RHELv4 and v5 - So slow as to be unusable. (Solved)

[Matty Sarro]

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 at us.ibm.com> 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 with a newer version of the BIOS fixes the problem.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
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