linux-kernel - Re: Regression impacts ServeRAID II on IBM xSeries 5500

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Message-Id: <20090723110118N.fujita.tomonori@lab.ntt.co.jp>
Date:	Thu, 23 Jul 2009 11:02:10 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	davidn@...idnewall.com
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	fujita.tomonori@....ntt.co.jp
Subject: Re: Regression impacts ServeRAID II on IBM xSeries 5500

Sorry for the delay,

On Sat, 18 Jul 2009 16:30:00 +0930
David Newall <davidn@...idnewall.com> wrote:

> Hello Fujita-san,
> 
> This is my first time reporting a regression.  I hope I'm doing it right.
> 
> According to "git bisect," your patch
> 10db10d144c0248f285242f79daf6b9de6b00a62 is the first bad commit before
> a regression which affects my ServeRAID II controller.  I get segfault
> running ipssend, which is the program used to interrogate and configure
> the SCSI RAID controller.
> 
>     ipssend[5949]: segfault at 20202020 ip b7ece8b1 sp bfce1d1c error 6 in libc-2.9.so[b7e55000+15c000]

Can I get 'ipssend' source code? I'm not sure what ipssend does (I
guess, it issues some special commands via sg).


> Here's what git output on the final bisect:
> 
>     commit 10db10d144c0248f285242f79daf6b9de6b00a62
>     Author: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
>     Date:   Fri Aug 29 12:32:18 2008 +0200
> 
>         sg: convert the indirect IO path to use the block layer
>         
>         This patch converts the indirect IO path (including mmap IO and old
>         struct sg_header) to use the block layer functions (blk_get_request,
>         blk_execute_rq_nowait, blk_rq_map_user, etc) instead of
>         scsi_execute_async().
>         
>         [Jens: fixed compile error with SCSI logging enabled]
>         
>         Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
>         Signed-off-by: Douglas Gilbert <dougg@...que.net>
>         Cc: Mike Christie <michaelc@...wisc.edu>
>         Cc: James Bottomley <James.Bottomley@...senPartnership.com>
>         Signed-off-by: Jens Axboe <jens.axboe@...cle.com>

Very sorry about that.


>     :040000 040000 a2b5d80fb0a666b49d4bdfc2de3aa15c9d8b1ec7 84a927a0964a616313deb410a1da60dd22e2dc13 M    drivers
>       
> 
> My machine and assistance is at your disposal.  Rather than guess what
> information you want: what can I tell you?

What kernel version do you use, the latest git tree?
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