Compaq 1850R freezing, controller issues?

Adam Maloney adam at
Thu May 6 14:30:17 PDT 2004

We are seeing the same issues on Proliant 5500's and 6400's

Under 4.8, the 5500 was rock solid with SMP.  When we upgraded to 4.9 and
later 4.10, we had crashes with SMP on.  With SMP off it works fine under
both 4.9 and 4.10.  (See my earlier posts regarding this box)

With the 6400's under 4.10 with SMP the disk subsystem appears to hang
during any sort of heavy disk activity (we could consistently reproduce the
problem running buildworld).  We have not been able to reproduce this
problem with SMP disabled.  We also ran fine under 5.2.1 with SMP enabled.

I guess our questions for the powers that be are:

Is this issue being addressed, or going to be addressed, in the 4.x

If we can get everything working under 5.2.1, can we count on that to be
stable?  That is, if we make one of these boxes a webserver, and assume it
will always be just a webserver, and can get all of our webserver-like stuff
working on it as 5.2.1, is it unlikely to explode in the near future when
5.2 is updated?


----- Original Message ----- 
From: "Gerald" <bsdlist at>
To: <freebsd-stable at>
Sent: Tuesday, May 04, 2004 9:48 AM
Subject: Re: Compaq 1850R freezing, controller issues?

> On Tue, 27 Apr 2004, Gerald wrote:
> > This machine is the most I've tasked these 1850s to do so far and it has
> > started Freezing shortly after I was forced to put it in production.
> For googlers and others that read this thread. This has been identified as
> being an SMP issue. I installed a kernel without the SMP options and it
> has ceased freezing. It's currently running 4.8-RELEASE.
> 10:32AM  up 5 days, 13:18, 3 users, load averages: 0.34, 0.30, 0.32
> I will try to chase this down further, but for now I have to get back to
> work.
> Thanks to Pete French for suggesting I shut off SMP and other insight
> he's given me in to the Compaqs. Thanks in advance to anyone who replies
> to my questions about what the inode state is that I might be able to help
> the SMP people track down a bug.
> Gerald
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