linux-kernel - Re: [BUG] scsi: hpsa: how to destroy your files

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 1 Sep 2011 16:50:45 -0500
From:	Jon Mason <mason@...i.com>
To:	scameron@...rdog.cce.hp.com
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Eric Dumazet <eric.dumazet@...il.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	stephenmcameron@...il.com, thenzl@...hat.com,
	akpm@...ux-foundation.org, mikem@...rdog.cce.hp.com,
	linux-pci@...r.kernel.org, Roland Dreier <roland@...estorage.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>
Subject: Re: [BUG] scsi: hpsa: how to destroy your files

On Thu, Sep 1, 2011 at 3:44 PM,  <scameron@...rdog.cce.hp.com> wrote:
> On Thu, Sep 01, 2011 at 01:09:30PM -0700, Jesse Barnes wrote:
>> On Thu, 1 Sep 2011 15:03:49 -0500
>> scameron@...rdog.cce.hp.com wrote:
>>
>> > On Thu, Sep 01, 2011 at 12:59:38PM -0700, Jesse Barnes wrote:
>> > > On Thu, 01 Sep 2011 11:50:38 -0700
>> > > James Bottomley <James.Bottomley@...senPartnership.com> wrote:
>> > >
>> > > > 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.
>> > >
>> > > Hm I haven't been paying attention to the compromise thread; how should
>> > > I share these changes?  Is master.kernel.org down indefinitely?  Is
>> > > there a new server at kernel.org I can use?
>> >
>> > I can't answer that question, but I would like a copy of your revert
>> > patch(es) to test (as a simple patch --reverse of the original commit on the 3.1-rc4
>> > tree didn't go in cleanly).
>>
>> Attached is the series.  Applies on top of my for-linus branch.
>
> Thanks.  I tried them out vs. 3.1-rc4, and they applied cleanly and
> make things work on my BL460g7.

I believe modifying the MRRS values is what is causing the issues.
Can you try the attached patch and verify that it also resolves the
issue?

Thanks,
Jon

> -- steve
>
>
>
>
>
>

View attachment "mrrs_removal.patch" of type "text/x-patch" (1848 bytes)