On Fri, 2018-07-27 at 11:04 -0600, Keith Busch wrote: +AD4- On Fri, Jul 27, 2018 at 04:59:34PM +-0000, Bart Van Assche wrote: +AD4- +AD4- On Fri, 2018-07-27 at 10:57 -0600, Keith Busch wrote: +AD4- +AD4- +AD4- You skip that code if the driver returns BLK+AF8-EH+AF8-DONT+AF8-RESET+AF8-TIMER. +AD4- +AD4- +AD4- +AD4- How about applying the following patch on top of this series? +AD4- +AD4- That works for me if you, but it breaks scsi again when +AD4- scmd+AF8-eh+AF8-abort+AF8-handler completes the command a second time. How about introducing a new request queue flag that chooses between the behavior with or without the patch in my previous e-mail? I don't think that it is possible to come up with a single implementation that covers the needs of NVMe and SCSI without introducing such a flag. If a SCSI request times out then request ownership is transferred from the LLD to the error handler. For the NVMe driver however there is no such transfer of ownership. Bart.