linux-kernel - Re: Strange read data corruption on ext4/LVM/md

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Message-ID: <20100520160049.1528772b@mjolnir.ossman.eu>
Date:	Thu, 20 May 2010 16:00:49 +0200
From:	Pierre Ossman <pierre-list@...man.eu>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Strange read data corruption on ext4/LVM/md

On Thu, 20 May 2010 12:22:27 +0200
Pierre Ossman <pierre-list@...man.eu> wrote:

> 
> I've since constructed a script that keeps re-running the above over
> all relevant disks and keeps track of how many unique md5 values we
> get. It's been running for about 1.5 hours right now, and here are the
> results so far:
> 
> sdd - 3, sde - 4, sdf - 1, sdb - 1, sdc - 1, 
> 
> sdd and sde are both on the same controller, so the problem you
> mentioned could be relevant.
> 
> I'll let the test run for a few more hours and try moving things off
> that controller later tonight.
> 

The trend continues and the numbers are now 9 and 8 for sdd and sde and
1 for the others.

Rgds
-- 
     -- Pierre Ossman

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