On 2011-04-09 04:56, Rob Landley wrote: > On 03/31/2011 06:09 AM, Jens Axboe wrote: >> On 2011-03-31 12:47, Rob Landley wrote: >>> On 03/31/2011 05:37 AM, Jens Axboe wrote: >>>>>>> Can you send me your .config? >>>>>> >>>>>> It was attached to the first message in this series, here it is again. >>>>>> >>>>>> I update it via "make oldconfig" and hold down return. >>>>>> >>>>>> I boot it via: >>>>>> >>>>>> qemu-system-x86_64 -m 1024 -kernel arch/x86/boot/bzImage \ >>>>>> -hda ~/sid.ext3 -append "root=/dev/hda rw" >>>>> >>>>> Much better, I see the hang now! Now to try and diagnose... >>>> >>>> It seems to hard hang, looks very odd: >>> >>> I should have mentioned that: when it hangs, you can't page back up in >>> the console display anymore. >> >> Data point - only seems to happen on UP. If you add -smp X to kvm, then >> it boots and works just fine. It smells oddly like some sort of irq >> event. >> > > The workaround for this is to disable preemption, by the way. Indeed, I think those bits were mentioned earlier. I will get to this early next week, been away traveling and not back yet. -- Jens Axboe -- To unsubscribe from this list: 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