On Tue, 21 Mar 2006, Sander wrote: > > The kernel is compiled for x86-64 and SMP (dual core opteron), so if I > understand the NMI watchdog documentation correctly, it is automagically > enabled. Yes. In that case, the lockup is most probably really the PCI bus locking up due to some device not answering. Not a whole lot of debugging help from the kernel on things like that - you won't be able to get any information out of the system without a hardware reset which also tends to clear all memory ;( > Is there anything else I can do to see some crash info? Likely no. Not a lot to do but trying to figure out why the -mm tree works for you (if I recall correctly) by checking which patch breaks things.. > I was not able to let 2.6.16-rc6-mm2 crash yet. > > I'll test 2.6.16-rc6-mm1 now. Yup, narrowing down where exactly things go south is the way to do it. 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