linux-ext4 - Re: 2.6.33-rc6: ext4 triggers warning about high order allocations

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Message-ID: <4B69AB60.5070609@redhat.com>
Date:	Wed, 03 Feb 2010 10:59:12 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
CC:	"Theodore Ts'o" <tytso@....edu>, Andreas Dilger <adilger@....com>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: 2.6.33-rc6: ext4 triggers warning about high order allocations

Michael S. Tsirkin wrote:
> Hi!
> I got this warning at boot with 2.6.33-rc6:
> 
> [   12.374168] ------------[ cut here ]------------
> [   12.375798] WARNING: at mm/page_alloc.c:1813 __alloc_pages_nodemask+0x180/0x666()
> [   12.377401] Hardware name: 2241B48
> [   12.378984] Modules linked in: [last unloaded: scsi_wait_scan]
> [   12.380593] Pid: 1, comm: init Not tainted 2.6.33-rc6-aa-nopat #50
> [   12.382194] Call Trace:
> [   12.383781]  [<ffffffff810b6b3e>] ? __alloc_pages_nodemask+0x180/0x666
> [   12.385390]  [<ffffffff81041cda>] warn_slowpath_common+0x77/0xa4
> [   12.386996]  [<ffffffff81041d16>] warn_slowpath_null+0xf/0x11
> [   12.388577]  [<ffffffff810b6b3e>] __alloc_pages_nodemask+0x180/0x666
> [   12.390168]  [<ffffffff81036a9b>] ? finish_task_switch+0x4b/0xb1
> [   12.391758]  [<ffffffff810b7036>] __get_free_pages+0x12/0x4f
> [   12.393354]  [<ffffffff810de892>] __kmalloc+0x42/0x116
> [   12.394934]  [<ffffffff812405bf>] match_number+0x35/0x98
> [   12.396493]  [<ffffffff8124064d>] match_int+0xb/0xd
> [   12.398045]  [<ffffffff81169c8c>] parse_options+0x5fe/0x733
> [   12.399594]  [<ffffffff811058c3>] ? __wait_on_buffer+0x1f/0x21
> [   12.401157]  [<ffffffff8116a2dc>] ext4_fill_super+0x373/0x2070

Are you mounting with any interesting options?

-Eric
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