9.3-RELEASE still instapanics on multi-mps(4) servers

[Bengt Ahlgren]

"Steven Hartland" <killing at multiplay.co.uk> writes:

> ----- Original Message ----- 
> From: "Bengt Ahlgren" <bengta at sics.se>
>
>
>> Garrett Wollman <wollman at 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