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Subject: [Bug 275002] if_wg: Missing failure check for m_copyback()
Date: Sat, 11 Nov 2023 20:23:21 +0000
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Kyle Evans <kevans@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jhb@FreeBSD.org,
| |kevans@freebsd.org
--- Comment #2 from Kyle Evans <kevans@freebsd.org> ---
(In reply to Kristof Provost from comment #1)
Might be worth adding a KASSERT for, though I imagine if something is wrong
with the accounting in m_copyback() we would've seen it elsewhere.
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Subject: [Bug 275001] if_wg: Missing radix unlock can cause deadlock
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--- Comment #3 from Aaron LI <aly@aaronly.me> ---
(In reply to Kristof Provost from comment #2)
Thank you.
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Subject: [Bug 275002] if_wg: Missing failure check for m_copyback()
Date: Sun, 12 Nov 2023 04:13:32 +0000
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--- Comment #3 from Aaron LI <aly@aaronly.me> ---
(In reply to Kristof Provost from comment #1)
> I don't think that's an issue here because the mbuf is known to be of
> length 'len' before it's passed to m_copyout(). The allocation is done
> just before the m_copyback().
Oh, that's true. I forget that implication set by m_get2() just before
m_copyback().
As kevans suggested, a KASSERT() after m_copyback() would make it clear
and remove this confusion.
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Subject: [Bug 275002] if_wg: Missing failure check for m_copyback()
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275002
Aaron LI <aly@aaronly.me> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|Affects Many People |Affects Some People
--=20
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From: Glasha Petrovna <petroglasha@gmail.com>
Date: Sun, 12 Nov 2023 17:12:04 +0500
Message-ID: <CAJeWmt1nAQZg1e5dFhr1aZ0TKTZNHcyDve9Cyf-YLHK=f1tqBA@mail.gmail.com>
Subject: RSS Hashing Algorithm in FreeBSD
To: freebsd-net@freebsd.org
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--000000000000d2883d0609f37621
Content-Type: text/plain; charset="UTF-8"
Hi,
Wanted to ask, is it possible to change the RSS Hashing algorithm and
hashing key in FreeBSD?
In Linux, I can use an ethtool utility to control RSS.
Kind regards
Glasha
--000000000000d2883d0609f37621
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">Hi,=C2=A0<div><br></div><div>Wanted to ask, is it possible=
to change the RSS Hashing algorithm=C2=A0and hashing key in FreeBSD?</div>=
<div><br></div><div><div>In Linux, I can use an ethtool utility to control =
RSS.</div></div><div><br></div><div>Kind=C2=A0regards</div><div>Glasha</div=
></div>
--000000000000d2883d0609f37621--
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Sun, 12 Nov 2023 13:00:06 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274926
Olivier Cochard <olivier@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|bugs@FreeBSD.org |net@FreeBSD.org
CC| |erj@freebsd.org
Keywords| |IntelNetworking
--- Comment #5 from Olivier Cochard <olivier@freebsd.org> ---
So interface em0 I presume ?
Any specific configuration with it ? (bridge, vlan, etc.)
Intel chipset 0x0DC5, so an Intel I219-LM using id
"E1000_DEV_ID_PCH_RPL_I219_LM23" in sys/dev/e1000/e1000_hw.h
--=20
You are receiving this mail because:
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To: net@FreeBSD.org
Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Sun, 12 Nov 2023 14:30:07 +0000
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--- Comment #6 from David Durieux <david@durieux.family> ---
I use jails (iocage) with vnet / bridge
rc.conf:=20
[...]
kld_list=3D"i915kms"
ifconfig_em0=3D"DHCP"
pf_enable=3D"YES"
linux_enable=3D"YES"
wlans_iwlwifi0=3D"wlan0"
ifconfig_wlan0=3D"WPA SYNCDHCP"
devfs_system_ruleset=3D"system"
## network internal interfaces
cloned_interfaces=3D"bridge0 bridge1"
# plumb interface em0 into bridge0 (needed to prevent other bridge to have =
ARP
request from LAN)
ifconfig_bridge0=3D"addm em0 up"
# plumb interface em0 into bridge1
ifconfig_bridge1_alias0=3D"inet 10.0.1.254 netmask 255.255.255.0"
gateway_enable=3D"YES"
iocage_enable=3D"YES"
result of ifconfig:=20
% ifconfig
em0: flags=3D1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_U=
P>
metric 0 mtu 1500
=20=20=20=20=20=20=20
options=3D4e500bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS=
UM,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG>
ether ac:91:a1:29:d2:65
inet 192.168.20.173 netmask 0xffffff00 broadcast 192.168.20.255
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
lo0: flags=3D1008049<UP,LOOPBACK,RUNNING,MULTICAST,LOWER_UP> metric 0 mtu 1=
6384
options=3D680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
groups: lo
nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
wlan0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
00
options=3D0
ether 50:28:4a:30:e1:de
groups: wlan
ssid "" channel 1 (2412 MHz 11g)
regdomain FCC country US authmode WPA1+WPA2/802.11i privacy MIXED
deftxkey UNDEF txpower 30 bmiss 7 scanvalid 60 protmode CTS wme
roaming MANUAL
parent interface: iwlwifi0
media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
status: no carrier
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
bridge0: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> m=
etric
0 mtu 1500
options=3D0
ether 58:9c:fc:10:61:4f
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
member: em0 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 1 priority 128 path cost 20000
groups: bridge
nd6 options=3D9<PERFORMNUD,IFDISABLED>
bridge1: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> m=
etric
0 mtu 1500
options=3D0
ether 58:9c:fc:10:a7:5a
inet 10.0.1.254 netmask 0xffffff00 broadcast 10.0.1.255
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
member: vnet0.3 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 13 priority 128 path cost 2000
member: vnet0.2 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 10 priority 128 path cost 2000
member: vnet0.1 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 7 priority 128 path cost 2000
groups: bridge
nd6 options=3D9<PERFORMNUD,IFDISABLED>
vnet0.1: flags=3D1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOW=
ER_UP>
metric 0 mtu 1500
description: associated with jail: circus-pes-translation-export as
nic: epair0b
options=3D8<VLAN_MTU>
ether 6c:0b:84:28:a5:05
hwaddr 02:2b:df:33:c5:0a
groups: epair
media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)
status: active
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
vnet0.2: flags=3D1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOW=
ER_UP>
metric 0 mtu 1500
description: associated with jail: circus-pes-translation as nic:
epair0b
options=3D8<VLAN_MTU>
ether 6c:0b:84:28:a5:05
hwaddr 02:6e:f8:c5:23:0a
groups: epair
media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)
status: active
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
vnet0.3: flags=3D1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOW=
ER_UP>
metric 0 mtu 1500
description: associated with jail: fusionsoftware-backend as nic:
epair0b
options=3D8<VLAN_MTU>
ether 6c:0b:84:c7:22:b2
hwaddr 02:94:93:56:60:0a
groups: epair
media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)
status: active
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
tun0: flags=3D1008051<UP,POINTOPOINT,RUNNING,MULTICAST,LOWER_UP> metric 0 m=
tu
1500
options=3D80000<LINKSTATE>
inet 172.17.0.6 --> 172.17.0.5 netmask 0xffffffff
groups: tun
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
Opened by PID 5311
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To: net@FreeBSD.org
Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Sun, 12 Nov 2023 15:22:33 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274926
Zhenlei Huang <zlei@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |zlei@FreeBSD.org
--- Comment #7 from Zhenlei Huang <zlei@FreeBSD.org> ---
(In reply to David Durieux from comment #0)
May you please share the text version of core dump? It is lightweight. It
should be named core.txt.* in /var/crash directory.
Note that requires kgdb installed from devel/gdb port or gdb package.
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Sun, 12 Nov 2023 16:12:42 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274926
--- Comment #8 from Olivier Cochard <olivier@freebsd.org> ---
To sum up, there are 2 problems here:
1). The root cause:=C2=A0After network cable disconnect, the negotiated spe=
ed is 10
Mbps in place of 1Gbps.
Notice there are multiple reports of this same 10Mbps negotiation bug (after
sleep or disconnection) on Linux with same chipset. Power management seems =
to
be the culprit on Linux:
https://bugzilla.redhat.com/show_bug.cgi?id=3D1627816
And the Linux patches that solved it are:
e1000e: PCIm function state support:
https://lkml.kernel.org/netdev/20190628224932.3389-16-jeffrey.t.kirsher@int=
el.com/
e1000e: Make speed detection on hotplugging cable more reliable
https://lkml.kernel.org/netdev/309B89C4C689E141A5FF6A0C5FB2118B970D75A2@ORS=
MSX103.amr.corp.intel.com/T/
2). The second bug with netif restart that trigger a panic, and the text
version of the core dump is requested to get more clue about this one.
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Sun, 12 Nov 2023 16:27:18 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274926
--- Comment #9 from David Durieux <david@durieux.family> ---
Yes that's correct for the 2 problems.
I will generate a core dump this evening or tomorrow.
--=20
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Subject: Problem reports for net@FreeBSD.org that need special attention
Date: Sun, 12 Nov 2023 21:00:43 +0000
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--16998228433.8b2A2.49453
Date: Sun, 12 Nov 2023 21:00:43 +0000
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To view an individual PR, use:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id).
The following is a listing of current problems submitted by FreeBSD users,
which need special attention. These represent problem reports covering
all versions including experimental development code and obsolete releases.
Status | Bug Id | Description
------------+-----------+---------------------------------------------------
New | 204438 | setsockopt() handling of kern.ipc.maxsockbuf limi
New | 213410 | [carp] service netif restart causes hang only whe
Open | 7556 | ppp: sl_compress_init() will fail if called anyth
Open | 193452 | Dell PowerEdge 210 II -- Kernel panic bce (broadc
Open | 202510 | [CARP] advertisements sourced from CARP IP cause
Open | 207261 | netmap: Doesn't do TX sync with kqueue
Open | 225438 | panic in6_unlink_ifa() due to race
Open | 236888 | ppp daemon: Allow MTU to be overridden for PPPoE
Open | 237072 | netgraph(4): performance issue [on HardenedBSD]?
Open | 237973 | pf: implement egress keyword to simplify rules ac
Open | 238324 | Add XG-C100C/AQtion AQC107 10GbE NIC driver
Open | 240944 | em(4): Crash with Intel 82571EB NIC with AMD Pile
In Progress | 118111 | rc: network.subr Add MAC address based interface
13 problems total for which you should take action.
--16998228433.8b2A2.49453
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<pre style="font-family: monospace;">
The following is a listing of current problems submitted by FreeBSD users,
which need special attention. These represent problem reports covering
all versions including experimental development code and obsolete releases.
Status | Bug Id | Description
------------+-----------+---------------------------------------------------
New | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204438">204438</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204438">setsockopt() handling of kern.ipc.maxsockbuf limi</a>
New | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213410">213410</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213410">[carp] service netif restart causes hang only whe</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=7556">7556</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=7556">ppp: sl_compress_init() will fail if called anyth</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193452">193452</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193452">Dell PowerEdge 210 II -- Kernel panic bce (broadc</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202510">202510</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202510">[CARP] advertisements sourced from CARP IP cause </a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207261">207261</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207261">netmap: Doesn't do TX sync with kqueue</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225438">225438</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225438">panic in6_unlink_ifa() due to race</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236888">236888</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236888">ppp daemon: Allow MTU to be overridden for PPPoE </a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237072">237072</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237072">netgraph(4): performance issue [on HardenedBSD]?</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237973">237973</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237973">pf: implement egress keyword to simplify rules ac</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238324">238324</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238324">Add XG-C100C/AQtion AQC107 10GbE NIC driver</a>
Open | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240944">240944</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240944">em(4): Crash with Intel 82571EB NIC with AMD Pile</a>
In Progress | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=118111">118111</a> | <a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=118111">rc: network.subr Add MAC address based interface </a>
13 problems total for which you should take action.
</pre>
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Subject: [Bug 274994] Regression of iperf3 network throughput tests with erms
"rep movsb" copyto loops
Date: Mon, 13 Nov 2023 14:36:29 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274994
Richard Scheffenegger <rscheff@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|New |Closed
Resolution|--- |Not A Bug
--- Comment #3 from Richard Scheffenegger <rscheff@freebsd.org> ---
Seems like a number of anciliary changes in the kernel behavior (core
selection, NUMA etc) cause these more modern x86_64 instructions to be
suboptimal in the local code; testing with upstream kernel code does not sh=
ow
similar performance degradations. Closing this bug therefore as it needs to=
be
addressed locally by making sure these instructions live up to the
expectations.
--=20
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Mon, 13 Nov 2023 15:01:58 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274926
--- Comment #10 from David Durieux <david@durieux.family> ---
Created attachment 246271
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D246271&action=
=3Dedit
core.txt.4
Is this file is the required file you need?
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Mon, 13 Nov 2023 16:22:04 +0000
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--- Comment #11 from Olivier Cochard <olivier@freebsd.org> ---
Yes, this file was usefull.
But it shows some wireless code related bug:
56 #5 0xffffffff80fe3828 at calltrap+0x8
57 #6 0xffffffff80cd3760 at ieee80211_node_psq_drain+0x100
58 #7 0xffffffff80cc7736 at node_cleanup+0xa6
59 #8 0xffffffff80cc7655 at node_free+0x25
60 #9 0xffffffff80cc7ceb at ieee80211_node_vdetach+0x2b
61 #10 0xffffffff80c9fa7d at ieee80211_vap_detach+0x44d
62 #11 0xffffffff80d9febd at lkpi_ic_vap_delete+0x9d
63 #12 0xffffffff80cabaf2 at wlan_clone_destroy+0x12
64 #13 0xffffffff80c66041 at if_clone_destroy+0x91
65 #14 0xffffffff80c62499 at ifioctl+0x899
Could you try again to reproduce this without those lines in your rc.conf:
wlans_iwlwifi0=3D"wlan0"
ifconfig_wlan0=3D"WPA SYNCDHCP"
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
Date: Mon, 13 Nov 2023 16:41:48 +0000
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--- Comment #12 from David Durieux <david@durieux.family> ---
With these 2 lines commented, I have no crash, so seems a problem with
wireless?
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Subject: [Bug 274926] Problem with netwokr card, and when restart network,
crash system
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--- Comment #13 from Olivier Cochard <olivier@freebsd.org> ---
Yes, this second problem seems related to this existing bug "iwlwifi: AX201:
crash (kernel panic) on ifconfig wlan0 destroy":
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273985
So, kept this bug open for your root cause: After network cable disconnect,=
the
negotiated speed is 10 Mbps in place of 1Gbps.
I will rename the title.
--=20
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Subject: [Bug 274926] Intel I219-LM renegotiates speed to 10Mbps after
disconnection instead of 1Gbps
Date: Mon, 13 Nov 2023 16:49:09 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274926
Olivier Cochard <olivier@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Problem with netwokr card, |Intel I219-LM renegotiates
|and when restart network, |speed to 10Mbps after
|crash system |disconnection instead of
| |1Gbps
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Subject: [Bug 272319] FreeBSD kernel crash on MPD5 restart with PPP
configuration.
Date: Wed, 15 Nov 2023 15:38:29 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272319
Eugene Grosbein <eugen@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugs.freebsd.org/bu
| |gzilla/show_bug.cgi?id=3D2=
751
| |06
--=20
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Subject: [Bug 272319] FreeBSD kernel crash on MPD5 restart with PPP
configuration.
Date: Wed, 15 Nov 2023 17:20:04 +0000
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Gleb Smirnoff <glebius@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|net@FreeBSD.org |glebius@FreeBSD.org
Status|Open |In Progress
--=20
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275002
John Baldwin <jhb@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|New |Closed
Resolution|--- |Not A Bug
--- Comment #4 from John Baldwin <jhb@FreeBSD.org> ---
Hmm, you could perhaps KASSERT that mget2() returned a chain of the proper
length, but that's really just asserting that the API works as documented. =
I'm
not quite sure it's worth asserting after m_copyback as the length really
shouldn't change. Other places in the tree that use the pattern of
preallocating the mbuf chain by m_getm or m_get2 don't check the length aft=
er
m_copyback (linux_80211.c, iw_cxgbe/cm.c, gve_rx.c were ones I looked at), =
so I
don't think it's worth adding an assertion here.
--=20
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Subject: Request for Testing: TCP RACK
Message-Id: <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org>
Date: Thu, 16 Nov 2023 10:13:05 +0100
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Dear all,
recently the main branch was changed to build the TCP RACK stack
which is a loadable kernel module, by default:
=
https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb00a3c6fe=
b03756cc
As discussed on the bi-weekly transport call, it would be great if =
people
could test the RACK stack for their workload. Please report any problems =
to the
net@ mailing list or open an issue in the bug tracker and drop me a note =
via email.
This includes regressions in CPU usage, regressions in performance or =
any other
unexpected change you observe.
You can load the kernel module using
kldload tcp_rack
You can make the RACK stack the default stack using
sysctl net.inet.tcp.functions_default=3Drack
Based on the feedback we get, the default stack might be switched to the
RACK stack.
Please let me know if you have any questions.
Best regards
Michael
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Subject: [Bug 274715] [ktls] deadlock with mlx5 and KTLS receive
Date: Thu, 16 Nov 2023 11:17:54 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274715
--- Comment #8 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=3Da592812327deaf69ab226afc5c8a01af4=
3dc03c2
commit a592812327deaf69ab226afc5c8a01af43dc03c2
Author: Martin Matuska <mm@FreeBSD.org>
AuthorDate: 2023-11-13 13:29:27 +0000
Commit: Martin Matuska <mm@FreeBSD.org>
CommitDate: 2023-11-16 11:17:41 +0000
mlx5_core: fix deadlock when using RXTLS
If removing a node of type FS_TYPE_FLOW_DEST we lock the flow group too
late. This can lead to a deadlock with fs_add_dst_fg().
PR: 274715
MFC after: 1 week
Reviewed by: kib
Tested by: mm
Differential Revision: https://reviews.freebsd.org/D42368
sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--=20
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Subject: [Bug 266356] Extra TCP stacks (RACK, BBR and TCP HTPS) are outdated
in stable/13
Date: Thu, 16 Nov 2023 11:34:11 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D266356
Gordon Bergling <gbe@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |Overcome By Events
Status|New |Closed
--=20
You are receiving this mail because:
You are the assignee for the bug.=
From nobody Thu Nov 16 12:06:03 2023
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From: "Herbert J. Skuhra" <herbert@gojira.at>
To: tuexen@freebsd.org
Cc: current@freebsd.org,
net@freebsd.org
Subject: Re: Request for Testing: TCP RACK
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Hi,
On Thu, 16 Nov 2023 10:13:05 +0100, tuexen@freebsd.org wrote:
>
> Dear all,
>
> recently the main branch was changed to build the TCP RACK stack
> which is a loadable kernel module, by default:
> https://cgit.FreeBSD.org/src/commit/?id=3a338c534154164504005beb00a3c6feb03756cc
>
> As discussed on the bi-weekly transport call, it would be great if people
> could test the RACK stack for their workload. Please report any problems to the
> net@ mailing list or open an issue in the bug tracker and drop me a note via email.
> This includes regressions in CPU usage, regressions in performance or any other
> unexpected change you observe.
>
> You can load the kernel module using
> kldload tcp_rack
>
> You can make the RACK stack the default stack using
> sysctl net.inet.tcp.functions_default=rack
>
> Based on the feedback we get, the default stack might be switched to the
> RACK stack.
>
> Please let me know if you have any questions.
I am running main-n266450-a592812327de with a GENERIC-NODEBUG kernel.
# kldload tcp_rack
kldload: an error occurred while loading module tcp_rack. Please check
dmesg(8) for more details.
In dmesg:
KLD tcp_rack.ko: depends on tcphpts - not available or version mismatch
linker_load_file: /boot/kernel/tcp_rack.ko - unsupported file type
So you have to build a kernel with "options TCPHPTS" first?
--
Herbert
From nobody Thu Nov 16 13:05:10 2023
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Message-ID: <87o7ftyhkp.wl-herbert@gojira.at>
From: "Herbert J. Skuhra" <herbert@gojira.at>
To: tuexen@freebsd.org
Cc: current@freebsd.org,
net@freebsd.org
Subject: Re: Request for Testing: TCP RACK
In-Reply-To: <87pm09ykb8.wl-herbert@gojira.at>
References: <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org>
<87pm09ykb8.wl-herbert@gojira.at>
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On Thu, 16 Nov 2023 13:06:03 +0100, "Herbert J. Skuhra" wrote:
>
> Hi,
>
> On Thu, 16 Nov 2023 10:13:05 +0100, tuexen@freebsd.org wrote:
> >
> > Dear all,
> >
> > recently the main branch was changed to build the TCP RACK stack
> > which is a loadable kernel module, by default:
> > https://cgit.FreeBSD.org/src/commit/?id=3a338c534154164504005beb00a3c6feb03756cc
> >
> > As discussed on the bi-weekly transport call, it would be great if people
> > could test the RACK stack for their workload. Please report any problems to the
> > net@ mailing list or open an issue in the bug tracker and drop me a note via email.
> > This includes regressions in CPU usage, regressions in performance or any other
> > unexpected change you observe.
> >
> > You can load the kernel module using
> > kldload tcp_rack
> >
> > You can make the RACK stack the default stack using
> > sysctl net.inet.tcp.functions_default=rack
> >
> > Based on the feedback we get, the default stack might be switched to the
> > RACK stack.
> >
> > Please let me know if you have any questions.
>
> I am running main-n266450-a592812327de with a GENERIC-NODEBUG kernel.
>
> # kldload tcp_rack
> kldload: an error occurred while loading module tcp_rack. Please check
> dmesg(8) for more details.
>
> In dmesg:
> KLD tcp_rack.ko: depends on tcphpts - not available or version mismatch
> linker_load_file: /boot/kernel/tcp_rack.ko - unsupported file type
>
> So you have to build a kernel with "options TCPHPTS" first?
OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
After setting "sysctl net.inet.tcp.functions_default=rack" git no
longer works:
# sysctl net.inet.tcp.functions_default=rack
$ git pull
client_loop: send disconnect: Broken pipe
fatal: the remote end hung up upon initial contact
# sysctl net.inet.tcp.functions_default=freebsd
$ git pull
Already up to date.
--
Herbert
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<87pm09ykb8.wl-herbert@gojira.at> <87o7ftyhkp.wl-herbert@gojira.at>
In-Reply-To: <87o7ftyhkp.wl-herbert@gojira.at>
From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@freebsd.org>
Date: Thu, 16 Nov 2023 19:07:29 +0100
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Message-ID: <CA+q+TcoU21yisYDuCkYtAkJE-WXLdtohZi893zMP+NMG0WUh3Q@mail.gmail.com>
Subject: Re: Request for Testing: TCP RACK
To: "Herbert J. Skuhra" <herbert@gojira.at>
Cc: tuexen@freebsd.org, current@freebsd.org, net@freebsd.org
Content-Type: multipart/alternative; boundary="0000000000004f1a7d060a48e517"
--0000000000004f1a7d060a48e517
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
On Thu, Nov 16, 2023 at 5:10=E2=80=AFPM Herbert J. Skuhra <herbert@gojira.a=
t> wrote:
>
> OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
>
> After setting "sysctl net.inet.tcp.functions_default=3Drack" git no
> longer works:
>
>
Are you using a fresh 15 head or a specific network setup ?
Because I'm not able to reproduce your problem on my system:
$ uname -a
FreeBSD bigone 15.0-CURRENT FreeBSD 15.0-CURRENT #0
main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS
amd64
$ cat /usr/src/sys/amd64/conf/TCPHPTS
include GENERIC-NODEBUG
ident TCPHPTS
options TCPHPTS
$ sysctl net.inet.tcp.functions_default
net.inet.tcp.functions_default: rack
$ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
working
$
--0000000000004f1a7d060a48e517
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:"courier new",monospace"><span style=3D"font-family:Aria=
l,Helvetica,sans-serif">On Thu, Nov 16, 2023 at 5:10=E2=80=AFPM Herbert J. =
Skuhra <<a href=3D"mailto:herbert@gojira.at">herbert@gojira.at</a>> w=
rote:</span><br></div></div><div class=3D"gmail_quote"><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex"><br>
OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".<br>
<br>
After setting "sysctl net.inet.tcp.functions_default=3Drack" git =
no<br>
longer works:<br><br></blockquote><div><br></div><div class=3D"gmail_defaul=
t" style=3D"font-family:"courier new",monospace">Are you using a =
fresh 15 head or a specific network setup ?</div><div class=3D"gmail_defaul=
t" style=3D"font-family:"courier new",monospace"><br></div><div c=
lass=3D"gmail_default" style=3D"font-family:"courier new",monospa=
ce">Because I'm not able to reproduce your problem on my system:</div><=
div class=3D"gmail_default" style=3D"font-family:"courier new",mo=
nospace"><br></div><div class=3D"gmail_default" style=3D"font-family:"=
courier new",monospace">$ uname -a<br>FreeBSD bigone 15.0-CURRENT Free=
BSD 15.0-CURRENT #0 main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023=
=C2=A0 =C2=A0 root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS amd64<b=
r>$ cat /usr/src/sys/amd64/conf/TCPHPTS<br>include GENERIC-NODEBUG<br>ident=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 TCPHPTS<br>=
options =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 TCPHPTS<br>=
</div><div class=3D"gmail_default" style=3D"font-family:"courier new&q=
uot;,monospace">$ sysctl net.inet.tcp.functions_default<br></div><div class=
=3D"gmail_default" style=3D"font-family:"courier new",monospace">=
net.inet.tcp.functions_default: rack<br>$ git clone -q git@github.com:freeb=
sd/freebsd-src.git && echo working<br>working<br>$</div></div></div=
>
--0000000000004f1a7d060a48e517--
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Message-ID: <87msvdy0v4.wl-herbert@gojira.at>
From: "Herbert J. Skuhra" <herbert@gojira.at>
To: Olivier =?ISO-8859-1?Q?Cochard-Labb=E9?= <olivier@freebsd.org>
Cc: tuexen@freebsd.org,
current@freebsd.org,
net@freebsd.org
Subject: Re: Request for Testing: TCP RACK
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On Thu, 16 Nov 2023 19:07:29 +0100, Olivier Cochard-Labb=C3=A9 wrote:
>=20
> On Thu, Nov 16, 2023 at 5:10=E2=80=AFPM Herbert J. Skuhra <herbert@gojira=
.at> wrote:
>=20
> >
> > OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
> >
> > After setting "sysctl net.inet.tcp.functions_default=3Drack" git no
> > longer works:
> >
> >
> Are you using a fresh 15 head or a specific network setup ?
>=20
> Because I'm not able to reproduce your problem on my system:
>=20
> $ uname -a
> FreeBSD bigone 15.0-CURRENT FreeBSD 15.0-CURRENT #0
> main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
> root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS
> amd64
> $ cat /usr/src/sys/amd64/conf/TCPHPTS
> include GENERIC-NODEBUG
> ident TCPHPTS
> options TCPHPTS
> $ sysctl net.inet.tcp.functions_default
> net.inet.tcp.functions_default: rack
> $ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
> working
> $
OK, (g)it works if I disable pf. Do you use pf?
--
Herbert
From nobody Thu Nov 16 23:08:58 2023
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Subject: Re: Request for Testing: TCP RACK
From: tuexen@freebsd.org
In-Reply-To: <87pm09ykb8.wl-herbert@gojira.at>
Date: Fri, 17 Nov 2023 00:08:58 +0100
Cc: current@freebsd.org,
net@freebsd.org
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<87pm09ykb8.wl-herbert@gojira.at>
To: "Herbert J. Skuhra" <herbert@gojira.at>
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> On Nov 16, 2023, at 13:06, Herbert J. Skuhra <herbert@gojira.at> =
wrote:
>=20
> Hi,
>=20
> On Thu, 16 Nov 2023 10:13:05 +0100, tuexen@freebsd.org wrote:
>>=20
>> Dear all,
>>=20
>> recently the main branch was changed to build the TCP RACK stack
>> which is a loadable kernel module, by default:
>> =
https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb00a3c6fe=
b03756cc
>>=20
>> As discussed on the bi-weekly transport call, it would be great if =
people
>> could test the RACK stack for their workload. Please report any =
problems to the
>> net@ mailing list or open an issue in the bug tracker and drop me a =
note via email.
>> This includes regressions in CPU usage, regressions in performance or =
any other
>> unexpected change you observe.
>>=20
>> You can load the kernel module using
>> kldload tcp_rack
>>=20
>> You can make the RACK stack the default stack using
>> sysctl net.inet.tcp.functions_default=3Drack
>>=20
>> Based on the feedback we get, the default stack might be switched to =
the
>> RACK stack.
>>=20
>> Please let me know if you have any questions.
>=20
> I am running main-n266450-a592812327de with a GENERIC-NODEBUG kernel.
>=20
> # kldload tcp_rack
> kldload: an error occurred while loading module tcp_rack. Please check
> dmesg(8) for more details.
>=20
> In dmesg:
> KLD tcp_rack.ko: depends on tcphpts - not available or version =
mismatch
> linker_load_file: /boot/kernel/tcp_rack.ko - unsupported file type
>=20
> So you have to build a kernel with "options TCPHPTS" first?
Hi Herbert,
yes this is correct. For whatever reason I was assuming the TCPHPTS is =
already
enabled in all configs, but this is not correct.
Will put up an review to do this tomorrow. Thanks for reporting.
Best regards
Michael
>=20
> --
> Herbert
From nobody Thu Nov 16 23:12:35 2023
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Subject: Re: Request for Testing: TCP RACK
From: tuexen@freebsd.org
In-Reply-To: <87o7ftyhkp.wl-herbert@gojira.at>
Date: Fri, 17 Nov 2023 00:12:35 +0100
Cc: current@freebsd.org,
net@freebsd.org
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<87pm09ykb8.wl-herbert@gojira.at> <87o7ftyhkp.wl-herbert@gojira.at>
To: "Herbert J. Skuhra" <herbert@gojira.at>
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> On Nov 16, 2023, at 14:05, Herbert J. Skuhra <herbert@gojira.at> =
wrote:
>=20
> On Thu, 16 Nov 2023 13:06:03 +0100, "Herbert J. Skuhra" wrote:
>>=20
>> Hi,
>>=20
>> On Thu, 16 Nov 2023 10:13:05 +0100, tuexen@freebsd.org wrote:
>>>=20
>>> Dear all,
>>>=20
>>> recently the main branch was changed to build the TCP RACK stack
>>> which is a loadable kernel module, by default:
>>> =
https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb00a3c6fe=
b03756cc
>>>=20
>>> As discussed on the bi-weekly transport call, it would be great if =
people
>>> could test the RACK stack for their workload. Please report any =
problems to the
>>> net@ mailing list or open an issue in the bug tracker and drop me a =
note via email.
>>> This includes regressions in CPU usage, regressions in performance =
or any other
>>> unexpected change you observe.
>>>=20
>>> You can load the kernel module using
>>> kldload tcp_rack
>>>=20
>>> You can make the RACK stack the default stack using
>>> sysctl net.inet.tcp.functions_default=3Drack
>>>=20
>>> Based on the feedback we get, the default stack might be switched to =
the
>>> RACK stack.
>>>=20
>>> Please let me know if you have any questions.
>>=20
>> I am running main-n266450-a592812327de with a GENERIC-NODEBUG kernel.
>>=20
>> # kldload tcp_rack
>> kldload: an error occurred while loading module tcp_rack. Please =
check
>> dmesg(8) for more details.
>>=20
>> In dmesg:
>> KLD tcp_rack.ko: depends on tcphpts - not available or version =
mismatch
>> linker_load_file: /boot/kernel/tcp_rack.ko - unsupported file type
>>=20
>> So you have to build a kernel with "options TCPHPTS" first?
>=20
> OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
>=20
> After setting "sysctl net.inet.tcp.functions_default=3Drack" git no
> longer works:
>=20
> # sysctl net.inet.tcp.functions_default=3Drack
> $ git pull
> client_loop: send disconnect: Broken pipe
> fatal: the remote end hung up upon initial contact
> # sysctl net.inet.tcp.functions_default=3Dfreebsd
> $ git pull
> Already up to date.
Interesting. It works on my development system:
tuexen@head:~/freebsd-src % sysctl net.inet.tcp.functions_default
net.inet.tcp.functions_default: rack
tuexen@head:~/freebsd-src % git pull
Already up to date.
tuexen@head:~/freebsd-src %
Could you provide a .pcapng file covering the `git pull` command?
Best regards
Michael
>=20
> --
> Herbert
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Subject: Re: Request for Testing: TCP RACK
From: tuexen@freebsd.org
In-Reply-To: <87msvdy0v4.wl-herbert@gojira.at>
Date: Fri, 17 Nov 2023 00:15:13 +0100
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<87pm09ykb8.wl-herbert@gojira.at> <87o7ftyhkp.wl-herbert@gojira.at>
<CA+q+TcoU21yisYDuCkYtAkJE-WXLdtohZi893zMP+NMG0WUh3Q@mail.gmail.com>
<87msvdy0v4.wl-herbert@gojira.at>
To: "Herbert J. Skuhra" <herbert@gojira.at>
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> On Nov 16, 2023, at 20:06, Herbert J. Skuhra <herbert@gojira.at> =
wrote:
>=20
> On Thu, 16 Nov 2023 19:07:29 +0100, Olivier Cochard-Labb=C3=A9 wrote:
>>=20
>> On Thu, Nov 16, 2023 at 5:10=E2=80=AFPM Herbert J. Skuhra =
<herbert@gojira.at> wrote:
>>=20
>>>=20
>>> OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
>>>=20
>>> After setting "sysctl net.inet.tcp.functions_default=3Drack" git no
>>> longer works:
>>>=20
>>>=20
>> Are you using a fresh 15 head or a specific network setup ?
>>=20
>> Because I'm not able to reproduce your problem on my system:
>>=20
>> $ uname -a
>> FreeBSD bigone 15.0-CURRENT FreeBSD 15.0-CURRENT #0
>> main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
>> root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS
>> amd64
>> $ cat /usr/src/sys/amd64/conf/TCPHPTS
>> include GENERIC-NODEBUG
>> ident TCPHPTS
>> options TCPHPTS
>> $ sysctl net.inet.tcp.functions_default
>> net.inet.tcp.functions_default: rack
>> $ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
>> working
>> $
>=20
> OK, (g)it works if I disable pf. Do you use pf?
Can you share your pf config such that I can reproduce the problem =
locally?
Best regards
Michael
>=20
> --
> Herbert
From nobody Fri Nov 17 04:28:28 2023
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Subject: [Bug 275146] odd error handling from net.inet.tcp.functions_default
sysctl
Date: Fri, 17 Nov 2023 04:28:28 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275146
Mark Linimon <linimon@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|bugs@FreeBSD.org |net@FreeBSD.org
--=20
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From nobody Fri Nov 17 13:31:02 2023
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From: "Herbert J. Skuhra" <herbert@gojira.at>
To: tuexen@freebsd.org
Cc: Olivier =?ISO-8859-1?Q?Cochard-Labb=E9?= <olivier@freebsd.org>,
current@freebsd.org, net@freebsd.org
Subject: Re: Request for Testing: TCP RACK
In-Reply-To: <867DC224-F0B1-4C9C-8EB7-C9F7BE1C029A@freebsd.org>
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Hi,
On Fri, 17 Nov 2023 00:15:13 +0100, tuexen@freebsd.org wrote:
>=20
> > On Nov 16, 2023, at 20:06, Herbert J. Skuhra <herbert@gojira.at> wrote:
> >=20
> > On Thu, 16 Nov 2023 19:07:29 +0100, Olivier Cochard-Labb=C3=A9 wrote:
> >>=20
> >> On Thu, Nov 16, 2023 at 5:10=E2=80=AFPM Herbert J. Skuhra <herbert@goj=
ira.at> wrote:
> >>=20
> >>>=20
> >>> OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
> >>>=20
> >>> After setting "sysctl net.inet.tcp.functions_default=3Drack" git no
> >>> longer works:
> >>>=20
> >>>=20
> >> Are you using a fresh 15 head or a specific network setup ?
> >>=20
> >> Because I'm not able to reproduce your problem on my system:
> >>=20
> >> $ uname -a
> >> FreeBSD bigone 15.0-CURRENT FreeBSD 15.0-CURRENT #0
> >> main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
> >> root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS
> >> amd64
> >> $ cat /usr/src/sys/amd64/conf/TCPHPTS
> >> include GENERIC-NODEBUG
> >> ident TCPHPTS
> >> options TCPHPTS
> >> $ sysctl net.inet.tcp.functions_default
> >> net.inet.tcp.functions_default: rack
> >> $ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
> >> working
> >> $
> >=20
> > OK, (g)it works if I disable pf. Do you use pf?
> Can you share your pf config such that I can reproduce the problem locall=
y?
1. It even fails with a simple pf.conf:
pass in all
pass out all
2. Fetching port distfiles also failed.
3. If I disable rxcsum on the ethernet adapter (igb0) it works.
Thanks.
--
Herbert
From nobody Fri Nov 17 13:46:52 2023
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In-Reply-To: <87edgo33s9.wl-herbert@gojira.at>
From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@freebsd.org>
Date: Fri, 17 Nov 2023 14:46:52 +0100
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Message-ID: <CA+q+TcoX9+P8SM=oZvY=WSPBBKiHC_WSmpw=74nNJ4U8ZF+=DQ@mail.gmail.com>
Subject: Re: Request for Testing: TCP RACK
To: "Herbert J. Skuhra" <herbert@gojira.at>
Cc: tuexen@freebsd.org, current@freebsd.org, net@freebsd.org
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--00000000000017b87a060a595f61
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On Fri, Nov 17, 2023 at 2:31=E2=80=AFPM Herbert J. Skuhra <herbert@gojira.a=
t> wrote:
>
> 1. It even fails with a simple pf.conf:
> pass in all
> pass out all
>
> 2. Fetching port distfiles also failed.
>
> 3. If I disable rxcsum on the ethernet adapter (igb0) it works.
>
>
> I can't reproduce it with pfctl too (same igb drivers with default RXCSUM
enabled).
$ cat /etc/pf.conf
pass in all
pass out all
$ service pf onestart
Enabling pf
.
$ pfctl -sr
pass in all flags S/SA keep state
pass out all flags S/SA keep state
$ sysctl net.inet.tcp.functions_default
net.inet.tcp.functions_default: rack
$ ifconfig igb0 | grep option
options=3D4e523bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS=
UM,TSO4,TSO6,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWS=
TATS,MEXTPG>
nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
$ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
working
What is your igb chipset exactly ? (pciconf -lv | grep -B 3 -F "network")
What is your netstat -ss output ?
--00000000000017b87a060a595f61
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:"courier new",monospace"><span style=3D"font-family:Aria=
l,Helvetica,sans-serif">On Fri, Nov 17, 2023 at 2:31=E2=80=AFPM Herbert J. =
Skuhra <<a href=3D"mailto:herbert@gojira.at">herbert@gojira.at</a>> w=
rote:</span><br></div></div><div class=3D"gmail_quote"><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex"><br>
1. It even fails with a simple pf.conf:<br>
=C2=A0 =C2=A0pass in all<br>
=C2=A0 =C2=A0pass out all<br>
<br>
2. Fetching port distfiles also failed.<br>
<br>
3. If I disable rxcsum on the ethernet adapter (igb0) it works.<br>
<br><br></blockquote><font face=3D"monospace">I can't reproduce it with=
pfctl too (same igb drivers with default RXCSUM enabled).<br><br>$ cat /et=
c/pf.conf<br>pass in all<br>pass out all<br>$ service pf onestart<br>Enabli=
ng pf<br>.<br>$ pfctl -sr<br>pass in all flags S/SA keep state<br>pass out =
all flags S/SA keep state<br>$ sysctl net.inet.tcp.functions_default<br>net=
.inet.tcp.functions_default: rack<br>$ ifconfig igb0 | grep option<br>=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 options=3D4e523bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_H=
WTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO=
,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG><br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL><br><br>$ git clone -q git=
@github.com:freebsd/freebsd-src.git && echo working<br>working<br><=
br>What is your igb chipset exactly =C2=A0? (pciconf -lv | grep -B 3 -F &qu=
ot;network")<br>What is your netstat -ss output ?</font></div><div cla=
ss=3D"gmail_quote"><font face=3D"monospace"><br></font></div></div>
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From: "Herbert J. Skuhra" <herbert@gojira.at>
To: Olivier =?iso-8859-1?Q?Cochard-Labb=E9?= <olivier@freebsd.org>
Cc: tuexen@freebsd.org, current@freebsd.org, net@freebsd.org
Subject: Re: Request for Testing: TCP RACK
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Hi,
On Fri, Nov 17, 2023 at 02:46:52PM +0100, Olivier Cochard-Labbé wrote:
> On Fri, Nov 17, 2023 at 2:31 PM Herbert J. Skuhra <herbert@gojira.at> wrote:
>
> >
> > 1. It even fails with a simple pf.conf:
> > pass in all
> > pass out all
> >
> > 2. Fetching port distfiles also failed.
> >
> > 3. If I disable rxcsum on the ethernet adapter (igb0) it works.
> >
> >
> I can't reproduce it with pfctl too (same igb drivers with default RXCSUM
> enabled).
>
> $ cat /etc/pf.conf
> pass in all
> pass out all
> $ service pf onestart
> Enabling pf
> .
> $ pfctl -sr
> pass in all flags S/SA keep state
> pass out all flags S/SA keep state
> $ sysctl net.inet.tcp.functions_default
> net.inet.tcp.functions_default: rack
> $ ifconfig igb0 | grep option
>
> options=4e523bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG>
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>
> $ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
> working
>
> What is your igb chipset exactly ? (pciconf -lv | grep -B 3 -F "network")
igb0@pci0:41:0:0: class=0x020000 rev=0x03 hdr=0x00 vendor=0x8086 device=0x1533 subvendor=0x1849 subdevice=0x1533
vendor = 'Intel Corporation'
device = 'I210 Gigabit Network Connection'
class = network
> What is your netstat -ss output ?
tcp:
946 packets sent
933 data packets (41681 bytes)
7946 ack-only packets (2 delayed)
1 control packet
999 packets received
860 acks (for 41681 bytes)
910 packets (118790 bytes) received in-sequence
12 completely duplicate packets (17136 bytes)
1 connection request
1 connection established (including accepts)
1 time used RTT from hostcache
1 time used RTT variance from hostcache
1 connection closed (including 1 drop)
1 connection updated cached RTT on close
1 connection updated cached RTT variance on close
862 segments updated rtt (of 847 attempts)
71 correct ACK header predictions
124 correct data packet header predictions
7910 SACK options (SACK blocks) sent
TCP connection count by state:
7 connections in LISTEN state
1 connection in ESTABLISHED state
udp:
39 datagrams received
39 delivered
39 datagrams output
ip:
80 total packets received
23 packets for this host
23 packets sent from this host
icmp:
ICMP address mask responses are disabled
igmp:
arp:
ip6:
933 total packets received
931 packets for this host
8891 packets sent from this host
Input histogram:
TCP: 915
UDP: 16
ICMP6: 2
Mbuf statistics:
870 one mbuf
63 one ext mbuf
0 two or more ext mbuf
source addresses on an outgoing I/F
2 link-locals
3 globals
source addresses of same scope
2 link-locals
3 globals
Source addresses selection rule applied:
5 first candidate
3 appropriate scope
icmp6:
Output histogram:
neighbor solicitation: 2
Input histogram:
neighbor advertisement: 2
Histogram of error messages to be generated:
rip6:
Thanks.
--
Herbert
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Ed Maste <emaste@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |emaste@freebsd.org
Status|New |In Progress
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Subject: [Bug 275146] odd error handling from net.inet.tcp.functions_default
sysctl
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275146
--- Comment #1 from Ed Maste <emaste@freebsd.org> ---
Proposed patch from zlei in https://reviews.freebsd.org/D42647
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Subject: Re: Request for Testing: TCP RACK
From: Zhenlei Huang <zlei@FreeBSD.org>
In-Reply-To: <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org>
Date: Sun, 19 Nov 2023 02:35:16 +0800
Cc: current@freebsd.org,
net@freebsd.org
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To: tuexen@freebsd.org
X-Mailer: Apple Mail (2.3696.120.41.1.4)
> On Nov 16, 2023, at 5:13 PM, tuexen@freebsd.org wrote:
>=20
> Dear all,
>=20
> recently the main branch was changed to build the TCP RACK stack
> which is a loadable kernel module, by default:
> =
https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb00a3c6fe=
b03756cc
>=20
> As discussed on the bi-weekly transport call, it would be great if =
people
> could test the RACK stack for their workload. Please report any =
problems to the
> net@ mailing list or open an issue in the bug tracker and drop me a =
note via email.
> This includes regressions in CPU usage, regressions in performance or =
any other
> unexpected change you observe.
I see some performance regression with the rack stack.
This is iperf3 test on local host (bare metal, an old i5 2 cores 4 =
threads MBP).
freebsd: 16.1 Gbits/sec
rack: 12.3 Gbits/sec
The congestion control algorithm is cubic.
Note this is a quick test with DEBUG options enabled.
I'll try with no debug options and report later.
>=20
> You can load the kernel module using
> kldload tcp_rack
>=20
> You can make the RACK stack the default stack using
> sysctl net.inet.tcp.functions_default=3Drack
>=20
> Based on the feedback we get, the default stack might be switched to =
the
> RACK stack.
>=20
> Please let me know if you have any questions.
>=20
> Best regards
> Michael
>=20
>=20
>=20
Best regards,
Zhenlei
From nobody Sat Nov 18 19:11:57 2023
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From: Zhenlei Huang <zlei@FreeBSD.org>
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Subject: Re: Request for Testing: TCP RACK
Date: Sun, 19 Nov 2023 03:11:57 +0800
In-Reply-To: <941203D6-3A72-48A4-8C2C-F59C964199A9@FreeBSD.org>
Cc: FreeBSD Current <current@freebsd.org>,
net@freebsd.org
To: tuexen@freebsd.org
References: <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org>
<941203D6-3A72-48A4-8C2C-F59C964199A9@FreeBSD.org>
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> On Nov 19, 2023, at 2:35 AM, Zhenlei Huang <zlei@FreeBSD.org> wrote:
>=20
>=20
>=20
>> On Nov 16, 2023, at 5:13 PM, tuexen@freebsd.org wrote:
>>=20
>> Dear all,
>>=20
>> recently the main branch was changed to build the TCP RACK stack
>> which is a loadable kernel module, by default:
>> =
https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb00a3c6fe=
b03756cc
>>=20
>> As discussed on the bi-weekly transport call, it would be great if =
people
>> could test the RACK stack for their workload. Please report any =
problems to the
>> net@ mailing list or open an issue in the bug tracker and drop me a =
note via email.
>> This includes regressions in CPU usage, regressions in performance or =
any other
>> unexpected change you observe.
>=20
> I see some performance regression with the rack stack.
>=20
> This is iperf3 test on local host (bare metal, an old i5 2 cores 4 =
threads MBP).
>=20
> freebsd: 16.1 Gbits/sec
> rack: 12.3 Gbits/sec
>=20
> The congestion control algorithm is cubic.
>=20
> Note this is a quick test with DEBUG options enabled.
>=20
> I'll try with no debug options and report later.
** UPDATE **
With no debug options:
freebsd: 37.2 Gbits/sec
rack: 27.9 Gbits/sec
>=20
>>=20
>> You can load the kernel module using
>> kldload tcp_rack
>>=20
>> You can make the RACK stack the default stack using
>> sysctl net.inet.tcp.functions_default=3Drack
>>=20
>> Based on the feedback we get, the default stack might be switched to =
the
>> RACK stack.
>>=20
>> Please let me know if you have any questions.
>>=20
>> Best regards
>> Michael
>>=20
>>=20
>>=20
>=20
> Best regards,
> Zhenlei
--Apple-Mail=_0CD24F9E-1A69-4822-9C27-CFB1FF17C237
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=us-ascii
<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><br =
class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Nov 19, 2023, at 2:35 AM, Zhenlei Huang <<a =
href=3D"mailto:zlei@FreeBSD.org" class=3D"">zlei@FreeBSD.org</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><blockquote type=3D"cite" style=3D"font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D"">On =
Nov 16, 2023, at 5:13 PM, <a href=3D"mailto:tuexen@freebsd.org" =
class=3D"">tuexen@freebsd.org</a> wrote:<br class=3D""><br class=3D"">Dear=
all,<br class=3D""><br class=3D"">recently the main branch was changed =
to build the TCP RACK stack<br class=3D"">which is a loadable kernel =
module, by default:<br class=3D""><a =
href=3D"https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb=
00a3c6feb03756cc" =
class=3D"">https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005=
beb00a3c6feb03756cc</a><br class=3D""><br class=3D"">As discussed on the =
bi-weekly transport call, it would be great if people<br class=3D"">could =
test the RACK stack for their workload. Please report any problems to =
the<br class=3D"">net@ mailing list or open an issue in the bug tracker =
and drop me a note via email.<br class=3D"">This includes regressions in =
CPU usage, regressions in performance or any other<br =
class=3D"">unexpected change you observe.<br class=3D""></blockquote><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">I see some =
performance regression with the rack stack.</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">This is =
iperf3 test on local host (bare metal, an old i5 2 cores 4 threads =
MBP).</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" =
class=3D"">freebsd:</span><span class=3D"Apple-tab-span" =
style=3D"caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: pre; word-spacing: =
0px; -webkit-text-stroke-width: 0px; text-decoration: none;"> =
</span><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">16.1 =
Gbits/sec</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" =
class=3D"">rack:</span><span class=3D"Apple-tab-span" =
style=3D"caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: pre; word-spacing: =
0px; -webkit-text-stroke-width: 0px; text-decoration: none;"> =
</span><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">12.3 =
Gbits/sec</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">The =
congestion control algorithm is cubic.</span><br style=3D"caret-color: =
rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: =
normal; font-variant-caps: normal; font-weight: 400; letter-spacing: =
normal; text-align: start; text-indent: 0px; text-transform: none; =
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;" class=3D""><br style=3D"caret-color: rgb(0, 0, =
0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;" class=3D""><span style=3D"caret-color: rgb(0, 0, =
0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline !important;" =
class=3D"">Note this is a quick test with DEBUG options =
enabled.</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">I'll try with =
no debug options and report later.</span><br style=3D"caret-color: =
rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: =
normal; font-variant-caps: normal; font-weight: 400; letter-spacing: =
normal; text-align: start; text-indent: 0px; text-transform: none; =
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;" class=3D""></div></blockquote><div><br =
class=3D""></div><div>** UPDATE **</div><div><br =
class=3D""></div><div>With no debug options:</div><div><br =
class=3D""></div><div>freebsd:<span class=3D"Apple-tab-span" =
style=3D"white-space:pre"> </span>37.2 =
Gbits/sec</div><div>rack:<span class=3D"Apple-tab-span" =
style=3D"white-space:pre"> </span>27.9 =
Gbits/sec</div></div><div><br class=3D""><blockquote type=3D"cite" =
class=3D""><div class=3D""><br style=3D"caret-color: rgb(0, 0, 0); =
font-family: Menlo-Regular; font-size: 13px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;" class=3D""><blockquote type=3D"cite" =
style=3D"font-family: Menlo-Regular; font-size: 13px; font-style: =
normal; font-variant-caps: normal; font-weight: 400; letter-spacing: =
normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; =
text-decoration: none;" class=3D""><br class=3D"">You can load the =
kernel module using<br class=3D"">kldload tcp_rack<br class=3D""><br =
class=3D"">You can make the RACK stack the default stack using<br =
class=3D"">sysctl net.inet.tcp.functions_default=3Drack<br class=3D""><br =
class=3D"">Based on the feedback we get, the default stack might be =
switched to the<br class=3D"">RACK stack.<br class=3D""><br =
class=3D"">Please let me know if you have any questions.<br class=3D""><br=
class=3D"">Best regards<br class=3D"">Michael<br class=3D""><br =
class=3D""><br class=3D""><br class=3D""></blockquote><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" class=3D"">Best =
regards,</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;" class=3D""><span style=3D"caret-color: rgb(0, 0, 0); font-family: =
Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" =
class=3D"">Zhenlei</span></div></blockquote></div><br class=3D""><div =
class=3D"">
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Date: Sat, 18 Nov 2023 22:20:07 +0000
To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
From: =?utf-8?Q?Mina_Gali=C4=87?= <freebsd@igalic.co>
Subject: How to tell if a network interface was renamed (and from what)
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Hi folks,
Linux has an "easy" way of telling if an interface has been renamed.
See cloud-init's is_renamed function: https://github.com/canonical/cloud-in=
it/blob/5496745b394f9b7b9eaf57fd619330d484ce2da8/cloudinit/net/__init__.py#=
L338-L350
This code reads /sys/class/net/<netif>/name_assign_type and if that is 3 or=
4, it's been renamed.
I can't even think of an sensible way of replicating that.
I can only think of terrible / wrong way of finding it out:
dmesg | grep "changing name to '<new-netif>'"
a less terrible method would be to check for, say:
sysctl dev.<new-netif>.0.%driver
if that fails, we probably have a renamed interface=E2=80=A6 but we don't k=
now what it was renamed from, and this only works for *real* interfaces, no=
t for cloned devices, or epairs.
Now, ignoring my terrible hacky attempts at command line tooling, I would a=
lso happily accept a solution in C, which is fairly easily accessible from =
Python, and which we already use to figure out the uptime (or rather, the b=
oottime): https://github.com/canonical/cloud-init/blob/5496745b394f9b7b9eaf=
57fd619330d484ce2da8/cloudinit/util.py#L2073-L2105
Looking forward to reading your ideas.
Kind regards,
Mina Gali=C4=87