RE: Multiple server lockups

I am/was having the same problem with one of my Dell PowerEdge servers.  It would mysteriously lock-up for no apparent reason.  It actually appeared to still run some automated processes but it wouldn't allow any logins and the console was dead.  I was running the 2.4.19-27.7.smp kernel.  I tried all sorts of things to try and figure out what was causing it.  I eventually upgraded to the 2.4.20-18.7 kernel.  At the same time I also noticed my / partition was running at 81%.  Now...one would think that would be more than enough free space but I went ahead and created some more free space on /.  So far, the machine has been up for 7 days straight.  A record.  

It was/is very frustrating because there is absolutely no indication of what is causing it.  I talked with Dell (Big help there), ran the low-level hardware diags (nothing), and created a script that would run every 5 minutes to report various things running on the system and still couldn't figure it out.  It's been happening since early April and my users were oh so happy about it.  If you figure it out please let me know.

-Jason

-----Original Message-----
From: Douglas K. Fischer [mailto:[email protected]]
Sent: Tuesday, June 10, 2003 10:59 AM
To: [email protected]
Subject: Multiple server lockups



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Over the past week I have had 3 different production web servers lock up 
with no errors, warnings, or any other indications in any log, process 
accounting, anything (I combed the systems high and low for any indication 
of any abnormal behavior, but everything checks out perfectly fine, 
including hardware diagnostics). They are all Dell PowerEdge servers, but 
different models, different hardware, etc. They all share the same Red Hat 
7.2 configuration. They went through a quarterly patching update in early 
May (including an update to kernel 2.4.18-27.7.x), followed by a security 
update at the end of May (including an update to kernel 2.4.20-13.7).

Has anyone else experienced any such problems with the recent Red Hat 
errata? The only changes to the systems have been these updates. I'm 
hesitant to rollback all these updates, given the security implications, 
but I don't know if I'm going to have any other option if I can't narrow 
down the problem.

Thoughts? Ideas? Suggestions?

Many thanks,

Doug
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