From: Andrew Morton <akpm@digeo.com>
To: Mark Haverkamp <markh@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Call trace at mm/page-writeback.c in 2.5.47
Date: Wed, 20 Nov 2002 11:07:06 -0800 [thread overview]
Message-ID: <3DDBDD5A.F76AAD0E@digeo.com> (raw)
In-Reply-To: 1037808468.6367.41.camel@markh1.pdx.osdl.net
Mark Haverkamp wrote:
>
> While running a memory stress workload test on a 16 processor numa
> system, I received a number of call traces like the following:
What is the workload? And in which journalling mode was ext3
being used?
Was the workload actually being run against ext3?
> buffer layer error at mm/page-writeback.c:559
> Pass this trace through ksymoops for reporting
> Call Trace:
> [<c013f1fb>] __set_page_dirty_buffers+0x3b/0x150
> [<c012d746>] zap_pte_range+0x1d6/0x2c0
> [<c0183401>] do_get_write_access+0x4a1/0x4d0
> [<c012d89c>] zap_pmd_range+0x6c/0x80
A non-uptodate page mapped into pagetables. I _think_ I
can see how that can happen. If the workload was, say,
bash-shared-mapping...
If it is reproducible, does the removal of the ClearPageUptodate
statement from mm/truncate.c:truncate_complete_page() make it
go away?
Thanks.
next prev parent reply other threads:[~2002-11-20 19:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-20 16:07 Call trace at mm/page-writeback.c in 2.5.47 Mark Haverkamp
2002-11-20 19:07 ` Andrew Morton [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-11-20 21:14 Mark Haverkamp
2002-11-20 22:02 ` Andrew Morton
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