Thanks for posting the followup; a lot of people never bother to :) Very much appreciated and noted. On Thu, Oct 14, 2010 at 2:08 PM, Gary E Barnes <gebarnes@xxxxxxxxxx> wrote: > The symptoms were that anywhere from 10 minutes to 10 hours after > rebooting a RHELv4 or RHELv5 machine (one that previous ran RHELv3 with no > problems) would get "slow". Where "slow" means anything up to 30 seconds > to respond to any command typed that has not just previously executed and > a reboot/halt/shutdown would never complete (not even overnight). Other > symptoms were that the system clock would seemingly "stop"---what actually > was happening is that time moved forward for several seconds, then > suddenly would jump backwards several seconds at once. > > The problem was something in the BIOS. Flashing the affected machines > with a newer version of the BIOS fixes the problem. > > To anyone with IBM ThinkCentre 8187 machines, if your BIOS isn't the > latest (2005) version then upgrading would be a good idea if you ever > intend to run Linux on those boxes. > We have eight of those machines. The two running the oldest version > (2003) would not run RHELv4 properly. Others with the 2004 and 2005 > versions were OK. > > Thank you everyone for your suggestions. This time it wasn't NFS (usually > is), or NTP (sometimes), or even I/O handling (rare). It was the > "hardware". > > Gary > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list