Kernel panics on PE6450 and memory>4GB Matt_Domsch at
Tue Mar 12 08:35:00 CST 2002

>   I have a problem getting my large memory to work correctly. 
> I am running
> RH 7.2 with a 2.4.9-Kernel. Booting with a vanilla SMP kernel 
> works OK,
> but then it only has ~3.7G memory available; no problem 
> there, this is how
> it is supposed to be. Using an enterprise kernel, which has the 64GB
> memory support enabled, the machine fails booting the OS and 
> stops with a
> kernel panic. 

What BIOS do you have?  A09, right? :-)   You need either A08 or A10, but
A09 misreports the amount of RAM you've got (it says you've got 4GB + 1M +
8K), so the kernel thinks it can access memory you don't have, and boom.

Either upgrade or downgrade your BIOS by one version, and all will be well.


Matt Domsch
Sr. Software Engineer
Dell Linux Solutions
#1 US Linux Server provider with 24.5% (IDC Dec 2001)
#2 Worldwide Linux Server provider with 18.5% (IDC Dec 2001)

More information about the Linux-PowerEdge mailing list