Date: Tue, 12 Aug 2014 15:41:45 +0200 From: Bengt Ahlgren <bengta@sics.se> To: "Steven Hartland" <killing@multiplay.co.uk> Cc: freebsd-scsi@freebsd.org, freebsd-stable@freebsd.org, Garrett Wollman <wollman@bimajority.org> Subject: Re: 9.3-RELEASE still instapanics on multi-mps(4) servers Message-ID: <uh738d1esfa.fsf@P142s.sics.se> In-Reply-To: <4950FD3896C0468D83A599AC104E4D7A@multiplay.co.uk> (Steven Hartland's message of "Mon, 11 Aug 2014 14:54:06 %2B0100") References: <21474.34330.572142.206098@hergotha.csail.mit.edu> <uh7ha1jryjg.fsf@P142s.sics.se> <4950FD3896C0468D83A599AC104E4D7A@multiplay.co.uk>
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"Steven Hartland" <killing@multiplay.co.uk> writes: > ----- Original Message ----- > From: "Bengt Ahlgren" <bengta@sics.se> > > >> Garrett Wollman <wollman@bimajority.org> writes: >> >>> Remember about six months ago when I tested 9-stable on one of my big >>> NFS servers, and had it panic in the middle of the USB probe, but >>> ultimately bisected the problem to an update to the mps(4) driver? I >>> had to stop investigating and get the server working (which I did, by >>> installing 9.2 instead of something newer and presumably >>> faster). I'm >>> at the point now where I'd like to upgrade my file servers to 9.3, >>> and >>> I can't, because of this issue, so it's time to start tracking down >>> the bug again. >>> >>> I have two test servers now. 9.3 works just fine on one of them, and >>> panics on the other. The one it works on is slightly older, and has >>> an mpt(4) controller for the boot drives, as opposed to the system >>> where the panic happens, which is mps(4)-only. Both systems have two >>> SAS2116 controllers for external drives; the ones on the working >>> system have drives attached, and the ones on the non-working system >>> are not connected to anything (and in fact disabled in the BIOS for >>> now). >>> >>> Any experts want to suggest where to start (besides, obviously, >>> attaching a serial console, which I haven't done yet)? I saw one >>> change in the svn logs for 9.3 prior to the release which looked like >>> it might be a relevant fix, but it clearly hasn't improved anything >>> for my servers. >> >> I have a dual-mps (one Dell H200 and one LSI 9207) system now running >> 9.1 (w patched sys/kern/kern_intr.c) that I intend to upgrade to 9.3 >> shortly. Is it enough to boot a 9.3 memstick to provoke the issue? > > I would take this thread with a pinch of salt until it can be proved > its not a hardware issue. I have now tried a 9.3-REL memstick on my server (Dell PE R515). It booted just fine! Bengt
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