linux-kernel - Re: [Bug #12606] fb_mmap: circular locking dependency on hibernation

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Date:	Sun, 8 Feb 2009 23:06:09 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	righi.andrea@...il.com
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Andrey Borzenkov <arvidjaar@...l.ru>
Subject: Re: [Bug #12606] fb_mmap: circular locking dependency on hibernation

On Sunday 08 February 2009, Andrea Righi wrote:
> On 2009-02-08 20:21, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12606
> > Subject		: fb_mmap: circular locking dependency on hibernation
> > Submitter	: Andrey Borzenkov <arvidjaar@...l.ru>
> > Date		: 2009-01-27 18:37 (13 days old)
> > References	: http://marc.info/?l=linux-kernel&m=123308162731408&w=4
> > Handled-By	: Andrea Righi <righi.andrea@...il.com>
> > Patch		: http://marc.info/?l=linux-kernel&m=123365581406194&w=2
> 
> This is fixed by:
> 
> commit 1f5e31d7e55ac7fbd4ec5e5b20c8868b0e4564c9
> Author: Andrea Righi <righi.andrea@...il.com>
> Date:   Wed Feb 4 15:12:03 2009 -0800
> 
>     fbmem: don't call copy_from/to_user() with mutex held

Thanks, closed.

Rafael
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