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SubjectRe: [syzbot] possible deadlock in worker_thread
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On 2/12/22 09:14, Tetsuo Handa wrote:
> How can reviewing all flush_workqueue(system_long_wq) calls help?

It is allowed to queue blocking actions on system_long_wq.
flush_workqueue(system_long_wq) can make a lower layer (e.g. ib_srp)
wait on a blocking action from a higher layer (e.g. the loop driver) and
thereby cause a deadlock. Hence my proposal to review all
flush_workqueue(system_long_wq) calls.

Thanks,

Bart.

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