Subject: Re: 2.6.14-rc2-mm1 - ext3 wedging up
From: Dave Kleikamp <shaggy@austin.ibm.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Valdis.Kletnieks@vt.edu, Con Kolivas <kernel@kolivas.org>,
       linux-kernel@vger.kernel.org
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References: <200509221959.j8MJxJsY010193@turing-police.cc.vt.edu>
	 <200509231036.16921.kernel@kolivas.org>
	 <200509230720.j8N7KYGX023826@turing-police.cc.vt.edu>
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Date: Fri, 23 Sep 2005 09:24:26 -0500
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On Fri, 2005-09-23 at 10:45 +0200, Andrea Arcangeli wrote:
> On Fri, Sep 23, 2005 at 03:20:33AM -0400, Valdis.Kletnieks@vt.edu wrote:
> > On Fri, 23 Sep 2005 10:36:16 +1000, Con Kolivas said:
> > 
> > (Adding Andrea to the To: list...)
> > 
> > > On Fri, 23 Sep 2005 05:59, Valdis.Kletnieks@vt.edu wrote:
> > > > Am seeing reproducible wedging up when writing large (20M+) files to an
> > > > ext3 file system.  Oddly enough, if something *else* writes files to the
> > > > file system as well, it will unwedge for a while and make progress.  Also,
> 
> So you get a total hang? I guess there's a bug somewhere...

I get a similar hang running fsx on a jfs file system.
"echo 0 > /proc/sys/vm/dirty_ratio_centisecs" fixes it as well.

Thanks,
Shaggy
-- 
David Kleikamp
IBM Linux Technology Center

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