SMP is impossible, w/ or w/o ACPI. FreeBSD 5.3 dies after a while of
doing graphical output with the X11 GUI. I stressed the machine today
with buildworld and build kernel and building openoffice 1.1.4 with
console output and for 15 hours the box was stable as a rock. But
switching to the X11 GUI doing some FireFox jobs (simply surfing the
www) let the system die within minutes. Sometimes I can 'feel' when a
crash is arising, the box is a kind of 'calm' and I can switch to the
console sometimes catching the error message from the debugger, but
sometimes not.
I was having a similar problem with FreeBSD 6.0-RELEASE whereby
the system was totally stable without SMP, and totally stable with SMP
while X wasn't running, but where the system would hang after between zero
and 5 minutes of running X. Sometimes it would lock up even before X got
started. I'm running a dual Athlon system on an Asus A7M266-D.
I fixed the problem by removing modules in /etc/X11/xorg.conf and
found that removing:
Load "dri"
from the "Module" section stopped the freezes, and returned my system to
full stability.
I don't know what the dri module does, so I don't know what I'm
missing, but everything seems to run okay now.
Just in case someone else encounters the parent post with the same
problem,
- Jason Barnes
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