On Wed, Mar 08, 2017 at 09:08:54AM +0800, kernel test robot wrote:
>
> FYI, we noticed the following commit:
>
> commit: 857811a37129f5d2ba162d7be3986eff44724014 ("locking/ww_mutex: Adjust
> the lock number for stress test")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> in testcase: boot
>
> on test machine: qemu-system-i386 -enable-kvm -m 320M
>
> caused below changes (please refer to attached dmesg/kmsg for entire
> log/backtrace):
Now the test is running, it takes too long. :)
wait_for_completion_interruptible() would stop the hung task check? That
leaves NMI watchdog to check if we hit a deadlock between the workers.
And add a timeout to the stress test.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
