Date: Thu, 7 May 2009 15:40:04 GMT From: Riccardo Torrini <riccardo.torrini@esaote.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/130330: [mpt] [panic] Panic and reboot machine MPT driver when raid is Degraded. <LSILOGIC 1030 IM 1000> Message-ID: <200905071540.n47Fe4kv006545@freefall.freebsd.org>
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The following reply was made to PR kern/130330; it has been noted by GNATS.
From: Riccardo Torrini <riccardo.torrini@esaote.com>
To: bug-followup@FreeBSD.org, siedar@nplay.pl, jhb@freebsd.org,
scottl@freebsd.org
Cc:
Subject: Re: kern/130330: [mpt] [panic] Panic and reboot machine MPT driver
when raid is Degraded. <LSILOGIC 1030 IM 1000>
Date: Thu, 7 May 2009 17:38:08 +0200
I restricted the time window of the problem doing (a lot of)
build&install world from 2008.07 up to now (read last week).
With 2008.07.28.17.00.00 (7.0-STABLE) works fine but
with 2008.07.28.18.00.00 start crashing removing the
the second disk of a mirror (when the mirror is ok)
or adding the second disk of a degraded ones.
Also note that the same crash happens with all 7.1
stable or release and even all 7.2-PRE I tested.
(wrapping long lines)
# cd /home/ncvs/src/sys/
# grep -R "date.*2008\.07\.28\.17" ./ | grep -v /Attic
./dev/wi/if_wi.c,v:
date 2008.07.28.17.00.37; author imp; state Exp;
./dev/wi/if_wivar.h,v:
date 2008.07.28.17.00.37; author imp; state Exp;
./dev/mpt/mpt_raid.c,v:
date 2008.07.28.17.10.09; author jhb; state Exp;
./dev/mpt/mpt_raid.c,v:
date 2008.07.28.17.05.09; author jhb; state Exp;
./kern/sched_4bsd.c,v:
date 2008.07.28.17.25.24; author jhb; state Exp;
./modules/et/Makefile,v:
date 2008.07.28.17.56.37; author antoine; state Exp;
In that time window there are only 4 file changed in
src/sys/dev, and I bet to mpt_raid.c :-)
This is the commit log extracted from cvsweb
-----8<-----
Revision 1.15.2.1:
Mon Jul 28 17:05:09 2008 UTC (9 months, 1 week ago) by jhb
Branches: RELENG_7
CVS tags: RELENG_7_1_BP
Branch point for: RELENG_7_1
Diff to: previous 1.15: preferred, colored
Changes since revision 1.15: +4 -4 lines
SVN rev 180920 on 2008-07-28 17:05:09Z by jhb
MFC: Allocate a single CCB at the start of the main loop of the RAID
monitoring kthread of the mpt(4) driver.
-----8<-----
Here are the diff:
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/mpt/mpt_raid.c.diff?r1=1.15;r2=1.15.2.1
What can I do now?
--
Riccardo.
Network Manager @ ESAOTE S.p.A.
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