Date: Fri, 19 Feb 2010 13:01:38 -0500 From: Charles Owens <cowens@greatbaysoftware.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-hardware@freebsd.org Subject: Re: mptutil(8) segfault on IBM xSeries 3550 Message-ID: <4B7ED202.2030901@greatbaysoftware.com> In-Reply-To: <201002181023.08131.jhb@freebsd.org> References: <4B75AB2D.2090306@greatbaysoftware.com> <4B79C9CB.8060102@greatbaysoftware.com> <201002181023.08131.jhb@freebsd.org>
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John Baldwin wrote: > On Monday 15 February 2010 5:25:15 pm Charles Owens wrote: >> Charles Owens wrote: >>> Howdy, >>> >>> We're working with IBM hardware (xSeries 3550) that has an >>> mpt-based RAID controller... after initial success with testing the >>> mptutil utility, now operations other than "show adapter" and "show >>> volume" are resulting in segfaults. >>> >>> While it was working properly we created and removed volumes several >>> times, force-failed drives, and just generally put it through its >>> paces... and all seemed fine. Then, after a reboot, it suddenly started >>> failing with segfault as described, and nothing we do has helped to get >>> it out of this state (including trying to use the LSI in-BIOS manager to >>> create/delete volumes -- which in and of itself works fine). >>> >>> We found recent thread >>> http://docs.freebsd.org/cgi/mid.cgi?4B56CD4C.80503 and hoped that it >>> might somehow relate... and even tried the patch that John Baldwin >>> posted, but to no avail. >>> >>> Has anyone seen this behavior and/or have a suggested fix or workaround? >>> >>> >>> Here's the output of "mptutil show adapter": >>> >>> mpt0 Adapter: >>> Board Name: SR-BR10i >>> Board Assembly: L3-25116-01H >>> Chip Name: C1068E >>> Chip Revision: UNUSED >>> RAID Levels: RAID0, RAID1, RAID1E >>> RAID0 Stripes: 64K >>> RAID1E Stripes: 64K >>> RAID0 Drives/Vol: 1-10 >>> RAID1 Drives/Vol: 2 >>> RAID1E Drives/Vol: 3-10 >>> >>> >>> This work is being done using FreeBSD 8.0-RELEASE-p2 + PAE. >>> >> >> I should add that the RAID controller in question is the IBM >> ServeRAID-BR10i SAS/SATA Controller which is based on the LSI 1068E >> processor, as described here: >> http://www-01.ibm.com/common/ssi/rep_ca/4/872/ENUSAG09-0104/index.html > > Try this updated patch. It should fix the problems with 'mptutil show drives' > displaying all daX devices in the system rather than just the ones for the > mptX bus. I had incorrectly interpreted the XPT matches as being an AND > rather than an OR. This changes the code to first do a lookup for the logical > "path" (SCSI bus) for mptX devices and then do a second lookup to fetch any > daX devices on that path. I tested it on a machine with an mpt controller and > a USB disk. Unfortunately I wasn't able to test any of the RAID stuff, just > 'show drives'. This mpt(4) controller doesn't support RAID either, so I was > also able to verify the fix you had already tested for cleaning up 'show > adapter' output in that case. > > [patch omitted] John, The patch appears to have resolved the problem. We're still banging on it, but so far it looks very good! Thanks very much! Charles
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