On Thu, Aug 18, 2022 at 12:27:04AM -0400, Chris Murphy wrote: > > > On Thu, Aug 18, 2022, at 12:18 AM, Chris Murphy wrote: > > On Thu, Aug 18, 2022, at 12:12 AM, Chris Murphy wrote: > >> On Wed, Aug 17, 2022, at 11:41 PM, Ming Lei wrote: > >> > >>> OK, can you post the blk-mq debugfs log after you trigger it on v5.17? > > Same boot, 3rd log. But the load is above 300 so I kinda need to sysrq+b soon. > > https://drive.google.com/file/d/1375H558kqPTdng439rvG6LuXXWPXLToo/view?usp=sharing > Please test the following patch and see if it makes a difference: diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c index a4f7c101b53b..8e8d77e79dd6 100644 --- a/block/blk-mq-sched.c +++ b/block/blk-mq-sched.c @@ -44,7 +44,10 @@ void __blk_mq_sched_restart(struct blk_mq_hw_ctx *hctx) */ smp_mb(); - blk_mq_run_hw_queue(hctx, true); + if (blk_mq_is_shared_tags(hctx->flags)) + blk_mq_run_hw_queues(hctx->queue, true); + else + blk_mq_run_hw_queue(hctx, true); } static int sched_rq_cmp(void *priv, const struct list_head *a, Thanks, Ming