Re: Failure on OM + 2.4.31

Just to followup on this. After a huge amount of messing around with 
hardware, I was able to replace the SATA drives (which required the 
2.4.31 kernel) and use IDE drives. This allowed me to use a 2.4.27 
kernel with patch-2.4.27-om-20041102.bz2 (224713 bytes Nov 6 2004). This 
is a kernel we've been using on another set of hardware.

This older kernel has proven to be completely stable. I can run the full 
range of openMosix Stress-Test tests for hours on end. So my expereience 
is that the later kernel is not stable with any serious amount of work 
thrown at it.


Terry Gliedt wrote:
> I'm trying to bring up an OM cluster on a small cluster of 5 new Dell 
> Optiplex towers. Each runs a 2.4.31 kernel with 
> patch-2.4.31-om-migshm-no-mfs-20050716.bz2 applied. Initially this 
> appeared to work reasonably.
> 
> Then I fetched the openMosix Stress-Test from 
> http://www.openmosixview.com/omtest/ and have attempted to put a little 
> strain on the cluster. Running the first test distkeygen one time with a 
> mosmon in another window appeared to work, I can see the tasks begin and 
> jump to the other 4 nodes.
> 
> I made a small shell script wrapper to cleanup the files and run 
> distkeygen a few hundred times. This will cause the cluster to seize 
> within 5 minutes or so. Everytime. There are no messages I can find 
> anywhere - the only symptom is that the main node stops responding in 
> any fashion. Actually I do not know if the other 4 seize also. I suspect 
> not because after a power off/reboot, they come back just fine.
> 
> Any suggestions of what I might try?  Some other version of OM that is 
> stable?  Your thoughts would be appreciated  TIA
> 


-- 
=============================================================
Terry Gliedt     [email protected]       http://www.hps.com/~tpg/
Biostatistics, Univ of Michigan  Personal Email:  [email protected]


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