JohnS wrote: > On Wed, 2009-05-27 at 18:03 -0500, Dave Jones wrote: > >> I am experiencing the same issue with random reboots after a 5.3 >> upgrade. Sometimes it will go for days without rebooting then today >> it has rebooted 6 times at random times. I have modified grub.conf to >> go back to 2.6.18-92.1.22.el5xen on my dom0 and my only domU so we >> will see what happens (or hopefully doesn't happen) the next few days. >> >> I have a 3.0 P4 CPU with HT that does not support 64-bit so it's >> running an i686 kernel. > --- > A P4 with HT...? This may not be your problem but I have several P4 > CPUs with HT Enabled. Do you get messages in /var/log/messages/ about > your cpu temp is above thresh hold and that will throttle back cpu 0 or > 1 constanlty? Also just currious are you using "p4-clockmod" driver? On > a reboot that had happened those were the messages I had in my logs. > > JohnStanley > I have heard of HP/Compaq Proliant servers having similar problems, random reboot or system hangs, seems te be a kernel bug from upstream, take a look at these bugzilla tickets https://bugzilla.redhat.com/show_bug.cgi?id=494114 https://bugzilla.redhat.com/show_bug.cgi?id=470202 The two problems have been solved as from test kernel 2.6.18-144, available at http://people.redhat.com/dzickus/el5/ -- Toshaan <toshlinux at gmail.com> - http://www.toshaan.be