> From: Dexuan-Linux Cui <dexuan.linux@xxxxxxxxx> > Sent: Tuesday, April 4, 2023 12:55 PM > > On Tue, Mar 21, 2023 at 1:37 AM Petr Tesarik > <petrtesarik@xxxxxxxxxxxxxxx> wrote: > ... > > Hi Petr, this patch has gone into the mainline: > 0eee5ae10256 ("swiotlb: fix slot alignment checks") > > Somehow it breaks Linux VMs on Hyper-V: a regular VM with > swiotlb=force or a confidential VM (which uses swiotlb) fails to boot. > If I revert this patch, everything works fine. The log is pasted below. Looks like the SCSI driver hv_storvsc fails to detect the disk capacity: [ 1.791386] scsi host0: storvsc_host_t [ 1.793653] scsi host0: scsi scan: INQUIRY result too short (5), using 36 [ 1.798733] scsi 0:0:0:0: Direct-Access PQ: 0 ANSI: 0 [ 1.807677] hv_utils: Shutdown IC version 3.2 [ 1.810275] hv_utils: Heartbeat IC version 3.0 [ 1.812777] hv_utils: TimeSync IC version 4.0 [ 1.814877] hv_utils: VSS IC version 5.0 [ 1.818004] input: Microsoft Vmbus HID-compliant Mouse as /devices/0006:045E:0621.0001/input/input1 [ 1.822072] scsi 0:0:1:0: Direct-Access PQ: 0 ANSI: 0 [ 1.825829] hid 0006:045E:0621.0001: input: VIRTUAL HID v0.01 Mouse [Microsoft Vmbus HID-compliant Mouse] on [ 1.831600] scsi 0:1:0:0: Direct-Access PQ: 0 ANSI: 0 [ 1.839110] scsi 0:2:0:0: Direct-Access PQ: 0 ANSI: 0 [ 1.851133] scsi 0:3:0:0: Direct-Access PQ: 0 ANSI: 0 [ 1.858146] scsi 0:4:0:0: Direct-Access PQ: 0 ANSI: 0 [ 1.865251] scsi 0:5:0:0: Direct-Access PQ: 0 ANSI: 0 [ 1.874743] scsi 0:5:1:0: Direct-Access PQ: 0 ANSI: 0 [ 1.882964] scsi 0:6:1:0: Direct-Access PQ: 0 ANSI: 0 [ 1.887850] sd 0:0:0:0: [sda] Sector size 0 reported, assuming 512. [ 1.890168] sd 0:0:0:0: [sda] 1 512-byte logical blocks: (512 B/512 B) [ 1.892370] sd 0:0:0:0: [sda] 0-byte physical blocks [ 1.894382] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 1.899034] sd 0:0:1:0: Attached scsi generic sg1 type 0 [ 1.901143] sd 0:0:1:0: [sdb] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 1.909499] sd 0:0:0:0: [sda] Write Protect is off [ 1.911488] sd 0:0:0:0: [sda] Mode Sense: 0f 00 00 00 [ 1.913549] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#230 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.917776] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#232 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.922358] sd 0:0:0:0: [sda] Asking for cache data failed [ 1.924724] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#233 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.928971] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 1.931454] sd 0:0:1:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 1.935571] sd 0:0:1:0: [sdb] Sense not available. [ 1.937505] sd 0:0:1:0: [sdb] 0 512-byte logical blocks: (0 B/0 B) [ 1.940095] sd 0:0:1:0: [sdb] 0-byte physical blocks [ 1.942268] sd 0:1:0:0: Attached scsi generic sg2 type 0 [ 1.944508] sd 0:1:0:0: [sdc] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 1.948502] sd 0:2:0:0: Attached scsi generic sg3 type 0 [ 1.951059] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#238 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.955212] sd 0:2:0:0: [sdd] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 1.959914] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#243 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.964798] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#244 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.969673] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#242 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.975334] sd 0:1:0:0: [sdc] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 1.980447] sd 0:1:0:0: [sdc] Sense not available. [ 1.983105] sd 0:1:0:0: [sdc] 0 512-byte logical blocks: (0 B/0 B) [ 1.985556] sd 0:1:0:0: [sdc] 0-byte physical blocks [ 1.987686] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#246 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.991294] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#247 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 1.994927] sd 0:2:0:0: [sdd] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 1.998798] sd 0:2:0:0: [sdd] Sense not available. [ 2.000695] sd 0:2:0:0: [sdd] 0 512-byte logical blocks: (0 B/0 B) [ 2.003122] sd 0:2:0:0: [sdd] 0-byte physical blocks [ 2.005154] sd 0:0:1:0: [sdb] Write Protect is off [ 2.007093] sd 0:0:1:0: [sdb] Mode Sense: 00 00 00 00 [ 2.012281] sd 0:0:0:0: [sda] 62914560 512-byte logical blocks: (32.2 GB/30.0 GiB) [ 2.015526] sd 0:0:1:0: [sdb] Asking for cache data failed [ 2.017656] sd 0:0:1:0: [sdb] Assuming drive cache: write through [ 2.022852] scsi 0:3:0:0: Attached scsi generic sg4 type 0 [ 2.025207] sda: detected capacity change from 1 to 62914560 [ 2.027505] sd 0:3:0:0: [sde] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.031552] sd 0:2:0:0: [sdd] Write Protect is off [ 2.033499] sd 0:2:0:0: [sdd] Mode Sense: 00 00 00 00 [ 2.036251] scsi 0:4:0:0: Attached scsi generic sg5 type 0 [ 2.040389] sd 0:1:0:0: [sdc] Write Protect is off [ 2.043462] sd 0:1:0:0: [sdc] Mode Sense: 00 00 00 00 [ 2.048283] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#195 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.055024] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#201 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.061523] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#203 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.065756] sd 0:3:0:0: [sde] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.070088] sd 0:3:0:0: [sde] Sense not available. [ 2.072032] sd 0:3:0:0: [sde] 0 512-byte logical blocks: (0 B/0 B) [ 2.074552] sd 0:3:0:0: [sde] 0-byte physical blocks [ 2.078153] sda: sda1 sda2 [ 2.079438] sd 0:0:0:0: [sda] Attached SCSI disk [ 2.086736] sd 0:2:0:0: [sdd] Asking for cache data failed [ 2.089158] sd 0:2:0:0: [sdd] Assuming drive cache: write through [ 2.091697] scsi 0:5:0:0: Attached scsi generic sg6 type 0 [ 2.097017] sd 0:4:0:0: [sdf] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.106996] sd 0:5:0:0: [sdg] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.116632] sd 0:0:1:0: [sdb] Attached SCSI disk [ 2.121353] sd 0:1:0:0: [sdc] Asking for cache data failed [ 2.124340] sd 0:1:0:0: [sdc] Assuming drive cache: write through [ 2.126908] sd 0:2:0:0: [sdd] Attached SCSI disk [ 2.128933] sd 0:1:0:0: [sdc] Attached SCSI disk [ 2.134829] scsi 0:5:1:0: Attached scsi generic sg7 type 0 [ 2.137257] sd 0:3:0:0: [sde] Write Protect is off [ 2.139505] sd 0:3:0:0: [sde] Mode Sense: 00 00 00 00 [ 2.141599] sd 0:5:1:0: [sdh] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.145592] sd 0:6:1:0: Attached scsi generic sg8 type 0 [ 2.147823] sd 0:6:1:0: [sdi] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.151779] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#218 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.159318] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#228 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.164433] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#229 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.173750] sd 0:5:0:0: [sdg] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.182248] sd 0:5:0:0: [sdg] Sense not available. [ 2.186502] sd 0:5:0:0: [sdg] 0 512-byte logical blocks: (0 B/0 B) [ 2.193049] sd 0:5:0:0: [sdg] 0-byte physical blocks [ 2.199001] sd 0:3:0:0: [sde] Asking for cache data failed [ 2.202651] sd 0:3:0:0: [sde] Assuming drive cache: write through [ 2.205291] tsc: Refined TSC clocksource calibration: 2445.433 MHz [ 2.207988] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x233fde66930, max_idle_ns: 440795269764 ns [ 2.211972] clocksource: Switched to clocksource tsc [ 2.213963] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#215 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.213970] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#223 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.222735] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#231 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.229023] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#232 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.240583] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#233 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.250532] sd 0:4:0:0: [sdf] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.254627] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#234 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.258915] sd 0:4:0:0: [sdf] Sense not available. [ 2.260798] sd 0:4:0:0: [sdf] 0 512-byte logical blocks: (0 B/0 B) [ 2.263232] sd 0:4:0:0: [sdf] 0-byte physical blocks [ 2.265677] sd 0:5:1:0: [sdh] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.269502] sd 0:5:1:0: [sdh] Sense not available. [ 2.271426] sd 0:5:1:0: [sdh] 0 512-byte logical blocks: (0 B/0 B) [ 2.276504] sd 0:5:1:0: [sdh] 0-byte physical blocks [ 2.283703] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#227 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.293754] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#237 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.300010] hv_storvsc 76c5f856-c9ce-4ea3-9d8e-d2bf5ac6747a: tag#238 cmd 0x25 status: scsi 0x0 srb 0x20 hv 0xc0000001 [ 2.305091] sd 0:6:1:0: [sdi] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 2.309634] sd 0:6:1:0: [sdi] Sense not available. [ 2.312133] sd 0:6:1:0: [sdi] 0 512-byte logical blocks: (0 B/0 B) [ 2.315019] sd 0:6:1:0: [sdi] 0-byte physical blocks [ 2.317353] sd 0:4:0:0: [sdf] Write Protect is off [ 2.319615] sd 0:4:0:0: [sdf] Mode Sense: 00 00 00 00 [ 2.321973] sd 0:5:1:0: [sdh] Write Protect is off [ 2.324230] sd 0:5:1:0: [sdh] Mode Sense: 00 00 00 00 [ 2.326818] sd 0:3:0:0: [sde] Attached SCSI disk [ 2.335850] sd 0:4:0:0: [sdf] Asking for cache data failed [ 2.341425] sd 0:4:0:0: [sdf] Assuming drive cache: write through [ 2.352240] sd 0:5:0:0: [sdg] Write Protect is off [ 2.358843] sd 0:5:0:0: [sdg] Mode Sense: 00 00 00 00 [ 2.386333]d 0:5:1:0: [sd Assuming drivcache: write tough [ 2.395290] sd 0:5:0:0: [sdg] Asking for cache data failed [ 2.400239]d 0:5:0:0: [sd Assuming drivcache: write tough [ 2.4585] sd 0:6:1: Write Protects off [ 2.d 0:6:1:0: [sd Mode Sense: 000 00 00 [ 2.440720] sd 0:4:0:0: [sdf] Attached SCSI disk [ 2.450925] sd 0:5:0:0: [sdg] Attached SCSI disk [ 2.470751] sd 0:5:1:0: [sdh] Attached SCSI disk [ 2.474839] sd 0:6:1:0: [sdi] Asking for cache data failed [ 2.478808] sd 0:6:1:0: [sdi] Assuming drive cache: write through [ 2.494906] sd 0:6:1:0: [sdi Attached SCSIisk [ 2.541039] cryptd: max_cpu_qlen set to 1000 [ 2.554484] AVX2 version of gcm_enc/dec engaged. [ 2.561082] AES CTR mode by8 optimization enabled Begin: Loading essential drivers ... [ 3.954725] raid6: avx2x4 gen() 20660 MB/s [ 4.022722] raid6: avx2x2 gen() 21612 MB/s [ 4.090723] raid6: avx2x1 gen() 20625 MB/s [ 4.093012] raid6: using algorithm avx2x2 gen() 21612 MB/s [ 4.162724] raid6: .... xor() 22220 MB/s, rmw enabled [ 4.165476] raid6: using avx2x2 recovery algorithm [ 4.169108] xor: automatically using best checksumming function avx [ 4.174086] async_tx: api initialized (async) done. Begin: Running /scripts/init-premount ... done. Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done. Begin: Running /scripts/local-premount ... [ 4.299146] Btrfs loaded, crc32c=crc32c-intel, zoned=yes, fsverity=yes Scanning for Btrfs filesystems Begin: Waiting for suspend/resume device ... Begin: Running /scripts/local-block ... mdadm: No devices listed in conf file were found. done. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: error opening /dev/md?*: No such file or directory mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. done. Gave up waiting for suspend/resume device done. Begin: Waiting for root file system ... Begin: Running /scripts/local-block ... mdadm: No devices listed in conf file were found. done. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. mdadm: No devices listed in conf file were found. done. Gave up waiting for root file system device. Common problems: - Boot args (cat /proc/cmdline) - Check rootdelay= (did the system wait long enough?) - Missing modules (cat /proc/modules; ls /dev) ALERT! UUID=f4d836dc-a741-45ee-8d4a-09cf96d7ed15 does not exist. Dropping to a shell! BusyBox v1.30.1 (Ubuntu 1:1.30.1-4ubuntu6.4) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs)