linux-ext4 - Re: [BUG] ext3: cannot unfreeze a filesystem due to a deadlock

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Message-Id: <20110907162331.371D.61FB500B@jp.fujitsu.com>
Date:	Wed, 07 Sep 2011 16:23:31 +0900
From:	Masayoshi MIZUMA <m.mizuma@...fujitsu.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Jan Kara <jack@...e.cz>, Andrew Morton <akpm@...ux-foundation.org>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [BUG] ext3: cannot unfreeze a filesystem due to a deadlock


(2011/09/07 15:40), Christoph Hellwig wrote:

> On Wed, Sep 07, 2011 at 12:29:30PM +0900, Masayoshi MIZUMA wrote:
> > Hi,
> > 
> > When I checked the freeze feature for ext3 filesystem using fsfreeze
> > command at 3.1.0-rc4, I think the following deadlock problem happened.
> > 
> > How to reproduce:
> >  # mkfs -t ext3 /dev/sdd1
> >  # mount /dev/sdd1 /MNT
> >  # ./fsstress -d /MNT/tmp -n 10 -p 1000 > /dev/null 2>&1 &
> >  # fsfreeze -f /MNT
> >  # fsfreeze -u /MNT
> 
> Can you add this testcase to xfstests?

I don't know how to add this testcase to xfstests much, but I will
try to create it.
Please wait for a while...

Thanks,
Masayoshi


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