linux-kernel - Re: 2.6.19-rc3-git7: BUG: mutex warning sysfs_dir

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Message-ID: <45478E82.3030808@rtr.ca>
Date:	Tue, 31 Oct 2006 12:57:22 -0500
From:	Mark Lord <lkml@....ca>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>, Takashi Iwai <tiwai@...e.de>,
	Frederik Deweerdt <deweerdt@...e.fr>
Subject: Re: 2.6.19-rc3-git7:  BUG: mutex warning sysfs_dir_open

Linus Torvalds wrote:
> 
> Is this somewhat reproducible? 

Just the one occurance of it, with rc3-git7.
I've now moved on to -rc4.

> HOWEVER, google does find a clue. We've had reports of something somewhat 
> similar before: googling for "__mutex_lock_slowpath" and "sysfs_dir_open" 
> shows for example
> 
> 	http://lkml.org/lkml/2006/8/18/72
> 
> where the thread ended up first blaming sound, but then deciding that 
> maybe it was DRM-related. However, you don't seem to have any AGP or DRM 
> support at all, so maybe it really _is_ a sound problem.
> 
> Mark - can you verify that you don't have any DRM support in your kernel?

# CONFIG_DRM is not set

(but I'm about to change that!).

Cheers
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