Date: Fri, 19 Feb 2010 13:15:13 -0500 From: John Baldwin <jhb@freebsd.org> To: Charles Owens <cowens@greatbaysoftware.com> Cc: freebsd-hardware@freebsd.org Subject: Re: mptutil(8) segfault on IBM xSeries 3550 Message-ID: <201002191315.13796.jhb@freebsd.org> In-Reply-To: <4B7ED202.2030901@greatbaysoftware.com> References: <4B75AB2D.2090306@greatbaysoftware.com> <201002181023.08131.jhb@freebsd.org> <4B7ED202.2030901@greatbaysoftware.com>
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On Friday 19 February 2010 1:01:38 pm Charles Owens wrote: > 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! Excellent, thanks! I've committed it to HEAD and will MFC it in a week or so. It is probably too late to make 7.3 however. -- John Baldwin
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