From: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
To: jarkao2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: a.beregalov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
e1000-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: 2.6.30-rc1: e1000: list_add corruption
Date: Thu, 09 Apr 2009 00:51:06 -0700 (PDT) [thread overview]
Message-ID: <20090409.005106.96791990.davem@davemloft.net> (raw)
In-Reply-To: <20090409071242.GA5515-8HppEYmqbBCE+EvaaNYduQ@public.gmane.org>
From: Jarek Poplawski <jarkao2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date: Thu, 9 Apr 2009 07:12:42 +0000
> On 09-04-2009 06:20, David Miller wrote:
>> From: Alexander Beregalov <a.beregalov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> Date: Thu, 9 Apr 2009 08:16:00 +0400
>>
>>> The host has two interfaces
>>> eth0 - e1000, eth1 - forcedeth.
>>> Both are not working after that messages.
>>
>> It looks like the NAPI pending list is being modified in an illegal
>> state by forcedeth, and mid-stream to a list_del() an e1000 interrupt
>> comes in and this tries to schedule the e1000 NAPI context and we get
>> list corruption.
>
> Good point! Feel free to send a patch. ;-)
A real shame, since I sent that analysis in hoping someone else
would do the rest of the digging and write the fix. :-/
next prev parent reply other threads:[~2009-04-09 7:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 3:45 2.6.30-rc1: e1000: list_add corruption Alexander Beregalov
[not found] ` <a4423d670904082045q41274747ha08d28a0645ae378-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-04-09 3:48 ` Alexander Beregalov
[not found] ` <a4423d670904082048i26585b9boacf7ae449e004b8c-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-04-09 4:16 ` Alexander Beregalov
2009-04-09 4:20 ` David Miller
[not found] ` <20090408.212040.184687004.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-04-09 7:12 ` Jarek Poplawski
[not found] ` <20090409071242.GA5515-8HppEYmqbBCE+EvaaNYduQ@public.gmane.org>
2009-04-09 7:51 ` David Miller [this message]
2009-04-09 8:01 ` Jarek Poplawski
2009-04-09 8:04 ` David Miller
2009-04-09 8:08 ` David Miller
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