linux-ext4 - Re: [Bug 14843] New: WARNING: at mm/page

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Message-Id: <20091222153936.269e8153.akpm@linux-foundation.org>
Date:	Tue, 22 Dec 2009 15:39:36 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	linux-ext4@...r.kernel.org
Subject: Re: [Bug 14843] New: WARNING: at mm/page_alloc.c at ext4 root mount

On Sat, 19 Dec 2009 16:12:52 GMT
bugzilla-daemon@...zilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=14843
> 
>            Summary: WARNING: at mm/page_alloc.c at ext4 root mount
>            Product: Memory Management
>            Version: 2.5
>     Kernel Version: 2.6.33-rc1
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Page Allocator
>         AssignedTo: akpm@...ux-foundation.org
>         ReportedBy: casteyde.christian@...e.fr
>         Regression: Yes
> 
> 
> Kernel 2.6.33-rc1 64bits with kmemcheck and other debug options
> Athlon64 3GHz single core
> Acer Aspire 1511LMi
> Bluewhite 64 13 (32 bits port of Slackware)
> 
> Since 2.6.33-rc1, I get the following warning at boot when the root ext4
> filesystem is mounted:
> kmemleak: Automatic memory scanning thread started
> EXT3-fs (hda2): error: couldn't mount because of unsupported optional features
> (240)
> EXT2-fs (hda2): error: couldn't mount because of unsupported optional features
> (240)
> ------------[ cut here ]------------
> WARNING: at mm/page_alloc.c:1220 get_page_from_freelist+0x6a4/0x6c0()

Can we please zap that __GFP_NOFAIL in journal_init_common()?
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