[nflug] Kernel Panic Help

[Justin Bennett]

Yeah It's Redhat 2.1 It's a production server that's been around for 
several years. I stay pretty current on the updates, I run them every 
few weeks when it gets about 20. I don't take it down that often. I've 
never had a problem before, even with the latest Redhat kernel and 
updates it did it again. From what I can tell I think it's hardware not 
software. I don't seem to get a consistant error, it happens during peak 
loads, virusscans and backups. I think it may be a overheating issue, 
the raid controller chips were quite hot.

I've got the box open and letting the AC in, I'm not going to try 
tracking it down, especially if it is hardware, the machine is mission 
critical and any downtime will cost us more than replacing it. It's over 
3 years old anyways which is usually our replacement point. I've got a 
new Penguin Computing one going through the approval process.

On a related note if I replace this with a Redhat 4 server, this box has 
several NFS shares, bound to a Redhat 2.1ES NIS server, anyone know of 
any NIS / NFS issues with a Redhat 4 server to Redhat 2.1 or 3 clients. 
In there past there used to be some versioning issues.


Thanks for the info.

Justin Bennett
Network Administrator
Dynabrade, Inc.
8989 Sheridan Dr.
Clarence, NY 14031
 



David J. Andruczyk wrote:
>   Also in those notes,are some things that could be attributed to the
> crash:
>
> - a potential leak of kernel data from ext2 file system handling 
> (CVE-2005-0400, low) 
> - a flaw in IPv4 network TCP and UDP netfilter handling that allowed a 
> local user to cause a denial of service (crash) (CVE-2005-3275,
> important) 
>
> Those two could potentially be triggered leading to the details in the
> OOPs report, (which mentioned ext3) which uses a large portion of ext2
> code) and e1000 (intel gigabit nic's)  
>
> It's also possible that the fault was triggered by another unknown
> cause.
>
> Due to the amount of vulnerabilities and problems listed covered by
> this errata, I'd strongly recommend installing the update (And taking
> care of all other updates at the same time (As redhat states this as
> well) if at all possible)
>
>
>
> Dave J. Andruczyk
>
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