[ 39.616876] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues to 0. poll_q/nr_hw = (0/1) [ 39.617487] scsi host0: scsi_debug: version 0191 [20210520] dev_size_mb=1024, opts=0x0, submit_queues=1, statistics=0 [ 39.618980] scsi 0:0:0:0: Direct-Access Linux scsi_debug 0191 PQ: 0 ANSI: 7 [ 39.619887] sd 0:0:0:0: Power-on or device reset occurred [ 39.619966] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 39.640497] sd 0:0:0:0: [sda] 2097152 512-byte logical blocks: (1.07 GB/1.00 GiB) [ 39.651417] sd 0:0:0:0: [sda] Write Protect is off [ 39.651754] sd 0:0:0:0: [sda] Mode Sense: 73 00 10 08 [ 39.671881] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 39.703059] sd 0:0:0:0: [sda] Preferred minimum I/O size 512 bytes [ 39.703771] sd 0:0:0:0: [sda] Optimal transfer size 524288 bytes [ 39.868337] sd 0:0:0:0: [sda] Attached SCSI disk [ 40.385695] device-mapper: multipath service-time: version 0.3.0 loaded [ 43.127591] dm-1: detected capacity change from 2097152 to 0