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From: Lukas Kolbe <lkolbe@TechFak.Uni-Bielefeld.DE>
To: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: Bug 14579 -  Devices disappear... and Bug 14577 - Data corruption with Adaptec
Date: Wed, 18 Nov 2009 14:39:09 +0100	[thread overview]
Message-ID: <20091118133909.GD16440@TechFak.Uni-Bielefeld.DE> (raw)
In-Reply-To: <0D1E8821739E724A86F4D16902CE275C1C93C74A49@inbmail01.lsi.com>

Desai, Kashyap wrote:

>> >Subject line is related to *Adaptec* and there are some places LSI
>> >related issue is pointed out. Little confusing to me. Is it possible to
>> >rewrite what is an issue related to LSI card?
>> 
>> Sorry for that one. This system has an Adaptec Controller for its
>> Storage array and an LSI controller for the tape library. Bug 14577 is
>> about a possible data corruption on 2.6.32-rc6 that seems to be either a
>> hardware error (currently trying to find that out) or a regression in
>> 2.6.32-rc6, as 2.6.30 is very happy with its storage.
>OK. In data corruption condition only LSI driver and controller are
>involved? I mean can I nullify Adaptec controller's roll in your test?

No, it is the other way round. We have 24 1TB Seagate harddisks
connected in a RAID 60 to the adaptec controller, and a Tandberg T80
with two IBM Ultrium-HH4 tape drives connected to the LSI controller.

The system is installed on an LVM volume within the RAID 60.
The data corruption occurs when we try to boot 2.6.32-rc6, we get write
errors and the boot process stops somewhere. So, it seems the data
corruption is related _only_ with the Adaptec Controller, the RAID array
or the harddisks.

>> Finally, the real problem here is Bug 14579 that is about the systems
>> problems when using the tape library.
>> 
>> >From dmesg log I can figure out 3.04.07 is mpt fusion driver version.
>> >Please update LSI driver using latest upstream driver version 3.04.13.
>> And see what a result is.
>> 
>> Thanks for the pointer. Linus' current tree contains 3.04.12 - where can
>> I find 3.04.13?
>
>It is there in 2.6.32-rc5. Not sure in which exact rc version it is
>included, but I have 2.6.32-rc5 tree in my setup and for that kernel
>mptfusion version is 3.104.13

Okay, I grep'ed for 3.04 in the source and only got one reference to the
older version number. But there lies the problem: Unless we can fix the
Adaptec-Bug first (or confirm it is a hardware issue), we can't boot
2.6.32-rc on that machine to test the new LSI driver version. Is it
easily possible to backport/include the mptfusion in 2.6.30?

Thanks for the help and kind regards, 
-- 
Lukas Kolbe


  reply	other threads:[~2009-11-18 13:39 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-11 16:02 Bug 14579 - Devices disappear... and Bug 14577 - Data corruption with Adaptec Lukas Kolbe
2009-11-12 22:58 ` Sascha Frey
2009-11-13 11:59   ` Desai, Kashyap
2009-11-17 14:22     ` Lukas Kolbe
2009-11-18  4:54       ` Desai, Kashyap
2009-11-18 13:39         ` Lukas Kolbe [this message]
2009-11-19  5:13           ` Desai, Kashyap
2009-11-19 10:17             ` Bug 14579 (was: RE: Bug 14579 - Devices disappear... and Bug 14577 - Data corruption with Adaptec) Lukas Kolbe
2009-11-19 10:30               ` Desai, Kashyap
2009-11-19 10:48                 ` Lukas Kolbe
2009-11-19 10:58                   ` Desai, Kashyap
2009-11-19 11:11                     ` Bug 14579 Lukas Kolbe
2010-02-03 13:36                     ` Bug 14579 (was: RE: Bug 14579 - Devices disappear... and Bug 14577 - Data corruption with Adaptec) Lukas Kolbe

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