Hi, Running the following fio command in Red Hat 6.1 fio --name=myjob --ioengine=libaio --rw=randrw --bs=8k --numjobs=64 --thread --direct=1 --size=400m --directory=/mnt --rwmixread=50 --rwmixwrite=50 --do_verify=1 --verify=md5 --verify_fatal=1 I got the error message: myjob: (groupid=0, jobs=1): err=84 (file:io_u.c:1477, func=io_u_queued_complete, error=Invalid or incomplete multibyte or wide character): pid=29170: Thu Jun 13 11:56:04 2013 fio returns 1280 (0x500) What is the meaning of this error message? Thank you Konstantin -- 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