linux-kernel - Re: argh! it's reiserfs deadlocking! [was: Re: JFS - real deadlock and lockdep warning (2.6.18-rc5-mm1)]

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Date:	Thu, 14 Sep 2006 09:42:48 -0400
From:	Jeff Mahoney <jeffm@...e.com>
To:	Dave Kleikamp <shaggy@...tin.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	akpm@...l.org, reiserfs-dev@...esys.com, reiserfs-list@...esys.com
Subject: Re: argh! it's reiserfs deadlocking! [was: Re: JFS - real deadlock
 and lockdep warning (2.6.18-rc5-mm1)]

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Mattia Dongili wrote:
> On Wed, Sep 06, 2006 at 05:00:28PM -0500, Dave Kleikamp wrote:
>> I meant to reply to this earlier.  I've had a lot of distractions.
>>
>> On Tue, 2006-09-05 at 22:33 +0200, Mattia Dongili wrote:
>>> Hello,
>>>
>>> as the subject says it's some time[0] I'm experiencing deadlocks[1] (I'm
>>> only tracking -mm, and sporadically using the stable series). I have a
>>> couple of use cases that seem to reliably trigger the deadlock, namely
>>> using Eclipse and Firefox.
> [...]
>>> /dev/hda1 on / type reiserfs (rw)
>>> /dev/hda3 on /usr type reiserfs (rw)
>>> /dev/hda5 on /home type jfs (rw)
>>>
>>> bootlog: http://oioio.altervista.org/linux/dmesg-2.6.18-rc5-mm1-lockdep
>>> config: http://oioio.altervista.org/linux/config-2.6.18-rc5-mm1-lockdep
> 
> Dave,
> 
> I have to apologize. Reiser3 seem to be the one deadlocking here
> actually. Changing /home to reiser4 still deadlocks.
> 
> Now, reiserfs-developers:
> would you want me to keep the filesystem around to try to test patches
> or potential fixes or can I wipe it out?
> The good thing is that the deadlock is 100% repeatable, the bad thing is
> that this laptop has a broken cdrom and I have to take the drive out and
> fsck it via usb1.1 each time. :)
> 
> Thanks


How is it that you arrived on reiser3 and reiser4 deadlocking here?

- -Jeff

- --
Jeff Mahoney
SUSE Labs
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