Date: Thu, 7 May 2009 16:10:03 GMT From: Scott Long <scottl@samsco.org> 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: <200905071610.n47GA32w046039@freefall.freebsd.org>
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The following reply was made to PR kern/130330; it has been noted by GNATS.
From: Scott Long <scottl@samsco.org>
To: Riccardo Torrini <riccardo.torrini@esaote.com>
Cc: bug-followup@FreeBSD.org, siedar@nplay.pl, jhb@FreeBSD.org,
scottl@FreeBSD.org
Subject: Re: kern/130330: [mpt] [panic] Panic and reboot machine MPT driver
when raid is Degraded. <LSILOGIC 1030 IM 1000>
Date: Thu, 07 May 2009 10:03:39 -0600
Riccardo Torrini wrote:
> 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?
>
>
THanks for the report. I'll look at it.
Scott
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