From: Andrew Morton <akpm@linux-foundation.org>
To: Jan Kara <jack@suse.cz>
Cc: yinghan@gmail.com, linux-ext4@vger.kernel.org,
linux-kernel@vger.kernel.org, yinghan@google.com,
nickpiggin@yahoo.com.au
Subject: Re: [PATCH] ext2: Fix data corruption for racing writes
Date: Thu, 9 Apr 2009 13:30:30 -0700 [thread overview]
Message-ID: <20090409133030.a7ea94c7.akpm@linux-foundation.org> (raw)
In-Reply-To: <20090406102329.GD31189@duck.suse.cz>
On Mon, 6 Apr 2009 12:23:29 +0200
Jan Kara <jack@suse.cz> wrote:
> >
> > I tried this patch and seems i got deadlock on the truncate_mutex.
> > Here is the message after enabling lockdep. I pasted the same message
> > on the origianal thread.
>
> ...
>
> I don't think this is a deadlock (or is the machine hung?). The thread
> was just waiting for a long time. I'd think that you'll occasionally get
> exactly the same message even without my patch if you stress the machine
> like you do.
>
Well, it's easy to tell the difference
deadlock: system never recovers
long-sucky-delay: system eventually recovers.
Which was it??
next prev parent reply other threads:[~2009-04-09 20:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-02 23:36 [PATCH] ext2: Fix data corruption for racing writes Jan Kara
2009-04-02 23:36 ` [PATCH] ext3: Fix chain verification in ext3_get_blocks() Jan Kara
2009-04-04 0:38 ` [PATCH] ext2: Fix data corruption for racing writes Ying Han
2009-04-06 10:23 ` Jan Kara
2009-04-09 20:30 ` Andrew Morton [this message]
2009-04-09 20:59 ` Ying Han
2009-04-10 18:10 ` Ying Han
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