Ok here is much better data, wasn't accounting for the offset in the payload
Working 4.10 [ 1.020041] scsi host0: storvsc_host_t [ 1.024998] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x1 length 36 [ 1.027452] hv_storvsc: payload size 288 count 1 offset 3072 len 36 pfn 0x1f15d0 [ 1.029385] hv_storvsc: sg 0: phys 0x1f15d0000 virt ffff9270b15d0000 offset 0xc00 length 36 [ 1.031720] data: 00000000: 00 00 05 02 1f 00 00 02 4d 73 66 74 20 20 20 20 ........Msft [ 1.033846] data: 00000010: 56 69 72 74 75 61 6c 20 44 69 73 6b 20 20 20 20 Virtual Disk [ 1.036080] data: 00000020: 31 2e 30 20 1.0 [ 1.038249] scsi 0:0:0:0: Direct-Access Msft Virtual Disk 1.0 PQ: 0 ANSI: 5 [ 1.040394] hv_storvsc: INQUIRY cmd 0x12 0x1 0x0 scsi status 0x0 srb status 0x1 length 12 [ 1.041494] scsi host1: storvsc_host_t [ 1.044683] hv_storvsc: payload size 288 count 1 offset 0 len 255 pfn 0x1f0faf [ 1.046940] hv_storvsc: sg 0: phys 0x1f0faf000 virt ffff9270b0faf000 offset 0x0 length 255 [ 1.048555] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x1 length 36 [ 1.048556] hv_storvsc: payload size 288 count 1 offset 2816 len 36 pfn 0x1f15d6 [ 1.048557] hv_storvsc: sg 0: phys 0x1f15d6000 virt ffff9270b15d6000 offset 0xb00 length 36 [ 1.048559] data: 00000000: 05 80 00 02 1f 00 00 00 4d 73 66 74 20 20 20 20 ........Msft [ 1.048560] data: 00000010: 56 69 72 74 75 61 6c 20 44 56 44 2d 52 4f 4d 20 Virtual DVD-ROM [ 1.048560] data: 00000020: 31 2e 30 20 1.0 [ 1.048590] scsi 1:0:0:0: CD-ROM Msft Virtual DVD-ROM 1.0 PQ: 0 ANSI: 0 [ 1.048920] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x20 length 36 [ 1.048920] hv_storvsc: payload size 288 count 1 offset 1024 len 36 pfn 0x1f15d7 [ 1.048921] hv_storvsc: sg 0: phys 0x1f15d7000 virt ffff9270b15d7000 offset 0x400 length 36 [ 1.048922] data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 1.048923] data: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 1.048923] data: 00000020: 00 00 00 00 .... [ 1.048942] scsi host1: scsi scan: INQUIRY result too short (5), using 36 Broken 4.11 [ 1.487930] scsi host0: storvsc_host_t [ 1.541254] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x1 length 36 [ 1.545242] hv_storvsc: payload size 288 count 1 offset 768 len 36 pfn 0x1f1196 [ 1.545242] hv_storvsc: sg 0: phys 0x1f1196000 virt ffff9a42f1196000 offset 0x300 length 36 [ 1.545242] data: 00000000: 00 00 05 02 1f 00 00 02 4d 73 66 74 20 20 20 20 ........Msft [ 1.545242] data: 00000010: 56 69 72 74 75 61 6c 20 44 69 73 6b 20 20 20 20 Virtual Disk [ 1.545242] data: 00000020: 31 2e 30 20 1.0 [ 1.570136] scsi 0:0:0:0: Direct-Access Msft Virtual Disk 1.0 PQ: 0 ANSI: 5 [ 1.571001] scsi host1: storvsc_host_t [ 1.608793] hv_storvsc: INQUIRY cmd 0x12 0x1 0x0 scsi status 0x0 srb status 0x1 length 12 [ 1.610316] hv_storvsc: payload size 288 count 1 offset 0 len 255 pfn 0x1f0577 [ 1.611749] hv_storvsc: sg 0: phys 0x1f0577000 virt ffff9a42f0577000 offset 0x0 length 255 [ 1.612788] data: 00000000: 00 00 00 08 00 83 8f b0 b1 b2 ce cf 72 65 61 74 ............reat [ 1.612788] data: 00000010: 65 5f 66 69 6c 65 00 5f 5f 63 72 63 5f 68 69 64 e_file.__crc_hid [ 1.612788] data: 00000020: 5f 72 65 70 6f 72 74 5f 72 61 77 5f 65 76 65 6e _report_raw_even [ 1.612788] data: 00000030: 74 00 76 66 72 65 65 00 75 6e 72 65 67 69 73 74 t.vfree.unregist [ 1.612788] data: 00000040: 65 72 5f 63 68 72 64 65 76 5f 72 65 67 69 6f 6e er_chrdev_region [ 1.612788] data: 00000050: 00 6d 75 74 65 78 5f 75 6e 6c 6f 63 6b 00 68 69 .mutex_unlock.hi [ 1.612788] data: 00000060: 64 5f 64 65 62 75 67 5f 65 78 69 74 00 6b 6d 65 d_debug_exit.kme [ 1.612788] data: 00000070: 6d 64 75 70 00 68 69 64 72 61 77 5f 65 78 69 74 mdup.hidraw_exit [ 1.612788] data: 00000080: 00 5f 5f 67 65 74 5f 75 73 65 72 5f 34 00 70 6f .__get_user_4.po [ 1.612788] data: 00000090: 77 65 72 5f 73 75 70 70 6c 79 5f 70 6f 77 65 72 wer_supply_power [ 1.612788] data: 000000a0: 73 00 64 65 76 69 63 65 5f 64 65 73 74 72 6f 79 s.device_destroy [ 1.612788] data: 000000b0: 00 5f 5f 63 72 63 5f 68 69 64 5f 73 6e 74 6f 33 .__crc_hid_snto3 [ 1.612788] data: 000000c0: 32 00 63 61 6e 63 65 6c 5f 77 6f 72 6b 5f 73 79 2.cancel_work_sy [ 1.612788] data: 000000d0: 6e 63 00 73 65 71 5f 70 72 69 6e 74 66 00 64 6f nc.seq_printf.do [ 1.612788] data: 000000e0: 77 6e 5f 69 6e 74 65 72 72 75 70 74 69 62 6c 65 wn_interruptible [ 1.612788] data: 000000f0: 00 5f 5f 63 72 63 5f 68 69 64 5f 70 61 72 73 .__crc_hid_pars [ 1.649097] hv_storvsc: INQUIRY cmd 0x12 0x1 0x83 scsi status 0x0 srb status 0x1 length 52 [ 1.649097] random: fast init done [ 1.649097] hv_storvsc: payload size 288 count 1 offset 0 len 255 pfn 0x1f0576 [ 1.649097] hv_storvsc: sg 0: phys 0x1f0576000 virt ffff9a42f0576000 offset 0x0 length 255 [ 1.649097] data: 00000000: 00 83 00 30 01 01 00 18 4d 53 46 54 20 20 20 20 ...0....MSFT [ 1.649097] data: 00000010: 43 77 cc 85 5f 19 c2 46 ac 48 c7 33 b9 dd 2d 2a Cw.._..F.H.3..-* [ 1.649097] data: 00000020: 01 03 00 10 60 02 24 80 43 77 cc 85 5f 19 c7 33 ....`.$.Cw.._..3 [ 1.649097] data: 00000030: b9 dd 2d 2a 5f 55 4e 49 51 55 45 5f 49 44 5f 69 ..-*_UNIQUE_ID_i [ 1.649097] data: 00000040: 67 6e 6f 72 65 5f 73 70 65 63 69 61 6c 5f 64 72 gnore_special_dr [ 1.649097] data: 00000050: 69 76 65 72 73 74 79 70 65 31 34 00 5f 5f 70 61 iverstype14.__pa [ 1.649097] data: 00000060: 72 61 6d 5f 69 67 6e 6f 72 65 5f 73 70 65 63 69 ram_ignore_speci [ 1.649097] data: 00000070: 61 6c 5f 64 72 69 76 65 72 73 00 5f 5f 70 61 72 al_drivers.__par [ 1.649097] data: 00000080: 61 6d 5f 73 74 72 5f 69 67 6e 6f 72 65 5f 73 70 am_str_ignore_sp [ 1.649097] data: 00000090: 65 63 69 61 6c 5f 64 72 69 76 65 72 73 00 5f 5f ecial_drivers.__ [ 1.649097] data: 000000a0: 6b 73 79 6d 74 61 62 5f 68 69 64 5f 64 65 62 75 ksymtab_hid_debu [ 1.649097] data: 000000b0: 67 00 5f 5f 6b 73 74 72 74 61 62 5f 68 69 64 5f g.__kstrtab_hid_ [ 1.649097] data: 000000c0: 64 65 62 75 67 00 5f 5f 55 4e 49 51 55 45 5f 49 debug.__UNIQUE_I [ 1.649097] data: 000000d0: 44 5f 64 65 62 75 67 31 33 00 5f 5f 55 4e 49 51 D_debug13.__UNIQ [ 1.649097] data: 000000e0: 55 45 5f 49 44 5f 64 65 62 75 67 74 79 70 65 31 UE_ID_debugtype1 [ 1.649097] data: 000000f0: 32 00 5f 5f 70 61 72 61 6d 5f 64 65 62 75 67 2.__param_debug [ 1.805271] input: Microsoft Vmbus HID-compliant Mouse as /devices/0006:045E:0621.0001/input/input1 [ 1.805350] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x1 length 36 [ 1.805351] hv_storvsc: payload size 288 count 1 offset 2304 len 36 pfn 0x1f1988 [ 1.805352] hv_storvsc: sg 0: phys 0x1f1988000 virt ffff9a42f1988000 offset 0x900 length 36 [ 1.805353] data: 00000000: 05 80 00 02 1f 00 00 00 4d 73 66 74 20 20 20 20 ........Msft [ 1.805353] data: 00000010: 56 69 72 74 75 61 6c 20 44 56 44 2d 52 4f 4d 20 Virtual DVD-ROM [ 1.805354] data: 00000020: 31 2e 30 20 1.0 [ 1.805379] scsi 1:0:0:0: CD-ROM Msft Virtual DVD-ROM 1.0 PQ: 0 ANSI: 0 [ 1.812926] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x20 length 36 [ 1.812927] hv_storvsc: payload size 288 count 1 offset 2816 len 36 pfn 0x1f198b [ 1.812928] hv_storvsc: sg 0: phys 0x1f198b000 virt ffff9a42f198b000 offset 0xb00 length 36 [ 1.812953] data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 1.812953] data: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 1.812954] data: 00000020: 00 00 00 00 .... [ 1.813258] scsi host1: scsi scan: INQUIRY result too short (5), using 36 [ 1.813271] scsi 1:0:0:1: Direct-Access PQ: 0 ANSI: 0 [ 1.817903] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 srb status 0x20 length 36 [ 1.817921] hv_storvsc: payload size 288 count 1 offset 2048 len 36 pfn 0x1f198a [ 1.817932] hv_storvsc: sg 0: phys 0x1f198a000 virt ffff9a42f198a000 offset 0x800 length 36 [ 1.817940] data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 1.817941] data: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 1.817941] data: 00000020: 00 00 00 00 .... The response from offline DVD device is shorter and contains stale data.
