Only found a virtualized AHCI setup so far without much success. Can you try this (from Chengming Zhou) in the meantime? diff --git a/block/blk-flush.c b/block/blk-flush.c index dba392cf22bec6..5c392a277b9eb2 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -443,7 +443,7 @@ bool blk_insert_flush(struct request *rq) * the post flush, and then just pass the command on. */ blk_rq_init_flush(rq); - rq->flush.seq |= REQ_FSEQ_POSTFLUSH; + rq->flush.seq |= REQ_FSEQ_PREFLUSH; spin_lock_irq(&fq->mq_flush_lock); list_move_tail(&rq->flush.list, &fq->flush_data_in_flight); spin_unlock_irq(&fq->mq_flush_lock);
