linux-kernel - Re: mvsas with 3.1

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Message-ID: <CAKaSfQDyU1a641ZMBNNJJABhXBQxhPGH=E6sNoss=2JyYgFusw@mail.gmail.com>
Date:	Wed, 1 Feb 2012 09:01:22 +0000
From:	Simon McNair <simonmcnair@...il.com>
To:	thomas@...llstrom.ca
Cc:	linux-kernel@...r.kernel.org,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	ayan@...vell.com, andy yan <andyysj@...il.com>,
	linux-raid <linux-raid@...r.kernel.org>
Subject: Re: mvsas with 3.1

Hi Thomas,
I've been trying to get an answer to this same question (I have a
supermicro AOC-SASLP-MV8 too).  See my post at
https://lkml.org/lkml/2012/1/30/107  .

My only suggestion is to get a kernel that's pre 2.6.30 (my Thecus
5200 marvell based unit is on 2.6.13 and it seems okay).  If the data
is mission critical I certainly wouldn't be using the latest kernels
in production until it had 6+months in a stress test environment (of
course I'm an obsessive apt-get upgrade which makes me a hypocrite
:-P).

I can see from searching lkml.org  for mvsas that there is a lot of
code going in to this driver and unless your're a linux guru and can
fix these problems I can only suggest you keep anything important on a
=< 2.6.13 kernel and monitor the situation.

Oh, and keep back ups ;-) (again here's me being the hypocrite).

That's my plan :-(

Simon

On 13 January 2012 18:44, Thomas Fjellstrom <thomas@...llstrom.ca> wrote:
> Is there chance this driver will ever be stable? After more than two years I'm
> starting to get extremely frustrated. I don't really have the option at the
> moment to get a new card, otherwise I would, likely a non marvell based
> device.
>
> It actually managed to last 10 days this time though. Which is a record. The
> interesting thing is there are no warnings or errors in dmesg coming from the
> mvsas driver or scsi code. All that's happened is processes lock up when
> trying to write. Reading seems to be fine.
>
> Just to refresh everyone's memory, it's a AOC-SASLP-MV8 card, has a
> MV64460/64461/64462 chipset. And I have 7 (seagate 7200.12 SATA drives hooked
> up).
>
> --
> Thomas Fjellstrom
> thomas@...llstrom.ca
> --
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