Creating a logical volume and destroying it fails to discard the volume, on an encrypted installation. This can significantly increase wear on SSDs when a lot of LVs are created and destroyed.
jak@jak-t480s:~:master$ sudo lvcreate -L 10G -n foo ubuntu-vg
Logical volume "foo" created.
jak@jak-t480s:~:master$ sudo strace -e ioctl blkdiscard /dev/ubuntu-vg/foo
ioctl(3, BLKGETSIZE64, [10737418240]) = 0
ioctl(3, BLKSSZGET, [512]) = 0
ioctl(3, BLKGETSIZE64, [10737418240]) = 0
ioctl(3, BLKSSZGET, [512]) = 0
ioctl(3, BLKDISCARD, [0, 10737418240]) = 0
+++ exited with 0 +++
jak@jak-t480s:~:master$ sudo strace -e ioctl lvremove ubuntu-vg/foo
ioctl(3, BLKGETSIZE64, [512110190592]) = 0
ioctl(3, BLKGETSIZE64, [119226368]) = 0
ioctl(3, DM_VERSION, {version=4.0.0, data_size=16384, flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=16384, flags=DM_EXISTS_FLAG}) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0), name="crypt", uuid="CRYPT-LUKS1-c9
12d3ffa2a8470ca2d5b692dce44cf6-crypt", target_count=1, open_count=7, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [510802264064]) = 0
ioctl(4, BLKGETSIZE64, [536870912]) = 0
ioctl(4, BLKGETSIZE64, [119230464]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x1), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=689, data_start=312, dev=makedev(0xfd, 0x1), name="ubuntu--vg-home", uuid="
LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe551v5TRqeQCqIesHAmG1c0dwlmKXl9xMIw", target_count=8, open_count=1, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [767557632]) = 0
ioctl(4, BLKGETSIZE64, [145514496]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x2), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0x2), name="ubuntu--vg-Bilder", uuid
="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55UAS6RI8aa0FetNkIOLdnVWrxmarwmh0e", target_count=1, open_count=1, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [510804361216]) = 0
ioctl(4, BLKGETSIZE64, [160391168]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x3), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=449, data_start=312, dev=makedev(0xfd, 0x3), name="ubuntu--vg-root", uuid="
LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55PolGi3ucaez6iDooYagnyVkjDaQyK0vC", target_count=3, open_count=1, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [104026112]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x4), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0x4), name="ubuntu--vg-swap", uuid="
LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55Lt8YyRRIrjAEwO3RvIiEDEgO4tiB05gc", target_count=1, open_count=2, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [64585728]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x5), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0x5), name="ubuntu--vg-vm--centos",
uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55Me2phVV2rbdcbbe6Jqeg88NBUMiIktwe", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [104030208]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x6), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0x6), name="ubuntu--vg-lxd", uuid="L
VM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55bP231cY9OsazoSfVV0IReQo2bpqJ52hX", target_count=1, open_count=1, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [58073088]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x7), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="L
VM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(4, BLKGETSIZE64, [64626688]) = 0
ioctl(4, BLKGETSIZE64, [251187200]) = 0
ioctl(4, BLKGETSIZE64, [24576]) = 0
ioctl(4, BLKGETSIZE64, [116129792]) = 0
ioctl(4, BLKGETSIZE64, [152182784]) = 0
ioctl(4, BLKGETSIZE64, [24576]) = 0
ioctl(4, BLKGETSIZE64, [164261888]) = 0
ioctl(4, BLKGETSIZE64, [162983936]) = 0
ioctl(4, BLKGETSIZE64, [118456320]) = 0
ioctl(4, BLKGETSIZE64, [147488768]) = 0
ioctl(4, BLKGETSIZE64, [152199168]) = 0
ioctl(4, BLKGETSIZE64, [169254912]) = 0
ioctl(4, BLKGETSIZE64, [147501056]) = 0
ioctl(4, BLKGETSIZE64, [58159104]) = 0
ioctl(4, BLKGETSIZE64, [170778624]) = 0
ioctl(4, BLKGETSIZE64, [145547264]) = 0
ioctl(4, BLKGETSIZE64, [7491584]) = 0
ioctl(4, BLKGETSIZE64, [130760704]) = 0
ioctl(4, BLKGETSIZE64, [72015872]) = 0
ioctl(4, BLKGETSIZE64, [35610624]) = 0
ioctl(4, BLKGETSIZE64, [229629952]) = 0
ioctl(4, BLKGETSIZE64, [72065024]) = 0
ioctl(4, BLKGETSIZE64, [30892032]) = 0
ioctl(4, BLKGETSIZE64, [230596608]) = 0
ioctl(4, BLKGETSIZE64, [53501952]) = 0
ioctl(4, BLKGETSIZE64, [53522432]) = 0
ioctl(4, BLKGETSIZE64, [72974336]) = 0
ioctl(4, BLKGETSIZE64, [140472320]) = 0
ioctl(4, BLKGETSIZE64, [162983936]) = 0
ioctl(4, BLKGETSIZE64, [72069120]) = 0
ioctl(4, BLKGETSIZE64, [228478976]) = 0
ioctl(4, BLKGETSIZE64, [188289024]) = 0
ioctl(4, BLKGETSIZE64, [95731712]) = 0
ioctl(4, BLKGETSIZE64, [67915776]) = 0
ioctl(4, BLKGETSIZE64, [230596608]) = 0
ioctl(4, BLKGETSIZE64, [72765440]) = 0
ioctl(4, BLKGETSIZE64, [94121984]) = 0
ioctl(4, BLKGETSIZE64, [34992128]) = 0
ioctl(4, BLKGETSIZE64, [7491584]) = 0
ioctl(4, BLKGETSIZE64, [30892032]) = 0
ioctl(4, BLKGETSIZE64, [251142144]) = 0
ioctl(4, BLKGETSIZE64, [188170240]) = 0
ioctl(4, BLKGETSIZE64, [67477504]) = 0
ioctl(4, BLKGETSIZE64, [0]) = 0
ioctl(3, DM_TABLE_STATUS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG} => {version=4.43.0, data_size=353, data_start=312, dev=makedev(0xfd, 0), name="crypt", uuid="CRYPT-LUKS1-c912d3ffa2a8470ca2d5b692dce44cf6-crypt", target_count=1, open_count=8, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_NOFLUSH_FLAG, ...}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG|DM_SKIP_BDGET_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG|DM_SKIP_BDGET_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_ACTIVE_PRESENT_FLAG}) = 0
Do you really want to remove and DISCARD active logical volume ubuntu-vg/foo? [y/n]: y
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG|DM_SKIP_BDGET_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_ACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_ACTIVE_PRESENT_FLAG}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_ACTIVE_PRESENT_FLAG}) = 0
ioctl(3, DM_VERSION, {version=4.0.0, data_size=16384, flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=16384, flags=DM_EXISTS_FLAG}) = 0
ioctl(3, DM_TABLE_DEPS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0x7), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG} => {version=4.43.0, data_size=328, data_start=312, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG, ...}) = 0
ioctl(3, DM_TABLE_DEPS, {version=4.0.0, data_size=16384, data_start=312, dev=makedev(0xfd, 0), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG} => {version=4.43.0, data_size=328, data_start=312, dev=makedev(0xfd, 0), name="crypt", uuid="CRYPT-LUKS1-c912d3ffa2a8470ca2d5b692dce44cf6-crypt", target_count=1, open_count=8, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG, ...}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0-real", flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0-real", flags=DM_EXISTS_FLAG}) = -1 ENXIO (No such device or address)
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0-cow", flags=DM_EXISTS_FLAG} => {version=4.43.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0-cow", flags=DM_EXISTS_FLAG}) = -1 ENXIO (No such device or address)
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, dev=makedev(0xfd, 0x7), flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", target_count=1, open_count=0, event_nr=0, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_ACTIVE_PRESENT_FLAG}) = 0
ioctl(3, DM_DEV_REMOVE, {version=4.0.0, data_size=16384, dev=makedev(0xfd, 0x7), event_nr=6305658, flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG} => {version=4.43.0, data_size=305, dev=makedev(0xfd, 0x7), name="ubuntu--vg-foo", uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG|DM_PERSISTENT_DEV_FLAG|DM_SKIP_BDGET_FLAG|DM_UEVENT_GENERATED_FLAG}) = 0
ioctl(3, DM_DEV_STATUS, {version=4.0.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG|DM_SKIP_BDGET_FLAG} => {version=4.43.0, data_size=16384, uuid="LVM-VOD619tlON0EhlOYmUbw4JUMQAnNHe55o3FhgBMf2RZriV5fKsfLEPpGFqL2L7A0", flags=DM_EXISTS_FLAG|DM_SKIP_BDGET_FLAG}) = -1 ENXIO (No such device or address)
ioctl(4, BLKDISCARD, [136009744384, 10737418240]) = -1 EBUSY (Device or resource busy)
/dev/mapper/crypt: BLKDISCARD ioctl at offset 136009744384 size 10737418240 failed: Device or resource busy.
ioctl(5, BLKPBSZGET, [512]) = 0
ioctl(5, BLKSSZGET, [512]) = 0
Logical volume "foo" successfully removed
+++ exited with 0 +++
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-5.11.0-11-generic 5.11.0-11.12
ProcVersionSignature: Ubuntu 5.11.0-11.12-generic 5.11.0
Uname: Linux 5.11.0-11-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu60
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: jak 8321 F.... pulseaudio
/dev/snd/controlC1: jak 8321 F.... pulseaudio
/dev/snd/controlC0: jak 8321 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: GNOME
Date: Mon Mar 22 21:44:18 2021
HibernationDevice: RESUME=none
InstallationDate: Installed on 2018-03-14 (1104 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180313)
MachineType: LENOVO 20L8S02D00
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.11.0-11-generic root=/dev/mapper/ubuntu--vg-root ro rootflags=subvol=@ quiet splash
RelatedPackageVersions:
linux-restricted-modules-5.11.0-11-generic N/A
linux-backports-modules-5.11.0-11-generic N/A
linux-firmware 1.195
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/04/2020
dmi.bios.release: 1.42
dmi.bios.vendor: LENOVO
dmi.bios.version: N22ET65W (1.42 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20L8S02D00
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.20
dmi.modalias: dmi:bvnLENOVO:bvrN22ET65W(1.42):bd06/04/2020:br1.42:efr1.20:svnLENOVO:pn20L8S02D00:pvrThinkPadT480s:rvnLENOVO:rn20L8S02D00:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T480s
dmi.product.name: 20L8S02D00
dmi.product.sku: LENOVO_MT_20L8_BU_Think_FM_ThinkPad T480s
dmi.product.version: ThinkPad T480s
dmi.sys.vendor: LENOVO
This seems to be https:/ /bugzilla. kernel. org/show_ bug.cgi? id=211167