netdev - Re: panics in tcp

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Date:	Sun, 02 Jun 2013 17:26:07 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Rob Herring <robherring2@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: panics in tcp_ack

On Sun, 2013-06-02 at 19:16 -0500, Rob Herring wrote:
> Sorry, this time with proper line wrapping...
> 
> I'm debugging a kernel panic in the networking stack that happens with a
> cluster (20-40 nodes) of Calxeda highbank (ARM Cortex A9) nodes and
> typically only after 10-24 hours. The node are transferring files
> between nodes over TCP with 20 clients and servers per node. The kernel
> is based on ubuntu 3.5 kernel which is based on 3.5.7.11. So far testing
> has shown that 3.8.11 based (ubuntu raring) kernel is fixed. Attempts to
> bisect have not yielded results as it seems multiple problems mask the
> issue. Perhaps there is some new feature which has indirectly fixed the
> problem in 3.8.

Oh well, you said it was fixed in 3.8, sorry for my prior mail.


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