2.6.9-11.ELsmp kernel crashes during boot on Supermicro X6DHE-XG2 motherboard

Problem

When booting the 2.6.9-11.ELsmp kernel (RHEL4 Update 1 or CentOS 4.2) on the Supermicro X6DHE-XG2 motherboard, Linux crashes. This occurs on systems configured with 4GB of memory or higher and software memory hole enabled.

Affected models:

Solution

Disable software memory hole by turning off Advanced->Advanced Chipset Control->Memory Remap Function in the motherboard BIOS. In general, software memory hole should always be disabled because that feature is broken.

http://marc.theaimsgroup.com/?l=linux-kernel&m=112213584216800&w=2