I've been running 1.5.3 without poblems for at least a month on this machine.
Today it panicked though. The backtrace printed on screen listed pf functions.
The weird thing is that I can't get a backtrace from the core with kgdb.
Hopefully you'll be more successfull. I've uploaded the kernel & core to my
crash dir on leaf. The kernel is GENERIC.
Happy hunting!
-Richard