From: Dave Jones <davej@redhat.com>
Subject: Re: torrent hash failures since 3.9.0-rc1
Date: Mon, 11 Mar 2013 16:44:23 -0400
Message-ID: <20130311204423.GA25307@redhat.com>
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 <20130311194159.GB3579@redhat.com>
 <20130311201334.GA444@x4>
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Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org
To: Markus Trippelsdorf <markus@trippelsdorf.de>
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On Mon, Mar 11, 2013 at 09:13:34PM +0100, Markus Trippelsdorf wrote:

 > > Worked fine for me on two separate machines.  Could it be a network problem
 > > perhaps ? If something is mangling the packet before it hits the disk,
 > > that would explain it.  What NIC do you use ?
 > 
 > I normally use ATL1E, but I've dusted off my E100 and the issue is also
 > reproducible on the Intel card.
 
ok, good to rule that out at least.

 > > Or maybe you could isolate it to a filesystem problem using something
 > > like fsx ?
 > 
 > I've found fsx on your homepage, but I've no idea on how to use this
 > tool. Any pointers?

cd to the mount point you want to test, and then 'fsx test' will create
a couple files there, and stress them.

	Dave