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 <[email protected]>
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 <[email protected]>
Signed-off-by: Douglas Gilbert <[email protected]>
Cc: Mike Christie <[email protected]>
Cc: James Bottomley <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
: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
Sorry for the delay,
On Sat, 18 Jul 2009 16:30:00 +0930
David Newall <[email protected]> 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 <[email protected]>
> 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 <[email protected]>
> Signed-off-by: Douglas Gilbert <[email protected]>
> Cc: Mike Christie <[email protected]>
> Cc: James Bottomley <[email protected]>
> Signed-off-by: Jens Axboe <[email protected]>
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?
FUJITA Tomonori wrote:
> Sorry for the delay,
>
No problem. I appreciate your time.
> On Sat, 18 Jul 2009 16:30:00 +0930
> David Newall <[email protected]> wrote:
>
>> 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).
>
It's provided by IBM with their ServeRAID CD, and not available in
source as far as I can discover. The RAID hardware uses Adaptec chips
and I think ipssend was written by them.
>> 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?
I was running Ubuntu's 2.6.28-13-server, but have reverted to their
2.6.27-10-server, that being the latest Ubuntu-provided version on which
ipssend works. The patch which apparently introduced the regression is
for 2.6.27-rc9, which is quite old. The regression was a year ago, and
although I've found quite a few people who have the same problem, I
haven't found any indication of the problem having been previously
reported or bisected, so it's likely the latest version still has the
problem. I am happy to try the latest version of you want.
On Sat, 25 Jul 2009 00:59:05 +0930
David Newall <[email protected]> wrote:
> >> 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?
>
> I was running Ubuntu's 2.6.28-13-server, but have reverted to their
> 2.6.27-10-server, that being the latest Ubuntu-provided version on which
> ipssend works. The patch which apparently introduced the regression is
> for 2.6.27-rc9, which is quite old. The regression was a year ago, and
> although I've found quite a few people who have the same problem, I
> haven't found any indication of the problem having been previously
> reported or bisected, so it's likely the latest version still has the
> problem. I am happy to try the latest version of you want.
I merged lots of changes to sg in 2.6.28. I fixed several bugs due to
it (the last one was merged in 2.6.31-rc3). Can you try the
2.6.31-rc4?
FUJITA Tomonori wrote:
> I merged lots of changes to sg in 2.6.28. I fixed several bugs due to
> it (the last one was merged in 2.6.31-rc3). Can you try the
> 2.6.31-rc4?
>
Yes, that works. Thank you very much.