vmware deve's comment for the issue "blk_update_request: I/O error, dev sda, sector 3270728 op 0x9 VM ubuntu-20.04-live-server in ESXi 7.0GA" :
I noticed that when it's happening, abnormal kernel log: [ 0.000000] ? lockdown_lsm_init+0x21/0x25 [ 0.000000] Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7 ..... [ 66.261508] Lockdown: fwupd: /dev/mem,kmem,port is restricted; see man kernel_lockdown.7 [ 233.169823] ata3: SATA link down (SStatus 0 SControl 300) [ 238.577700] ata3: SATA link down (SStatus 0 SControl 300) [ 243.953448] ata3: SATA link down (SStatus 0 SControl 300) [ 243.953455] ata3.00: disabled [ 243.953481] sr 2:0:0:0: rejecting I/O to offline device [ 243.958034] ata3.00: detaching (SCSI 2:0:0:0) [ 304.517077] sd 3:0:0:0: [sda] tag#55 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 304.517081] sd 3:0:0:0: [sda] tag#55 Sense Key : Vendor Specific(9) [current] [ 304.517086] sd 3:0:0:0: [sda] tag#55 <<vendor>>ASC=0x80 <<vendor>>ASCQ=0x85 [ 304.517090] sd 3:0:0:0: [sda] tag#55 CDB: Write same(16) 93 08 00 00 00 00 00 31 e7 e8 00 00 00 18 00 00 [ 304.517100] blk_update_request: I/O error, dev sda, sector 3270632 op 0x9:(WRITE_ZEROES) flags 0x800 phys_seg 0 prio class 0 [ 314.319273] sd 3:0:0:0: [sda] tag#11 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 314.319275] sd 3:0:0:0: [sda] tag#11 Sense Key : Vendor Specific(9) [current] [ 314.319278] sd 3:0:0:0: [sda] tag#11 <<vendor>>ASC=0x80 <<vendor>>ASCQ=0x85 [ 314.319295] sd 3:0:0:0: [sda] tag#11 CDB: Write same(16) 93 08 00 00 00 00 00 31 e8 10 00 00 00 18 00 00 [ 314.319299] blk_update_request: I/O error, dev sda, sector 3270672 op 0x9:(WRITE_ZEROES) flags 0x800 phys_seg 0 prio class 0 And no error log in hostside. Noticed you enabled secure boot in uefi and ubuntu are configured with lockdown vmware@ubuntu:~$ cat /boot/config-5.4.0-26-generic | grep LOCK_DOWN CONFIG_LOCK_DOWN_IN_SECURE_BOOT=y CONFIG_LOCK_DOWN_KERNEL_FORCE_NONE=y So the error should caused by uefi lockdown feature. Please refer to https://mjg59.dreamwidth.org/50577.html for more details. To workaroud this, echo 1 > /proc/sys/kernel/sysrq echo x > /proc/sysrq-trigger or you can use sudo mokutil --disable-validation to disable it. I tried "echo to /proc" way, the error msg disappered. You might try the second way. Anyway, it's an upstream bug. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1856434 Title: blk_update_request: I/O error, dev sdb, sector 976772992 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 Status in linux package in Ubuntu: Confirmed Bug description: 1) Ubuntu 19.10 2) unknown 3) no error 4) error in log app. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: htpc 9157 F.... pulseaudio /dev/snd/controlC1: htpc 9157 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 19.10 InstallationDate: Installed on 2019-10-28 (48 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) IwConfig: lxcbr0 no wireless extensions. lo no wireless extensions. enp3s0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. GA-MA780G-UD3H Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-23-generic root=UUID=0fa008d8-2279-4e78-9043-161b7f514243 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7 RelatedPackageVersions: linux-restricted-modules-5.3.0-23-generic N/A linux-backports-modules-5.3.0-23-generic N/A linux-firmware 1.183.2 RfKill: Tags: wayland-session eoan Uname: Linux 5.3.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 07/13/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F6b dmi.board.name: GA-MA780G-UD3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF6b:bd07/13/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA780G-UD3H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA780G-UD3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: GA-MA780G-UD3H dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856434/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
