On Thu, Jul 10, 2014 at 12:53:36AM +0000, Elliott, Robert (Server Storage) wrote: > the problem still occurs - fio results in low or 0 IOPS, with perf top > reporting unusual amounts of time spent in do_io_submit and io_submit. The diff between the two version doesn't show too much other possible interesting commits, the most interesting being some minor block updates. I guess we'll have to a manual bisect, I've pushed out a scsi-mq.3-bisect-1 branch that is rebased to just before the merge of the block tree, and a scsi-mq.3-bisect-2 branch that is just after the merge of the block tree to get started. -- 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