Jens Axboe <axboe@xxxxxxxxx> writes: >> Can you try this patch? It's not perfect, but I'll be interested if it >> makes a difference for you. > Hi Jens, Sorry for the delay. I just got back to this and have been running your patch on top of 4.8 without a crash for over 1 hour. I wanna give it more time to make sure it's running properly, though. Let me get back to you after a few more rounds of test. > This one should handle the WARN_ON() for running the hw queue on the > wrong CPU as well. On the workaround you added to prevent WARN_ON, we surely need to prevent blk_mq_hctx_next_cpu from scheduling dead cpus in the first place, right.. How do you feel about the following RFC? I know it's not a complete fix, but it feels like a good improvement to me. http://www.spinics.net/lists/linux-scsi/msg98608.html -- Gabriel Krisman Bertazi -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
