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From: TB <lkml@techboom.com>
To: Stephen Hemminger <shemminger@vyatta.com>
Cc: netdev@vger.kernel.org
Subject: Re: divide error: 0000, in bictcp_cong_avoid, kernel 2.6.39
Date: Thu, 01 Sep 2011 16:30:35 -0400	[thread overview]
Message-ID: <4E5FEB6B.2040204@techboom.com> (raw)
In-Reply-To: <4E1369FA.1090008@techboom.com>

On 11-07-05 03:46 PM, TB wrote:
> On 11-07-05 01:16 PM, Stephen Hemminger wrote:
>> On Mon, 04 Jul 2011 14:10:16 -0400
>> TB <lkml@techboom.com> wrote:
>>
>>> On 11-07-04 01:36 PM, Stephen Hemminger wrote:
>>>> Any data about the type of connection, kernel configuration or other
>>>> information that might be useful in reproducing the problem?
>>>>
>>>> Also please try 2.6.39.2
>>>
>>> We haven't found a sure way of reproducing it.
>>> It happened on 1.2% of our servers over the weekend and seems random.
>>> Both are connected with 2 gigabit ports using bonding. Traffic tends to
>>> be heavy, but doesn't seem to be a factor.
>>>
>>> Would a .config help ?
>>>
>>> Only the very basic filter module for iptables is compiled in.
>>>
>>> We will try 2.6.39.2 soon
>>
>> Kernel config (and compiler version) would help in identifying which
>> of the three divides is getting divide by zero.
> 
> # gcc --version
> gcc (Debian 4.3.2-1.1) 4.3.2
> 
> 
> # as --version
> GNU assembler (GNU Binutils for Debian) 2.18.0.20080103
> This assembler was configured for a target of `x86_64-linux-gnu'.

We have tried 3.0.4 and the bug is still present, however we have still
been unable to get a proper backtrace. It seems a lot of times the
netlog isn't working.

      reply	other threads:[~2011-09-01 21:04 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-04 14:23 divide error: 0000, in bictcp_cong_avoid, kernel 2.6.39 TB
2011-07-04 17:36 ` Stephen Hemminger
2011-07-04 18:10   ` TB
2011-07-05 17:16     ` Stephen Hemminger
2011-07-05 19:46       ` TB
2011-09-01 20:30         ` TB [this message]

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