From: Christoph Hellwig <hch@infradead.org>
To: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 4/4] V2 xfs: fix deadlock in xfs_rtfree_extent with kernel v2.6.37
Date: Tue, 28 Feb 2012 03:36:38 -0500 [thread overview]
Message-ID: <20120228083638.GC22995@infradead.org> (raw)
In-Reply-To: <33390983.post@talk.nabble.com>
On Sat, Feb 25, 2012 at 07:57:02AM -0800, Kamal Dasu wrote:
>
> Christoph,
>
> I have not been able to create a simple test case for this yet.
>
> Currently the only way I have is to use an a time shift recording
> application
> that stores video streams on a real-time subvolume. Sometimes when such
> a stream is deleted I see the problem. I have not figured out how to create
> a
> test to consistently get allocation where the bit map span multiple extents
> while
> freeing the inode.
>
> I am still trying to come with a simple test case.
> If you have any ideas let me know I will be happy to try it out.
>
> I have also posted a equivalent post for the 3.3 kernel branch.
> http://old.nabble.com/-PATCH--xfs%3A-fix-deadlock-in-xfs_rtfree_extent-with-kernel-v3.x-to33375114.html
That's the mail I replied to :)
Either way - I'd love to get a good test case for it eventually, but for
now let's put in the obvious fix even if we don't have a good
reproducer.
Alex, I'd suggest this is a 3.3-rc issue as it's a regression, even if
an old one.
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prev parent reply other threads:[~2012-02-28 8:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-17 22:46 [PATCH 0/4] xfs: resurrect realtime subvolume support on kernel 2.6.37 kdasu
2012-02-17 22:51 ` [PATCH 1/4] xfs: only lock the rt bitmap inode once per allocation kdasu
2012-02-17 22:55 ` [PATCH 2/4] xfs: fix xfs_get_extsz_hint for a zero extent size hint kdasu
2012-02-17 22:58 ` [PATCH 3/4] xfs: add lockdep annotations for the rt inodes kdasu
2012-02-17 23:00 ` [PATCH 4/4] xfs: fix deadlock in xfs_rtfree_extent with kernel v2.6.37 kdasu
2012-02-19 22:41 ` Christoph Hellwig
2012-02-21 17:22 ` Kamal Dasu
2012-02-23 16:52 ` [PATCH 4/4] V2 " Kamal Dasu
2012-02-25 9:40 ` Christoph Hellwig
2012-02-25 15:46 ` Kamal Dasu
2012-02-28 8:36 ` Christoph Hellwig [this message]
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