linux-ext4 - Re: hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt barrier support is effective)

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Message-ID: <AANLkTi=SgzVcOwqJfAHBe5U+1CuhPnm0eKet4hRM2JKz@mail.gmail.com>
Date:	Fri, 10 Dec 2010 02:53:30 +0100
From:	Matt <jackdachef@...il.com>
To:	Chris Mason <chris.mason@...cle.com>
Cc:	Andi Kleen <andi@...stfloor.org>, Jon Nelson <jnelson@...poni.net>,
	"Ted Ts'o" <tytso@....edu>, Mike Snitzer <snitzer@...hat.com>,
	Milan Broz <mbroz@...hat.com>,
	linux-btrfs <linux-btrfs@...r.kernel.org>,
	dm-devel <dm-devel@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	htd <htd@...cy-poultry.org>, htejun <htejun@...il.com>,
	linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt
 barrier support is effective)

On Fri, Dec 10, 2010 at 2:38 AM, Chris Mason <chris.mason@...cle.com> wrote:
> Excerpts from Andi Kleen's message of 2010-12-09 18:16:16 -0500:
>> > 512MB.
>> >
>> > 'free' reports 75MB, 419MB free.
>> >
>> > I originally noticed the problem on really real hardware (thinkpad
>> > T61p), however.
>>
>> If you can easily reproduce it could you try a git bisect?
>
> Do we have a known good kernel?  I looked back through the thread and
> didn't see any reports where the postgres test on ext4 passed in this
> config.
>
> -chris
>

Try a kernel before 5a87b7a5da250c9be6d757758425dfeaf8ed3179

from the tests I've done that one showed the least or no corruption if
you count the empty /etc/env.d/03opengl as an artefact

(I tested 3 commits in total)


1) 5a87b7a5da250c9be6d757758425dfeaf8ed3179

2) 1de3e3df917459422cb2aecac440febc8879d410

3) bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc

1 -> 3 (earlier -> later)

Regards

Matt
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