Regression impacts ServeRAID II on IBM xSeries 5500

David Newall
2009-07-18T07:00:10Z

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]

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>

: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?

Regards,

David