = 0
> em0: XOFF Xmtd = 0
> em0: Good Packets Rcvd = 918214961288
> em0: Good Packets Xmtd = 933147667144
> pitman:~# uptime
> 2:54 up 247 days, 5:59, 1 user, load averages: 1,82 1,63 1,55
>
> WBR,
> Vladimir
>
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To: Christopher Arnold <chris@arnold.se>
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Subject: Re: Correct way to enable ipv6 and sixxs-aiccu?
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and..
On Thu, 2007-11-01 at 07:36 +0900, Byung-Hee HWANG wrote:
> On Wed, 2007-10-31 at 18:32 +0100, Christopher Arnold wrote:
> >
> > On Thu, 1 Nov 2007, Byung-Hee HWANG wrote:
> >
> > > On Wed, 2007-10-31 at 15:49 +0100, Christopher Arnold wrote:
> > >> While brushing up my ipv6 knowledge i ran into an issue with sixxs-aiccu
> > >> and configuring ipv6 in rc.conf:
> > >>
> > >> I have manually configured my gateway to route ipv6 to my internal
> > >> network, and this works without problems.
> > >> But as soon as i have ipv6_gateway_enable="YES" in /etc/rc.conf rtadvd
> > >> doesn't set an ipv6 address on my vr0 interface. (Btw. the only interface
> > >> i have on the machine.)
> > >
> > > Well, we don't know how to you configure your IPv6 router in manual. So
> > > you'd better show us the information like your manual scripts if you
> > > want to give more correct advices ;;
> > >
> > Ok to be totally clear:
> > # more /etc/rtadvd.conf
> > vr0:\
> > :addr="2001:16d8:ff50::":prefixlen#64:
> >
> >
> > Dosn't Work:
> > /etc/rc.conf: ipv6_gateway_enable="YES"
> > After boot i execute "rtadvd vr0" as root.
> >
> > Works:
> > /etc/rc.conf: ipv6_gateway_enable="NO"
> > /etc/syscontrol: net.inet6.ip6.forwarding=1
> >
> > After boot i execute "rtadvd vr0" as root.
> >
> > The difference i belive is the setting of net.inet6.ip6.accept_rtadv=0 in
> > /etc/rc.d/network_ipv6 .
> >
> > >> After digging around a bit i noticed that /etc/rc.d/network_ipv6 sets
> > >> net.inet6.ip6.accept_rtadv=0 and if i manually set
> > >> net.inet6.ip6.accept_rtadv=1 and then restart rtadvd things work and i get
> > >> an address on my interface.
> > >
> > >> Since i guess dissabling accept_rtadv is done for a reason i wonder what
> > >> is the correct way to setup ipv6 in /etc/rc.conf is?
> > >
> > > Do you have native IPv6 addresses? If you do, i am proud of you. Anyway
> > > you need to have a look IPv6 section of FreeBSD Handbook, rtadvd(8) and
> > > rtadvd.conf(5). It will give you help. And you need to study IPv6 stuff
> > > because it is not as easy as it seems, AFAIK. I mean you can solve your
> > > matters if you study more.
> > >
> > Im trying as we speak, just wanted some input on how things are supposed
> > to work.
> >
> > Im running /usr/ports/net/sixxs-aiccu to bring up the tunnel and my
> > adresses are assigned from them. www.sixxs.net for more information.
> >
> > The tunnel works all the time (on the tun0 interface) so there isn't a
> > problem with my ipv6 connectivity. So i guess my question is: "Why is
> > net.inet6.ip6.accept_rtadv=0 in /etc/rc.d/network_ipv6 and how am i
> > supposed to configure ipv6 in /etc/rc.conf?"
> >
> > PS: sixxs-aiccu is run from /usr/local/etc/rc.d/ so the reason things
> > doesn't work could be related to the fact that my tunnel goes live late in
> > the boot.
>
> To solve your matters,
> i tested an IPv6 rules by 6to4 with two FreeBSD machines.
>
> 1st machine is IPv6 router by rtadv(8). // 4.11-RELEASE
> 2nd machine is IPv6 host as endhost. // 7.0-BETA1
>
> ###
> ### 1st machine's /etc/rc.conf: Router
> ###
> # IPv6: with rtadvd(8)
> ipv6_enable="YES"
> ipv6_network_interfaces="auto"
> ipv6_gateway_enable="YES"
> ipv6_prefix_ed1="2002:9be6:9d5d:0002"
> stf_interface_ipv4addr="155.230.157.93"
> stf_interface_ipv6_slaid="0001"
> ipv6_static_routes="default"
> ipv6_route_default="default 2002:c058:6301::"
> ipv6_ifconfig_ed1="2002:9be6:9d5d:2:0050:4d00:fe78:5df3 prefixlen 64"
> rtadvd_enable="YES"
> rtadvd_interfaces="ed1"
>
> ###
> ### 2nd machine's /etc/rc.conf: End-Host
> ###
> # IPv6: getting autoconfigured
> # net.inet6.ip6.accept_rtadv=1 (in /etc/sysctl.conf)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> ipv6_enable="YES"
Above net.inet6.ip6.accetp_rtadv value is made by rtsol(8) on boot if
you set just one line (ipv6_enable="YES") in /etc/rc.conf ;; So we don't
need to force the value (net.inet6.ip6.accept_rtadvd) manually. I
verified the scenario by testing again with 7.0-BETA1 machine. Yep, the
7.0-BETA machine is the End-Host.
> bh@viola:~> ping6 -c 3 castle.jp.freebsd.org.
> PING6(56=40+8+8 bytes) 2002:9be6:9d5d:2:20b:6aff:fe56:969f -->
> 2001:218:422:1::15
> 16 bytes from 2001:218:422:1::15, icmp_seq=0 hlim=49 time=388.469 ms
> 16 bytes from 2001:218:422:1::15, icmp_seq=1 hlim=49 time=378.904 ms
> 16 bytes from 2001:218:422:1::15, icmp_seq=2 hlim=49 time=395.308 ms
>
> --- castle.jp.freebsd.org ping6 statistics ---
> 3 packets transmitted, 3 packets received, 0.0% packet loss
> round-trip min/avg/max/std-dev = 378.904/387.560/395.308/6.728 ms
> bh@viola:~>
>
> After all,
> two machines works fine each other without any problems.
>
> Then you can figure out later your own answer.
>
> Sincerely,
>
--
"I would work for you like your sons."
-- Tom Hagen, "Chapter 1", page 52
From owner-freebsd-net@FreeBSD.ORG Thu Nov 1 08:38:05 2007
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
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Subject: Re: Proposed #ifdef change to em
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Hi,
Jack Vogel wrote:
> Vladimir,
>
> Your one phrase "more or less patched" invalidated the whole
> data point. We are talking about code thats checked in and bound
> for 6.3 :)
Oops. I've got it. Maybe we talk about different kinds of watchdog. I
have meant TX queue watchdogs.
Yes, there is a problem with system watchdog in mainstream driver.
Sometimes system stops to respond due to kernel activity for a one
minute or less. Hardware watchdog can reset system this time.
This issue is specific to taskq (fastintr) version of driver
The fix is very simple: we've to schedule less priority to RX thread. We
use PRI_MAX_KERN instead of PI_NET in Yandex' revision of driver.
>
> I have hundreds of machines here at Intel that DON'T have the
> problem, that's why in early 20th century philosophy they realized
> that verification as scientific method was ineffective, falsification
> on the other hand is powerful. So if any users out there have
> a problem I am trying to understand why. The only way that I
> have so far reproduced something like their failure is when
> FAST interrupts are enabled, THEN when I disable them on that
> same machine the problem disappears. Right now I have still
> not figured out why this is, I'm trying to do that as I write this.
>
> I am also not saying that nothing ever caused a watchdog
> before FAST handling, only that as best that I can tell right now
> the one repro I have on STABLE, October Snapshot, is related to it.
>
> Regards,
>
> Jack
>
WBR,Vladimir
From owner-freebsd-net@FreeBSD.ORG Thu Nov 1 12:33:53 2007
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Cc: "freebsd-net@freebsd.org" <freebsd-net@FreeBSD.org>,
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Subject: Re: em watchdogs - OS involvement
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On Tue, 30 Oct 2007, Jack Vogel wrote:
> Another bit of data, if I define DEVICE_POLLING on the Oct. snap it
> also will work.
Defining DEVICE_POLLING (globally) breaks configuration of "fast"
interrupt handlers in em. I have to #undef it to test "fast" interrupt
handlers in em without losing testing of polling in other network
drivers. I lose only testing of polling in em.
Bruce
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From: Brooks Davis <brooks@freebsd.org>
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Cc: freebsd-net@freebsd.org, Brooks Davis <brooks@freebsd.org>,
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Subject: Re: UDP catchall
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On Wed, Oct 31, 2007 at 09:53:56AM -0700, Julian Elischer wrote:
> It's possible using ipfw to mostly implement this, and with an upcoming=
=20
> change, possible to completely implement this.
>=20
> the "uid" function of ipfw can act as a "does there exist a socket to whi=
ch=20
> this packet would go?" test.
> and a variant of it called "for_me" that I am adding (we use it at work)=
=20
> does this even better.
>=20
> so, basically,
>=20
> yyy: skipto xxx ip from any to-me
> yyy+1: fwd 127.0.0.1,1234
> xxx:
One problem with this kind of implementation is that it's impossible to
make it plug and play. You have to have a firewall configured and you
have to tell mtund where I can stick it's rules so it doesn't screw up
your fireall config and it gets the packets it needs. One major goal of
mtund is that it require as little configuraiton as possible. Ideally,
you could be able to get a connection if it's possible with nothing but
the IP address(es) of the friendly server and the IPoDNS zone.
Also, while it's less useful in the UDP case, the TCP case could be
extremely useful for setting up a poorman's mtund server where you run
ssh or an HTTP service of some sort on every port.
-- Brooks
--PNTmBPCT7hxwcZjr
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From owner-freebsd-net@FreeBSD.ORG Thu Nov 1 18:07:11 2007
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From: Stefan Lambrev <stefan.lambrev@moneybookers.com>
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Subject: FIN_WAIT_2 on FreeBSD 6.2-STABLE
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Hi,
I'm seeing strange problem with sockets in state FIN_WAIT_2.
netstat -n |grep FIN_WAIT_2|wc -l
shows 12234 lines, Those sockets never die and just grow more and more,
when finally today I saw this in logs:
postfix/smtp[6968]: connect to gmail-smtp-in.l.google.com[66.249.91.27]:
Can't assign requested address (port 25)
and this happens not only to postfix, but all clients & servers on this
host.
Even things that use only local connections throw out: connect: Can't
assign requested address
Shorty after I moved away almost everything from this server, there was
a spontaneous reboot.
I know what apache and some buggy clients can cause sockets to stay in
state FIN_WAIT_2, but they should disappear
after some timeout.
Is there a point to go for 6.3-prerelease, or nothing like this was
reported, respectively fixed between may 2007 and today?
Migration to RELENG_7 is not option for me at this point as this host
serves something like 6mbps of http traffic,
and there is a report that sometimes hosts running releng_7 can't be
reached ..
6.2-STABLE from May 9 - amd64
Thanks in advance.
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 00:55:43 2007
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To: freebsd-net@freebsd.org, freebsd-stable@freebsd.org, jfvogel@gmail.com
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From: Pete French <petefrench@ticketswitch.com>
Date: Fri, 02 Nov 2007 00:55:41 +0000
Cc:
Subject: Re: Test changes to em
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> You just replace the two files in your STABLE tree. Its big
> enough that this seemed easier than a patch.
Did you miss a file ? I nly see a new header file in here. Am keen to
try this out though...
-pcf.
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 02:16:32 2007
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To: jfvogel@gmail.com
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From: Pete French <petefrench@ticketswitch.com>
Date: Fri, 02 Nov 2007 02:16:30 +0000
Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org
Subject: Re: Test changes to em
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> Eh, what I see is if_em.h and if_em.c, does the version
> that came thru not have both??
Nope, it's only got if_em.h in it - I just took a look at
the actual mime stuff in the email and tere is only one
attachment in the version I received.
-pete.
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 02:44:59 2007
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From: "Jack Vogel" <jfvogel@gmail.com>
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Subject: Re: Test changes to em
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Eh, what I see is if_em.h and if_em.c, does the version
that came thru not have both??
Jack
On 11/1/07, Pete French <petefrench@ticketswitch.com> wrote:
> > You just replace the two files in your STABLE tree. Its big
> > enough that this seemed easier than a patch.
>
> Did you miss a file ? I nly see a new header file in here. Am keen to
> try this out though...
>
> -pcf.
>
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 03:49:51 2007
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This is a substantial change to the EM driver that I would
appreciate some testing and feedback on.
You just replace the two files in your STABLE tree. Its big
enough that this seemed easier than a patch.
Whats in this:
A change Mike Silbersack came up with, it makes the
watchdog period twice as long, but then in the middle
of it fires off a clean. Thats a small change.
Secondly, I took the locking mechanism I used in ixgbe
and added it here. It uses two locks: core and tx instead
of one.
Third, added the EEPROM dumper into the driver, if you
do `sysctl dev.em.X.debug=2' it will dump 32 words
worth of the prom, this will allow an easy way to tell if
you need a patch to an 82573 for instance.
Next, I found a serious bug for Zoar (82575) users, it
had to do with how and when I decide to try and use
MSI/X, the fact that no one has squawked about this
must mean all users are running 7 :) cuz on STABLE
right now the driver load will FAIL if you enable MSI/X
on the system. What I did was to create a new function
for setting up msi and msix, its much cleaner and fixes
this problem.
In any case, I have done some pounding on this but
wider testing would be good, let me know what you
find.
I hope to get this all resolved and into the tree for 6.3.
Jack
------=_Part_14646_10493375.1193961243659
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From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 08:11:28 2007
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Date: Fri, 2 Nov 2007 00:10:59 -0800
From: "Jack Vogel" <jfvogel@gmail.com>
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Subject: Re: Test changes to em
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Although I see it at least one person claims the message
came thru with only the header file, so I am going
to send if_em.c thru again.
Jack
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From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 12:17:21 2007
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Subject: Re: Test changes to em
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Jack Vogel wrote:
> Although I see it at least one person claims the message
> came thru with only the header file, so I am going
> to send if_em.c thru again.
>
> Jack
>
> ------------------------------------------------------------------------
>
> _______________________________________________
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> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
In this mail if_em.c is not here for me, as in the previous.
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 12:57:17 2007
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Cc: freebsd-current@freebsd.org
Subject: rtfree: 0xc741ee88 has 1 refs
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Hi,
I see rtfree: 0xc741ee88 has 1 refs with freebsd releng_7 (i386) from today.
I think it's easy reproducible. What I have is:
releng_7 (10.1.1.2) -> default GW (10.1.1.1)
on default GW I have route to 10.10.1.1/24 -> 10.1.1.3
so everytime when 10.1.1.2 try to contact someone from 10.10.1.1/24 I see:
rtfree: 0xc741ee88 has 1 refs
if I add direct route on 10.1.1.2 to 10.10.1.1/24 through 10.1.1.3 the
message will go away.
Should I ignore this msg for now, or should I expect kernel panic soon? :)
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 13:27:53 2007
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Date: Fri, 2 Nov 2007 13:14:21 +0100
From: Erik Trulsson <ertr1013@student.uu.se>
To: Jack Vogel <jfvogel@gmail.com>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>
Subject: Re: Test changes to em
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On Fri, Nov 02, 2007 at 12:10:59AM -0800, Jack Vogel wrote:
> Although I see it at least one person claims the message
> came thru with only the header file, so I am going
> to send if_em.c thru again.
>
Attachments are usually stripped off by the mailing list software, so
you are probably better off putting the files on a webpage somewhere
and just telling us the URL.
--
<Insert your favourite quote here.>
Erik Trulsson
ertr1013@student.uu.se
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 20:14:03 2007
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To: freebsd-net@freebsd.org, freebsd-stable@freebsd.org, jfvogel@gmail.com
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From: Pete French <petefrench@ticketswitch.com>
Date: Fri, 02 Nov 2007 19:20:40 +0000
Cc:
Subject: Re: Another send of EM test change
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Thanks, that worked ifne, am just compiling them now to try...
-pete.
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 20:24:35 2007
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From: "Jack Vogel" <jfvogel@gmail.com>
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Subject: Re: Test changes to em
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So at this point I'm unclear, with my reposting of if_em.c last
night has everyone seen both parts or do I have to try something
else?
Jack
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 20:29:58 2007
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To: "Jack Vogel" <jfvogel@gmail.com>,
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From: Mike Tancsa <mike@sentex.net>
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Cc:
Subject: Re: Test changes to em
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At 12:33 PM 11/2/2007, Jack Vogel wrote:
>So at this point I'm unclear, with my reposting of if_em.c last
>night has everyone seen both parts or do I have to try something
>else?
Seems to work. I grabbed it from the mailing list archive off www.freebsd.org
http://lists.freebsd.org/pipermail/freebsd-stable/2007-November/037936.html
0[releng6-865]% tar -pxzf p.tgz
0[releng6-865]%
0[releng6-865]%
0[releng6-865]% fetch -o p.tgz
http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20071102/e68d41b4/test-em.obj
p.tgz 100% of 33 kB 17 MBps
0[releng6-865]% tar -vpxzf p.tgz
x if_em.c
x if_em.h
0[releng6-865]% md5 p.tgz
MD5 (p.tgz) = cd7aea528578d8695464a9aa8f685ee2
0[releng6-865]% md5 if_em.c
MD5 (if_em.c) = 2d0eee0ccec12daf412848b76efc8149
0[releng6-865]% md5 if_em.h
MD5 (if_em.h) = bce0fec7794006fc03ae88dce5f77f71
0[releng6-865]%
>Jack
>_______________________________________________
>freebsd-stable@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 21:16:03 2007
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Date: Fri, 2 Nov 2007 10:03:51 -0700
From: "Jack Vogel" <jfvogel@gmail.com>
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Subject: Another send of EM test change
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------=_Part_4024_2310972.1194023032077
Content-Type: text/plain; charset=ISO-8859-1
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It seems that some mailer is stripping source attachments,
so I'm sending this in an archive.
NOTE: the attachment is a bz2, rename to extract it.
Jack
------=_Part_4024_2310972.1194023032077
Content-Type: application/octet-stream; name=test-em
Content-Transfer-Encoding: base64
X-Attachment-Id: f_f8iyqy4l
Content-Disposition: attachment; filename=test-em
QlpoOTFBWSZTWSgyB4AA48h/lf//9qB/////v/////////8EAAQAIAAACGC6Xu8FsMgAAFVQARAJ
FN932+50926Ci73vezAAAPiQulzVt9s7t7kctvl7i7sltPB7d59F1jve46e0ypUG2d4avWQA09F7
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9fB2+7U+bXrH3g2nVOb6fXDohU9yZZoeuJ7W3q3wFOhW3Vt99vp5XxiKvfb4KAD19x1nu6JxNb6P
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From owner-freebsd-net@FreeBSD.ORG Fri Nov 2 21:50:01 2007
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From: Julian Elischer <julian@elischer.org>
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To: Mike Tancsa <mike@sentex.net>
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
FreeBSD Stable List <freebsd-stable@freebsd.org>,
Jack Vogel <jfvogel@gmail.com>
Subject: Re: Test changes to em
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Mike Tancsa wrote:
> At 12:33 PM 11/2/2007, Jack Vogel wrote:
>> So at this point I'm unclear, with my reposting of if_em.c last
>> night has everyone seen both parts or do I have to try something
>> else?
>
I never saw a .c file
so put them in ~/public_html on freefall
and they can be accessed as:
http://people.freebsd.org/~(yourlogin)/(filename)
>
> Seems to work. I grabbed it from the mailing list archive off
> www.freebsd.org
possibly the archive gets it before stripping?
>
> http://lists.freebsd.org/pipermail/freebsd-stable/2007-November/037936.html
>
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Date: Sat, 3 Nov 2007 20:23:20 +0200
From: "Ivo Vachkov" <ivo.vachkov@gmail.com>
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Subject: Maximum number of vlans on a freebsd box ???
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Hello all,
I'd like to ask if someone has information how many vlans a freebsd
box can 'run' ?
Thanks in advance.
/ipv
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From: Andrew Thompson <thompsa@FreeBSD.org>
To: Ivo Vachkov <ivo.vachkov@gmail.com>
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Subject: Re: Maximum number of vlans on a freebsd box ???
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On Sat, Nov 03, 2007 at 08:23:20PM +0200, Ivo Vachkov wrote:
> Hello all,
>
> I'd like to ask if someone has information how many vlans a freebsd
> box can 'run' ?
There is no limit. You can only add 4096 per interface of course as its
a 12bit tag. If you are adding a lot then you should use the VLAN_ARRAY
kernel option which gives a constant tag lookup time.
Andrew