On Nov 17, 2009, at 1:26 PM, "nate" <centos at linuxpowered.net> wrote: > Jerry Geis wrote: > >> Looking back further in the messages I see this also: >> Nov 17 10:09:21 kernel: Unable to handle kernel NULL pointer >> dereference at virtual address 00000108 > > Often means bad ram.. Or a bad driver. Bad RAM would be much worse though because file systems are memory mapped and having bits flip undetected usually means there is some on disk corruption too. Run memtest and if you find some bad RAM make sure to run fsck. -Ross