linux-kernel - Re: [FMC] BUG: scheduling while atomic: swapper/1/0x10000002

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Message-ID: <20130703073249.GA27110@mail.gnudd.com>
Date:	Wed, 3 Jul 2013 09:32:49 +0200
From:	Alessandro Rubini <rubini@...dd.com>
To:	fengguang.wu@...el.com
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Subject: Re: [FMC] BUG: scheduling while atomic: swapper/1/0x10000002

Hello.

> I got the below dmesg and the first bad commit is
> 
> commit 4debfe409b6e550032bfef9733e9f6f7c5613617
> Author: Alessandro Rubini <rubini@...dd.com>
> Date:   Tue Jun 18 23:48:07 2013 +0200
> 
>     FMC: add a char-device mezzanine driver

thank you for your report. I already got a problem report with
built-in FMC subsystem, but I couldn't reproduce it.  Actually, I use
drivers/fmc daily (I'm currently finalizing an ADC driver), but I run
the whole subsystem as module; it never happens in that case.

Thank you for bisecting, I'll take a deeper look as soon as possible
(hopefully today).  Meanwhile, please disable FMC or build as modules.

/alessandro
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