Date: Wed, 26 Feb 2003 20:15:20 +0100 (CET) From: Attila Nagy <bra@fsn.hu> To: Bill Paul <wpaul@FreeBSD.ORG> Cc: freebsd-current@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: Checksum offload support for Intel 82550/82551 Message-ID: <Pine.LNX.4.53.0302261956300.6884@scribble.fsn.hu> In-Reply-To: <20030226070913.5404337B401@hub.freebsd.org> References: <20030226070913.5404337B401@hub.freebsd.org>
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Hello,
> I can't easily drop everything and slap together a test setup with
> exactly the right software and hardware I need to debug everyone's
> particular problem.
That's clear.
> ("This bug only occurs in -CURRENT as of 30 seconds ago and on an
> UltraSPARC 10 with 16 if_dc interfaces and I need you to fix it _NOW_
> pleasepleasepleaseI'llevengiveyouahandjob.")
:)
I think my problem is not that hard. This bug only occurs when you are
using CURRENT (or 5.0 RELEASE) from (I think) the point where BPF changed.
> > You may know, or not it is now part of FreeBSD, the only problem is
> > that it does not work.
> I'm shocked. Shocked, I tell you.
Yes. That's very dramatic. :)
> This particular PR relates to using ng_fec with BPF (i.e. tcpdump fec0
> blows up). The code has evidently rotted quite a bit since it was
> imported. I just fixed it.
Thanks.
BTW, it still doesn't work.
I do:
kldload ng_fec
ifconfig fxp0 up; ifconfig fxp1 up
ngctl ... (exactly what's in sample_script)
ifconfig fec0 1.2.3.4 netmask 255.255.255.252 up
route add default 1.2.3.3
1.2.3.3 does not answer for ICMP pings.
The switch says:
Port-channel13 is down, line protocol is down
Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
MTU 1526 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Auto-duplex, Auto-speed
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
I got two kernel messages regarding that the interfaces are up in the
etherchannel. If I pull out one of the cables and reconnect it I get the
down/up normally.
It seems that I can't crash now with tcpdump.
I see the incoming packets on fxp[0-1], I see the outgoing ones on fec0,
but there is no connection between the two groups.
> Like I said, it depends on time and availability of resources.
Sadfully, I can't provide you more time, but can provide remote access to
resources.
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Attila Nagy e-mail: Attila.Nagy@fsn.hu
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