On Tue, 21 Mar 2006, Sander wrote: > > The system just freezes. Rock solid. No sysrq, no ctrl-alt-del, nothing. Can you enable the NMI watchdog? It could be a PCI bus lockup (in which case nothing will help), but if it's some interrupts-off busy loop (whether due to a spinlock deadlock or due to the driver just spinning) then nmi-watchdog should help. Of course, that requires that you have support for local/io-APIC (ie if UP, please select CONFIG_X86_UP_.*APIC) Linus - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html