On Tue, Aug 31, 2021 at 12:30:57PM +0200, Martin Svec wrote: > Hello Ming, > > thanks a lot. I don't see the patches in 5.10 stable queue yet, is it safe to apply them on top of > 5.10.60 LTS kernel? Yeah, both are fix on 2e315dc07df0 ("blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter") which is in 5.10.60 stable tree, so safe to apply them. Thanks, Ming