On Thu, Jun 26, 2014 at 08:55:19PM +0200, Michael Büsch wrote: > Jun 26 20:47:14 wiggum kernel: [156019.870310] sd 22:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB) > Jun 26 20:47:14 wiggum kernel: [156019.870653] sd 22:0:0:0: [sdb] Write Protect is off > Jun 26 20:47:14 wiggum kernel: [156019.870659] sd 22:0:0:0: [sdb] Mode Sense: 47 00 10 08 The disk says it supports FUA: > Jun 26 20:47:14 wiggum kernel: [156019.870956] sd 22:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA > Jun 26 20:47:14 wiggum kernel: [156019.924517] sdb: sdb1 > Jun 26 20:47:14 wiggum kernel: [156019.928649] sd 22:0:0:0: [sdb] Attached SCSI disk > Jun 26 20:47:27 wiggum kernel: [156032.936896] JBD2: Clearing recovery information on journal > Jun 26 20:47:27 wiggum kernel: [156032.938218] sd 22:0:0:0: [sdb] Invalid command failure > Jun 26 20:47:27 wiggum kernel: [156032.938222] sd 22:0:0:0: [sdb] > Jun 26 20:47:27 wiggum kernel: [156032.938225] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE > Jun 26 20:47:27 wiggum kernel: [156032.938228] sd 22:0:0:0: [sdb] The disk doesn't like the command we sent it: > Jun 26 20:47:27 wiggum kernel: [156032.938230] Sense Key : Illegal Request [current] > Jun 26 20:47:27 wiggum kernel: [156032.938234] sd 22:0:0:0: [sdb] > Jun 26 20:47:27 wiggum kernel: [156032.938237] Add. Sense: Invalid field in cdb Looks like a WRITE(10) with the FUA bit set: > Jun 26 20:47:27 wiggum kernel: [156032.938239] sd 22:0:0:0: [sdb] CDB: > Jun 26 20:47:27 wiggum kernel: [156032.938241] Write(10): 2a 08 1d 04 00 3f 00 00 08 00 > > Does somebody have a hint to debug this? I'd guess the device lies about supporting FUA. There seems to be another report on the Debian lists of the same problem with a similar JMicron enclosure: https://lists.debian.org/debian-user/2014/05/msg02066.html Regards, Bryn. -- 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
