From: Marco Gatti <marco.gatti@gmail.com>
To: Christian Kujau <lists@nerdbynature.de>
Cc: Jeff Mahoney <jeffm@suse.com>, reiserfs-devel@vger.kernel.org
Subject: Re: reiserfs + acl corruption
Date: Tue, 6 Apr 2010 11:40:20 +0200 [thread overview]
Message-ID: <r2r54cce25c1004060240o8f8baf09y5ccb5d7c6791ef53@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.01.1004060136060.29272@bogon.housecafe.de>
2010/4/6 Christian Kujau <lists@nerdbynature.de>:
> On Mon, 5 Apr 2010 at 11:34, Jeff Mahoney wrote:
>> Ok. I'm able to reproduce this with your script. I _can't_ reproduce it
>> with 8 GB of memory, but I can reproduce it with mem=256m. That's a good
>> data point.
>
> On a 8GB machine I can reproduce it with 1000000 files, 500000 files is
> fine. I haven't found out the exact threshold though.
>
> v40z1# free -k
> total used free shared buffers cached
> Mem: 8121176 5497464 2623712 0 718264 1878760
> -/+ buffers/cache: 2900440 5220736
> Swap: 996024 1016 995008
>
>
> Could you comment on the relation to #14826, or is this something
> completely different. I'm getting more and more jdm-20002 in my syslog and
> it's making me kinda nervous...
>
> Thanks,
> Christian.
>
> [0] http://bugzilla.kernel.org/show_bug.cgi?id=14826
Well, I checked the bug #14826 and it seems just the same that happened to me.
I was curious so i reverted to a previous kernel version and i tested 2.6.31.12.
The bug is there and my debian system with 4GB of RAM gives the
Input/Output error managing 300000 files. So, IMHO, this bug is
related to something that changed before 2.6.32.
If i'll have some time i'll check previous versions of already built
kernels i used before and let you know what i found.
If i were you, Christian, backup all your data asap. When corruption
happened to me reiserfsck didn't help at all, even with rebuild-tree
option...
LVM snapshots saved me a lot of work and time!
For the record i was able to verify this bug with setfacl version
2.2.47 and 2.2.49, packaged by debian:
http://packages.debian.org/lenny/acl
The -R option is there for recurse.
Marco
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next prev parent reply other threads:[~2010-04-06 9:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-28 15:29 reiserfs + acl corruption Marco Gatti
2010-03-30 18:16 ` Jeff Mahoney
2010-03-31 14:39 ` dimas
2010-04-04 20:38 ` Christian Kujau
2010-04-05 1:11 ` Christian Kujau
2010-04-05 5:44 ` Christian Kujau
2010-04-05 15:34 ` Jeff Mahoney
2010-04-06 8:40 ` Christian Kujau
2010-04-06 9:40 ` Marco Gatti [this message]
2010-04-06 13:31 ` Marco Gatti
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