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SubjectRe: Linux 2.2.2pre4 SMP crash (wait_on_bh)
Try 2.2.2-4 with Ingo Molnar's patch smp-2.2.4-C1 


On 22 Feb 1999, Mark Montague wrote:

> Jordan Mendelson <jordy@wserv.com> writes:
>
> > Simon Kirby wrote:
> > >
> > > On Sat, 20 Feb 1999, Jordan Mendelson wrote:
> > >
> > > > Andrea Arcangeli wrote:
> > > > >
> > > > > On Sat, 20 Feb 1999, Terry Katz wrote:
> > > > >
> > > > > >I've experienced the same problem... 2.2.1, and 2.2.2pre2... There have been
> > > > > >a number of people who have brought this up... No one has really been
> > > > > >helpful in an answer as to how to fix. Linus suggested 2.2.2pre2 to me a
> > > > > >short time ago, but just recently it happened with that so ...
> > > > >
> > > > > Are you using the shaper. The shaper had a SMP race that could cause
> > > > > exactly this kind of SMP hang. I just fixed it and you can find my fix in
> > > > > both linux-kernel and linux-net.
> > > >
> > > > No traffic shaper here.. my current running config is:
> > >
> > > I noticed you are using a buslogic SCSI controller -- the machine that is
> > > having problems here is using an AIC7xxx, so perhaps the low level driver
> > > isn't the problem. What Ethernet card are you using? I noticed
> > > "EEPRO100" in your conf, which is what we are using here.
> >
> > Sounds like the eepro100 is the common factor in 3 cases of this bug
> > I've seen so far. I'll just go through the entire config.
>
> > > Are you running a lot of net traffic through the machine? This machine
> > > that has had the problem 4 times in the last month or so sends ands
> > > receives about 500,000 packets per hour. It sends and receives mail,
> > > handles POP3 clients, runs a big nameserver, and has a few people logged
> > > in occasionally to read mail.
> >
> > Yes, this machine acts as our transparent squid server and also hosts a
> > few high-traffic web sites. However the machine died at 5:30 AM, which
> > is an odd time for most people to be accessing this machine.
> >
> > This box was stable, it just recently started to crash with 2.2.x's with
> > this particular error, so it seems to be a kernel problem as far as I
> > can tell.
>
> I've been seeing strange lockups (including the "2nd half of an oops I
> reported earlier) with pre2 and pre5, and I also have an EEPRO100
> running on an SMP (dual ppro200). My machine has a relatively light
> load, but is on a busy network. I also saw a strange confusion in ppp
> connectivity; it was losing packets ~50% of the time, and *very* slow
> the rest. I couldn't figure out what exactly was up, and rebooting
> fixed it, and it hasn't been back.
>
> Anyway, one more data point for EEPRO100... I'm going to try 2.2.2
> tomorrow.
>
> - M
>
> -=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=-
> Mark "Monty" Montague | monty@gg.caltech.edu | I don't do Windows(tm)
> -=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=-
> DON'T PANIC! I'm a trained professional, and far more | *Why* question
> qualified to panic in this situation than you are. | authority?
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>
>
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Goofy McGoon


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