While using fio-2.2.4 the following snippet produces a verification error for me on the second fio invocation: fio --bs=4k --ioengine=libaio --direct=1 --verify=meta --iodepth=128 --io_limit=300k --verify_state_save=1 --rw=randwrite --name=write3 --filename=/dev/dm-7 && fio --bs=4k --ioengine=libaio --direct=1 --verify=meta --iodepth=128 --verify_state_load=1 --rw=randread --name=write3 --filename=/dev/dm-7 However if I put the iodepth of the second fio command down to 64 or set io_limit the error goes away. I have also sometimes seen an error that looks similar if the first fio is killed via ctrl-C. Is this to be expected? -- Sitsofe | http://sucs.org/~sits/ -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html