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9e83d5104a
Add a sample module under samples/workqueue/stall_detector/ that reproduces a workqueue stall caused by PF_WQ_WORKER misuse. The module queues two work items on the same per-CPU pool, then clears PF_WQ_WORKER and sleeps in wait_event_idle(), hiding from the concurrency manager and stalling the second work item indefinitely. This is useful for testing the workqueue watchdog stall diagnostics. Signed-off-by: Breno Leitao <leitao@debian.org> Acked-by: Song Liu <song@kernel.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2 lines
20 B
Makefile
2 lines
20 B
Makefile
obj-m += wq_stall.o
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