From: Chris Mason <chris.mason@oracle.com>
To: Dave Chinner <david@fromorbit.com>
Cc: Jon Nelson <jnelson@jamponi.net>,
Mike Snitzer <snitzer@redhat.com>, Matt <jackdachef@gmail.com>,
Milan Broz <mbroz@redhat.com>, Andi Kleen <andi@firstfloor.org>,
linux-btrfs <linux-btrfs@vger.kernel.org>,
dm-devel <dm-devel@redhat.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
htd <htd@fancy-poultry.org>, htejun <htejun@gmail.com>,
linux-ext4 <linux-ext4@vger.kernel.org>
Subject: Re: hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt barrier support is effective)
Date: Thu, 16 Dec 2010 07:29:58 -0500 [thread overview]
Message-ID: <1292502095-sup-3835@think> (raw)
In-Reply-To: <20101216033718.GM9925@dastard>
Excerpts from Dave Chinner's message of 2010-12-15 22:37:18 -0500:
> On Wed, Dec 08, 2010 at 07:20:24AM -0500, Chris Mason wrote:
> >
> > Usually the trick to reproducing filesystem corruptions is adding memory
> > pressure. The corruption is probably a bad interaction between reads
> > and writes, and we need to make sure the reads actually happen.
> >
> > http://oss.oracle.com/~mason/pin_ram.c
> >
> > gcc -Wall -o pin_ram pin_ram.c
> >
> > pin_ram -m 80%-of-your-ram-in-mb
>
> Implemented in xfstests about 10 years ago:
>
> http://git.kernel.org/?p=fs/xfs/xfstests-dev.git;a=blob;f=src/usemem.c;h=b8794a6b209cebf8dbf312a8ef131e2e54b18d29;hb=HEAD
But mine can use shm! I don't remember adding it, so it must have grown
there while it sat on the oracle servers. Our own special Christmas
magic.
-chris
next prev parent reply other threads:[~2010-12-16 12:31 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20101114205925.GA20451@redhat.com>
[not found] ` <AANLkTi=rVyozmvqCJD1kGqnV3uEn-0ak6B12-O_9XOKJ@mail.gmail.com>
[not found] ` <4CE05A9E.9090204@redhat.com>
[not found] ` <AANLkTimT0t3xqgKdAn7MBPD7ED-9uPS+WJE0z+K8tciu@mail.gmail.com>
[not found] ` <AANLkTik_p0yxQBQ3ehHWYPLfiqxGbSNUT5XUk9dC5-x6@mail.gmail.com>
[not found] ` <20101201165229.GC13415@redhat.com>
[not found] ` <AANLkTinG209iRAXgpNC0vNpn1C02wkYmVfveXRBqsKV-@mail.gmail.com>
[not found] ` <4CF692D1.1010906@redhat.com>
[not found] ` <AANLkTimA2PPXZoOHYgeOEV2ocrojeuBby8MYDYJ1yjx1@mail.gmail.com>
[not found] ` <4CF6B3E8.2000406@redhat.com>
2010-12-01 21:23 ` hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt barrier support is effective) Mike Snitzer
2010-12-02 21:30 ` Matt
2010-12-04 19:18 ` Matt
2010-12-04 19:38 ` Mike Snitzer
2010-12-04 23:47 ` Matt
2010-12-07 14:21 ` Chris Mason
2010-12-07 18:10 ` Jon Nelson
2010-12-07 18:15 ` Chris Mason
2010-12-07 18:22 ` Mike Snitzer
2010-12-07 18:45 ` Jon Nelson
2010-12-07 18:52 ` Chris Mason
2010-12-07 19:34 ` Jon Nelson
2010-12-07 20:02 ` Chris Mason
2010-12-07 20:25 ` Jon Nelson
2010-12-07 20:33 ` Chris Mason
2010-12-07 20:36 ` Jon Nelson
2010-12-07 20:41 ` Chris Mason
2010-12-07 20:48 ` Jon Nelson
2010-12-07 21:02 ` Chris Mason
2010-12-08 3:29 ` Jon Nelson
2010-12-08 8:03 ` hunt for 2.6.37 dm-crypt+ext4 corruption? Milan Broz
2010-12-08 12:20 ` hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt barrier support is effective) Chris Mason
2010-12-16 3:37 ` Dave Chinner
2010-12-16 12:29 ` Chris Mason [this message]
2010-12-08 3:55 ` Jon Nelson
2010-12-07 19:35 ` Ted Ts'o
2010-12-07 21:01 ` Jon Nelson
2010-12-08 3:37 ` Jon Nelson
[not found] ` <AANLkTim8UTkfxXV0AkEfjNq3tcmnrXdh6BQ1ibY5iYPy@mail.gmail.com>
2010-12-08 15:26 ` Jon Nelson
2010-12-09 18:01 ` Ted Ts'o
2010-12-09 18:10 ` Jon Nelson
2010-12-09 20:13 ` Ted Ts'o
2010-12-09 20:38 ` Jon Nelson
[not found] ` <AANLkTik=ivDrBEzg1wQAp5AFzNtRRq1=NpvnowggU=_0@mail.gmail.com>
2010-12-09 23:16 ` Andi Kleen
2010-12-10 1:38 ` Chris Mason
2010-12-10 1:53 ` Matt
2010-12-10 2:38 ` Ted Ts'o
2010-12-10 6:52 ` Jon Nelson
2010-12-10 14:58 ` Jon Nelson
[not found] ` <AANLkTikeiv2jQM5hhghs1Zd2d=5CbRLKMgYvqHqpm76m@mail.gmail.com>
2010-12-10 16:54 ` Jon Nelson
[not found] ` <AANLkTinMt6saGeeX3MbwAzZ-+f6AL5BegeFqyPgGwiDo@mail.gmail.com>
2010-12-11 2:14 ` Jon Nelson
[not found] ` <AANLkTi=cn04WZGMnVX6ie5PSM+9v0tJSSg0kD8_W5N11@mail.gmail.com>
2010-12-12 1:40 ` Ted Ts'o
2010-12-12 2:34 ` Ted Ts'o
2010-12-12 3:16 ` Jon Nelson
[not found] ` <AANLkTim=i8wDnML+K4uGK_neNDCiWxtKGDx01O+3joaE@mail.gmail.com>
2010-12-12 10:18 ` Jon Nelson
[not found] ` <AANLkTinhHTqqpP=pQ8Foyc9xeaZi65GHGHGY51OyZtvF@mail.gmail.com>
2010-12-12 12:43 ` Ted Ts'o
2010-12-12 13:11 ` Jon Nelson
2010-12-13 2:06 ` Ted Ts'o
2010-12-13 18:56 ` Jon Nelson
[not found] ` <AANLkTinMWS-yyzWJ3oBo_KS9jXt4p4pveo+SPTLiWnCt@mail.gmail.com>
2010-12-15 19:15 ` Matt
2010-12-15 19:16 ` Andi Kleen
2010-12-15 19:25 ` Matt
2010-12-15 19:28 ` Matt
2010-12-10 1:58 ` Mike Fedyk
2010-12-10 2:00 ` Chris Mason
2010-12-10 2:05 ` Jon Nelson
2010-12-04 23:52 ` Matt
2010-12-05 10:09 ` Heinz Diehl
2010-12-05 10:21 ` hunt for 2.6.37 dm-crypt+ext4 corruption? Milan Broz
2010-12-05 12:49 ` Heinz Diehl
2010-12-05 13:24 ` [dm-devel] " Theodore Tso
2010-12-05 13:44 ` Matt
2010-12-05 14:02 ` Ted Ts'o
2010-12-05 14:33 ` Heinz Diehl
2010-12-05 20:17 ` Daniel J Blueman
2010-12-06 7:08 ` Heinz Diehl
2010-12-05 20:28 ` Andi Kleen
2010-12-05 21:15 ` Mike Snitzer
2010-12-05 21:42 ` [dm-devel] " Milan Broz
2010-12-06 2:37 ` Valdis.Kletnieks
2011-01-06 15:56 ` Heinz Diehl
2011-01-07 16:45 ` Matt
2010-12-05 13:30 ` hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt barrier support is effective) Matt
2010-12-05 0:57 ` Matt
2010-12-04 20:51 ` Heinz Diehl
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