PSEiBlog

This is why, right here:

Gentoo kernel panic while emering courier-imap which triggered PaX
Oh well, the little card saved me a trip to Amsterdam, and the system appears to boot without any troubles after a hardpanic, so I guess that test is out of the way

When you are building a non-generic linux kernel (e.g. when using ‘make menuconfig’), be sure to include the Device Driver for “megaraid_mbox”, otherwise your kernel won’t be able to locate your /dev/sda device!