Has anyone else seen any form of in memory or on disk corruption?

[gnn at freebsd.org]

At Fri, 04 Jul 2008 12:10:43 -0700,
Bakul Shah wrote:
> 
> On Fri, 04 Jul 2008 12:58:07 EDT gnn at freebsd.org  wrote:
> > I have hundreds of these files to run this over, and a full check
> > takes about 3 hours, but I usually see some form of corruption within
> > the first 20 minutes.
> > 	...
> > 4) Corruption is seen only after a reboot, if the machines continue to
> > run corruption is never seen again, until another reboot.
> 
> This sounds like a hardware problem....  May be heat related or due
> to a marginal power supply?  Try using a beefier supply on one of
> the systems or removing something to reduce load.  Or increase the
> load by making disks do lots of seeking while you are running unzip
> and running other things at the same time.  To isolate heat related
> problems we used to blow cold air (or hot air) on suspected
> components and see if the problem goes away or gets worse.

These machines are in a brand new data center with more than adequate
cooling and have very beefy power.  

Best,
George