Hello I found below error log from dmesg during blktests block/001 on the latest linux-block/for-next, please help check it, thanks. [ 4036.273873] debugfs: Directory 'target13:0:0' with parent 'scsi_debug' already present! [ 4036.275452] scsi 13:0:0:0: Direct-Access Linux scsi_debug 0191 PQ: 0 ANSI: 7 [ 4036.278450] sd 10:0:0:0: [sdb] Preferred minimum I/O size 512 bytes [ 4036.281055] scsi 13:0:0:0: Power-on or device reset occurred --snip-- [ 4038.401691] debugfs: Directory 'target10:0:0' with parent 'scsi_debug' already present! [ 4038.403439] scsi 10:0:0:0: Direct-Access Linux scsi_debug 0191 PQ: 0 ANSI: 7 [ 4038.409814] sd 11:0:0:0: [sde] Synchronizing SCSI cache [ 4038.417776] scsi 10:0:0:0: Power-on or device reset occurred [ 4038.418858] sd 12:0:0:0: Attached scsi generic sg1 type 0 [ 4038.419320] scsi 13:0:0:0: Direct-Access Linux scsi_debug 0191 PQ: 0 ANSI: 7 [ 4038.421092] scsi 11:0:0:0: Direct-Access Linux scsi_debug 0191 PQ: 0 ANSI: 7 [ 4038.424960] scsi 13:0:0:0: Power-on or device reset occurred [ 4038.425373] sd 12:0:0:0: [sdb] 16384 512-byte logical blocks: (8.39 MB/8.00 MiB) [ 4038.427895] scsi 11:0:0:0: Power-on or device reset occurred [ 4038.440374] sd 12:0:0:0: [sdb] Write Protect is off [ 4038.440470] sd 12:0:0:0: [sdb] Mode Sense: 73 00 10 08 [ 4038.440693] sd 12:0:0:0: [sdb] Asking for cache data failed [ 4038.446410] sd 12:0:0:0: [sdb] Assuming drive cache: write through [ 4038.454555] sd 12:0:0:0: [sdb] Preferred minimum I/O size 512 bytes [ 4038.454643] sd 12:0:0:0: [sdb] Optimal transfer size 524288 bytes [ 4038.460898] sd 10:0:0:0: Attached scsi generic sg1 type 0 [ 4038.461989] sd 11:0:0:0: [sdc] 16384 512-byte logical blocks: (8.39 MB/8.00 MiB) [ 4038.462478] sd 10:0:0:0: [sdd] 16384 512-byte logical blocks: (8.39 MB/8.00 MiB) [ 4038.463355] sd 11:0:0:0: [sdc] Write Protect is off [ 4038.463438] sd 11:0:0:0: [sdc] Mode Sense: 73 00 10 08 [ 4038.464098] sd 10:0:0:0: [sdd] Write Protect is off [ 4038.464194] sd 10:0:0:0: [sdd] Mode Sense: 73 00 10 08 [ 4038.465634] sd 13:0:0:0: [sde] 16384 512-byte logical blocks: (8.39 MB/8.00 MiB) [ 4038.465828] sd 13:0:0:0: Attached scsi generic sg2 type 0 [ 4038.466047] sd 11:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 4038.466849] sd 10:0:0:0: [sdd] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 4038.467347] sd 13:0:0:0: [sde] Write Protect is off [ 4038.467432] sd 13:0:0:0: [sde] Mode Sense: 73 00 10 08 [ 4038.470204] sd 13:0:0:0: [sde] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 4038.470270] sd 11:0:0:0: [sdc] Preferred minimum I/O size 512 bytes [ 4038.470353] sd 11:0:0:0: [sdc] Optimal transfer size 524288 bytes [ 4038.471268] sd 10:0:0:0: [sdd] Preferred minimum I/O size 512 bytes [ 4038.471365] sd 10:0:0:0: [sdd] Optimal transfer size 524288 bytes [ 4038.476629] sd 13:0:0:0: [sde] Preferred minimum I/O size 512 bytes [ 4038.476708] sd 13:0:0:0: [sde] Optimal transfer size 524288 bytes [ 4038.478031] sd 11:0:0:0: Attached scsi generic sg3 type 0 [ 4038.522116] sd 12:0:0:0: [sdb] Attached SCSI disk [ 4038.528571] sd 10:0:0:0: [sdd] Attached SCSI disk [ 4038.529208] sd 11:0:0:0: [sdc] Attached SCSI disk -- Best Regards, Yi Zhang
