Hello Linux SMP folks,
I have dual PII 350 SMP Linux for about 6 months now (Starting with a
RH 5.2 system with the 2.1.26 kernel, upgrading to the 2.2 kernel
tree, then migrating to a full RH 6.0 distribution).
I always roll my own kernels, and after clearing up a problem that I
was having with the APIC (using append="noapic") I have had no significant
problems for 4 or so months. About a month and a half ago I dutifully
upgraded to the 2.2.13 kernel. Soon thereafter I began experiencing
unexplained lockups. Once every 2-3 days on average (though in one
occasion, twice in one day) the computer will hard lock. It will
not respond to the keyboard or mouse and the screen freezes. I
can't correlate this with any particular action. It appears to happen
randomly, since most of the time this computer sits unattended most of
the lock ups happen at night and i just come back to find it frozen,
on serveral occasions the lock ups have occurred when I was using the
machine, but there don't seem to be any systematic trends to when this
will happen (load, SMP usage, disk access, modem use, anything).
The logs don't seem to be of any help either. When I examine them
they show no obvious trend, the computer will be running normally
then the log will show the next restart. Of course since it is a
lock the filesystem is often left unclean so I have occasionally
lost data.
I am writing with two questions.
#1 is anyone aware of a bug or possible misconfiguration that in the 2.2.13
kernel that could be causing this? I target the 2.2.13 becuase the prior
kernels didn't seem to have this problem.
#2 does anyone have any debugging suggestions. I have tried all that I
can think of and I have been sitting on this, hoping that I would see
the fix for this in the next kernel revision (which hasn't come yet) or
at least discussion of similar problems by other users. But I'm getting
sick of this instability!
Thanks for your time.
cheers,
Chris
Who are you? What do you want? Why are you here?
.... Where are you going?
------------------------ Chris Gottbrath ------------------------
http://agave.as.arizona.edu/~chrisg/ [EMAIL PROTECTED]
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