Messages in this thread | | | Date | Wed, 8 Mar 2017 12:13:12 +0000 | From | Chris Wilson <> | Subject | Re: [lkp-robot] [locking/ww_mutex] 857811a371: INFO:task_blocked_for_more_than#seconds |
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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
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