On Tue, May 30, 2017 at 01:24:06PM +0530, Abdul Haleem wrote:

Hi,

Test : stress-ng
Machine : Power 8 Bare Metal
Kernel : 4.12.0-rc3
Config : attached
gcc version: 4.8.5


In file kernel/workqueue.c at line 2041

    /* ensure we're on the correct CPU */
    WARN_ON_ONCE(!(pool->flags & POOL_DISASSOCIATED) &&
             raw_smp_processor_id() != pool->cpu);


WARN_ON_ONCE() is being triggered on Linus mainline kernel (4.12.0-rc3)
when running stress-ng test.


request_module: runaway loop modprobe net-pf-10
request_module: runaway loop modprobe net-pf-10
hrtimer: interrupt took 500359 ns
RT Watchdog Timeout (hard): stress-ng-rlimi[80236]

Paul and Steven reported the same problem a while back.  Debugging on
the following thread.

 http://lkml.kernel.org/r/[off-list ref]

Thanks.

-- 
tejun