Here's a list of functions that cause Debian's 3.1.0 kernel to crash under qemu/kvm for me, found using the script and a fair amount of manual testing (because some of them only crash rarely). This list is probably not exhaustive; Timo's tool could use some tweaking to enable the stress test to be run for longer periods of time and to zero on all the functions that only crash sometimes. * arch_local_irq_enable * arch_local_irq_restore * clts * hash_64 * hash_ptr * inat_get_opcode_attribute * native_safe_halt * native_set_debugreg * native_set_fixmap * outw Sami