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From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: "'Andrew Morton'" <akpm@osdl.org>, "Wolfgang Wander" <wwc@rentec.com>
Cc: <rlrevell@joe-job.com>, <petkov@uni-muenster.de>,
	<pharon@gmail.com>, <linux-kernel@vger.kernel.org>,
	<alsa-devel@lists.sourceforge.net>
Subject: RE: 2.6.12-rc5-mm1 alsa oops
Date: Fri, 27 May 2005 09:42:38 -0700	[thread overview]
Message-ID: <200505271642.j4RGgbg03476@unix-os.sc.intel.com> (raw)
In-Reply-To: <20050526142444.01363443.akpm@osdl.org>

Andrew Morton wrote on Thursday, May 26, 2005 2:25 PM
> > >>
> > >>this has to do with alsa indirectly. snd_pcm_mmap_data_close() accesses some 
> > >>vm_area_struct->vm_private_data and apparently there have been some 
> > >>optimizations to mmap code to avoid fragmentation of vma's so i think there's 
> > >>the problem. However, we'll need the smarter ones here :))
> > > 
> > > 
> > > Any idea which patches to back out?
> > 
> > 
> > avoiding-mmap-fragmentation-fix-2.patch
> > 
> > seems to do the trick. Ken will likely have a fix-3 shortly ;-)
> > 
> 
> Yup.  This appears to be not-an-alsa-bug.  Thanks.


I'm the guilty one here.  avoiding-mmap-fragmentation-fix-2.patch has
a major clash using vm_private_data where alsa is also using.  I just
posted a patch, please try that out.  Thanks.

http://marc.theaimsgroup.com/?l=linux-mm&m=111721191501940&w=2

- Ken


  reply	other threads:[~2005-05-27 16:43 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-26  7:32 2.6.12-rc5-mm1 alsa oops Islam Amer
2005-05-26 17:44 ` Borislav Petkov
2005-05-26 18:01   ` Lee Revell
2005-05-26 18:12     ` Borislav Petkov
2005-05-26 18:32       ` Lee Revell
2005-05-26 18:35         ` Wolfgang Wander
2005-05-26 18:59           ` Lawrence Walton
2005-05-26 21:24           ` Andrew Morton
2005-05-27 16:42             ` Chen, Kenneth W [this message]
2005-05-28  9:10               ` Borislav Petkov
     [not found] ` <4296100F.2090202@rentec.com>
2005-05-26 18:33   ` Islam Amer
  -- strict thread matches above, loose matches on Subject: below --
2005-05-26 18:42 Colin Harrison

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