linux-kernel - Re: BUG: using smp_processor_id() in preemptible [00000000] code: icedove-bin/5449

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Message-ID: <4BFBFF34.1030907@example.com>
Date:	Tue, 25 May 2010 18:47:48 +0200
From:	Piotr Hosowicz <piotr@...owicz.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Jens Axboe <jens.axboe@...cle.com>,
	Divyesh Shah <dpshah@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: BUG: using smp_processor_id() in preemptible [00000000] code:
 icedove-bin/5449

On 25.05.2010 18:15, Peter Zijlstra wrote:
> On Tue, 2010-05-25 at 16:48 +0200, Piotr Hosowicz wrote:
>> May 25 15:04:35 aapi205 kernel: [ 9694.523288] BUG: using smp_processor_id() in preemptible [00000000] code: shutdown/16256
>> May 25 15:04:35 aapi205 kernel: [ 9694.523296] caller is dqstats_inc+0x19/0x2c
>> May 25 15:04:35 aapi205 kernel: [ 9694.523299] Pid: 16256, comm: shutdown Tainted: P        W   2.6.34-20100524-1752-patched #1
>> May 25 15:04:35 aapi205 kernel: [ 9694.523301] Call Trace:
>> May 25 15:04:35 aapi205 kernel: [ 9694.523308]  [<ffffffff811a537b>] debug_smp_processor_id+0xc7/0xe0
>> May 25 15:04:35 aapi205 kernel: [ 9694.523311]  [<ffffffff8112c0ad>] dqstats_inc+0x19/0x2c
>> May 25 15:04:35 aapi205 kernel: [ 9694.523314]  [<ffffffff8112ee66>] vfs_quota_sync+0x1b1/0x293
>> May 25 15:04:35 aapi205 kernel: [ 9694.523319]  [<ffffffff8103bf21>] ? wake_up_process+0x10/0x12
>
> That's a different issue, see:
>
>    http://lkml.org/lkml/2010/5/22/164

I do not understand fully - does that mean I have to revert commit 
a7cf4145b? And how to do it? Let's assume I git-pulled the source. What 
should be next steps.

Regards and thanks,

Piotr Hosowicz

-- 
Nie pytaj co rząd może zrobić dla ciebie. Pytaj, jak możesz temu zapobiec.
NP: Black Stone Cherry - Reverend Wrinkle
NB: 2.6.34-20100524-1752-patched
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