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Date: Tue, 4 Nov 2008 11:33:09 -0200
From: "Jorge Peixoto de Morais Neto" <please.no.spam.here@gmail.com>
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To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Kernel BUG
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>>
>> For about a week, my workstation has been crashing every day or so.
>> Typically it happens late at night while BackupPC is backing up a hard
>> drive. With "tail -F /var/log/messages" running I saw EXT3 mentioned a
>> few days ago and started suspecting a hard drive problem.
>>
>> Last night it happened again.  This time my "tail ..." window was
>> opened full screen so I saw all the messages and know more.  Here's
>> part of what I wrote down (until I got tired of writing):
>>
>>  BUG unable to handle kernel NULL pointer dereference at 0000008
>>  IP   ffffff8027ce14 free_block+0xb4/0x160
>>  PGD 11b638067 PUD 11b631067 PMD 0
>>  Oops 0002[1]SMP
>>  ...
>>  Call Trace
>>     8027cac0 cache_flusharray+0x60/0xe0
>>     8027cc46 kmem_cache_free
>>
>> I'm running a 2.6.25-gentoo-r7
>>
>> To learn more about what's happening (and to more easily record
>> all the kernel messages), I'm now running "tail -F /var/log/messages"
>> from a second machine (via an SSH session).
>>
>> Questions:
>>
>>  Is there a better way to capture the full BUG output???
>>  Once I have the full BUG output, what's the next useful thing to do?
>>

> join the lkml (linux kernel mailing list) and let them know about it?
>

For a patched kernel like gentoo-sources, wouldn't it be appropriate
better to file a bug report at Gentoo's bugzilla?