On 10/6/20 9:16 PM, Muchun Song wrote: > We should make sure that async workqueue is canceled on exit, but on > some corner case, we found that the async workqueue is not canceled > on exit in the linux-5.4. So we started an in-depth investigation. > Fortunately, we finally found the problem. The commit: > > 1c4404efcf2c ("io_uring: make sure async workqueue is canceled on exit") > > did not completely solve this problem. This patch series to solve this > problem completely. And there's no upstream variant of this commit, so > this patch series is just fix the linux-5.4.y stable branch. Thanks, I'll review/test these and pass them on if good. -- Jens Axboe