On Tue, Aug 05, 2014 at 07:47:12PM +0000, Handzik, Joe wrote: > Yeah, we thought about that one. We call scsi_activate_tcq if our scsi_device has tagged_supported set within hpsa_change_queue_type (our .change_queue_type entry into the scsi_host_template). Also made sure I was booting with the "scsi_mod.use_blk_mq=Y" option, which makes no difference either way. Can you add some tracing to catch this? On the non-mq path requests start out with ->tag set to -1 and blk_queue_start_tag, which is called from scsi_request_fn sets it up. Adding printks in that area should help you to find the culprit. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
