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List: freebsd-net
Subject: Re: em0 hangs on 8-STABLE again
From: John Baldwin <jhb () freebsd ! org>
Date: 2012-01-30 14:22:26
Message-ID: 201201300922.26995.jhb () freebsd ! org
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On Sunday, January 29, 2012 4:38:39 am Lev Serebryakov wrote:
> Hello, Freebsd-net.
>
> My home server lost connection on em0 this night again. It was
> persistent problem some times ago, but with version 7.2.3 it is first
> time, but with worse symptoms.
>
> It looks like undetected hardware hang-up: no packets could be sent
> or received, and no any output in dmesg or log files. Interface
> up/down with ifconfig and cable unplugging doesn't help: ifaces sees
> all these changes, but no packets could be sent/received anyway. I
> was forced to reboot server to make it work again.
>
> IT is rather old 8-STABLE (Oct 2011), but it sems, that last change
> in e1000 for 8-STABLE was r223675, in Jun 2011, so it is "fresh"
> sources (I don't believe, that r229147 is related).
>
> Output of `sysctl dev.em' when card is not working (but after some up/down
> events) is attached.
Can you grab two snapshots after sending some traffic to it? You have several
non-zero error counters, but it would be good to see which ones are changing
while you are in this state.
--
John Baldwin
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