Re: Regression impacts ServeRAID II on IBM xSeries 5500

FUJITA Tomonori
2009-07-23T02:02:22Z

Sorry for the delay,

On Sat, 18 Jul 2009 16:30:00 +0930
David Newall <davidn@davidnewall.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@lab.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@lab.ntt.co.jp>
> Signed-off-by: Douglas Gilbert <dougg@torque.net>
> Cc: Mike Christie <michaelc@cs.wisc.edu>
> Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
> Signed-off-by: Jens Axboe <jens.axboe@oracle.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?