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Re: Questions about pagebuf code

To: Russell Cattelan <cattelan@xxxxxxx>
Subject: Re: Questions about pagebuf code
From: Craig Tierney <ctierney@xxxxxxxx>
Date: Tue, 04 May 2004 13:29:53 -0600
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <1083614597.24397.16.camel@naboo.americas.sgi.com>
References: <1083435856.2302.3.camel@localhost.localdomain> <20040501194709.A23768@infradead.org> <1083446482.2302.22.camel@localhost.localdomain> <1083614597.24397.16.camel@naboo.americas.sgi.com>
Sender: linux-xfs-bounce@xxxxxxxxxxx
On Mon, 2004-05-03 at 14:03, Russell Cattelan wrote:
> Look at this bug and see if matches you're situation.
> http://oss.sgi.com/bugzilla/show_bug.cgi?id=198

I ran doublewrite on my server.  I bumped up the threads
to 20 and was easy able to generate a problem.  

I wrote a script that submitted 1 doublewrite process
to each of 20 nodes, to more mimic what I am doing.  I ran
these for 6 hours and did not have a problem.  It could
be that my jobs are putting more of a load on the system,
or the problem isn't the same.

However, since the doublewrite test passes on a uni-processor
kernel, I am rebuilding my kernel and will rerun my test
to see if it works or not.  

The codes might not be the same, but if it is a race condition
there still might be something similar there.


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