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From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Roland Dreier <roland@purestorage.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	scameron@beardog.cce.hp.com, Jon Mason <mason@myri.com>,
	Jesse Barnes <jbarnes@virtuousgeek.org>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
	stephenmcameron@gmail.com, thenzl@redhat.com,
	akpm@linux-foundation.org, mikem@beardog.cce.hp.com
Subject: Re: [BUG] scsi: hpsa: how to destroy your files
Date: Thu, 01 Sep 2011 11:50:38 -0700	[thread overview]
Message-ID: <1314903038.3067.27.camel@dabdike> (raw)
In-Reply-To: <CAL1RGDWu4mBE3=0BC3iNnvfSSuT2pfGrXsBZBU-VB+tqZx7DeA@mail.gmail.com>

On Thu, 2011-09-01 at 10:58 -0700, Roland Dreier wrote:
> > OK I found the bad commit,I got lucky... I lost some files but my
> > machine was able to complete the bisection. CC involved people
> 
> > # bad: [b03e7495a862b028294f59fc87286d6d78ee7fa1] PCI: Set PCI-E Max Payload Size on fabric
> 
> Hi Eric,
> 
> I guess it would be useful to see "lspci -vv" output with a "good" kernel
> and with that bad patch applied.  Most likely we should see some difference
> somewhere in the MaxPayload fields in the PCI Express capability of
> some device.
> 
> Either the RAID controller or something else lies, and puts a value
> in the DevCap that it can't actually support, or else the patch is
> buggy and puts something out of range in a DevCtl somewhere.


While we investigate, I think the problems produced by the patch (data
corruption) are serious enough to warrant reverting it, please Jesse.

Thanks,

James

  reply	other threads:[~2011-09-01 18:50 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-21 18:16 [PATCH] hpsa: do not attempt to read from a write-only register Stephen M. Cameron
2011-07-21 18:17 ` Stephen Cameron
2011-07-22 22:39 ` Andrew Morton
2011-09-01 15:24 ` [BUG] scsi: hpsa: how to destroy your files Eric Dumazet
2011-09-01 16:07   ` scameron
2011-09-01 16:18     ` Eric Dumazet
2011-09-01 17:40     ` Eric Dumazet
2011-09-01 17:58       ` Roland Dreier
2011-09-01 18:50         ` James Bottomley [this message]
2011-09-01 18:58           ` Jesse Barnes
2011-09-01 19:59           ` Jesse Barnes
     [not found]             ` <20110901200349.GO9189@beardog.cce.hp.com>
2011-09-01 20:09               ` Jesse Barnes
2011-09-01 20:44                 ` scameron
2011-09-01 21:50                   ` Jon Mason
2011-09-01 22:01                     ` Eric Dumazet
2011-09-01 22:16                     ` scameron
2011-09-02  5:32                       ` Eric Dumazet
2011-09-02  9:39                     ` Eric Dumazet
2011-09-02 10:08                       ` Eric Dumazet
2011-09-02 15:03                         ` scameron
2011-09-01 19:36         ` Eric Dumazet
2011-09-01 18:01       ` scameron
2011-09-01 19:03         ` scameron
2011-09-02 23:13       ` Andrew Morton
2011-09-02  5:18   ` Mike Galbraith

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