Public bug reported: Test the proposed 5.14 oem kernel, and get a failure symptom.
Unplug a usb drive from WD19TB docking and a BUG reported in kernel, then the other embedded usb port can't detect usb drive anymore after a while. kernel: usb 5-2.3.3: USB disconnect, device number 5 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000030 kernel: #PF: supervisor read access in kernel mode kernel: #PF: error_code(0x0000) - not-present page kernel: PGD 0 P4D 0 kernel: Oops: 0000 [#1] SMP NOPTI --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu71 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: u 2205 F.... pulseaudio /dev/snd/controlC0: u 2205 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 21.10 InstallationDate: Installed on 2021-04-29 (270 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: Dell Inc. Precision 5750 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.14.0-1021-oem root=UUID=834a3a4a-65e5-44ed-8f1a-4bdd2df3cce2 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.14.0-1021.23-oem 5.14.21 RelatedPackageVersions: linux-restricted-modules-5.14.0-1021-oem N/A linux-backports-modules-5.14.0-1021-oem N/A linux-firmware 1.201.3 Tags: impish Uname: Linux 5.14.0-1021-oem x86_64 UpgradeStatus: Upgraded to impish on 2022-01-06 (18 days ago) UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/18/2021 dmi.bios.release: 1.11 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.11.1 dmi.board.vendor: Dell Inc. dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.11.1:bd11/18/2021:br1.11:svnDellInc.:pnPrecision5750:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:sku0990: dmi.product.family: Precision dmi.product.name: Precision 5750 dmi.product.sku: 0990 dmi.sys.vendor: Dell Inc. ** Affects: linux-oem-5.14 (Ubuntu) Importance: Undecided Status: New ** Tags: apport-collected impish oem-priority originate-from-1958840 ** Attachment added: "kern.log" https://bugs.launchpad.net/bugs/1958850/+attachment/5556988/+files/kern.log ** Tags added: apport-collected impish ** Description changed: Test the proposed 5.14 oem kernel, and get a failure symptom. Unplug a usb drive from WD19TB docking and a BUG reported in kernel, then the other embedded usb port can't detect usb drive anymore after a while. kernel: usb 5-2.3.3: USB disconnect, device number 5 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000030 kernel: #PF: supervisor read access in kernel mode kernel: #PF: error_code(0x0000) - not-present page kernel: PGD 0 P4D 0 kernel: Oops: 0000 [#1] SMP NOPTI + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu71 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: u 2205 F.... pulseaudio + /dev/snd/controlC0: u 2205 F.... pulseaudio + CasperMD5CheckResult: pass + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 21.10 + InstallationDate: Installed on 2021-04-29 (270 days ago) + InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) + MachineType: Dell Inc. Precision 5750 + NonfreeKernelModules: nvidia_modeset nvidia + Package: linux (not installed) + ProcFB: 0 i915drmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.14.0-1021-oem root=UUID=834a3a4a-65e5-44ed-8f1a-4bdd2df3cce2 ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 5.14.0-1021.23-oem 5.14.21 + RelatedPackageVersions: + linux-restricted-modules-5.14.0-1021-oem N/A + linux-backports-modules-5.14.0-1021-oem N/A + linux-firmware 1.201.3 + Tags: impish + Uname: Linux 5.14.0-1021-oem x86_64 + UpgradeStatus: Upgraded to impish on 2022-01-06 (18 days ago) + UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 11/18/2021 + dmi.bios.release: 1.11 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: 1.11.1 + dmi.board.vendor: Dell Inc. + dmi.chassis.type: 10 + dmi.chassis.vendor: Dell Inc. + dmi.modalias: dmi:bvnDellInc.:bvr1.11.1:bd11/18/2021:br1.11:svnDellInc.:pnPrecision5750:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:sku0990: + dmi.product.family: Precision + dmi.product.name: Precision 5750 + dmi.product.sku: 0990 + dmi.sys.vendor: Dell Inc. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1958850 Title: USB port lost function after unplugging usb drive from WD19TB dock Status in linux-oem-5.14 package in Ubuntu: New Bug description: Test the proposed 5.14 oem kernel, and get a failure symptom. Unplug a usb drive from WD19TB docking and a BUG reported in kernel, then the other embedded usb port can't detect usb drive anymore after a while. kernel: usb 5-2.3.3: USB disconnect, device number 5 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000030 kernel: #PF: supervisor read access in kernel mode kernel: #PF: error_code(0x0000) - not-present page kernel: PGD 0 P4D 0 kernel: Oops: 0000 [#1] SMP NOPTI --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu71 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: u 2205 F.... pulseaudio /dev/snd/controlC0: u 2205 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 21.10 InstallationDate: Installed on 2021-04-29 (270 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: Dell Inc. Precision 5750 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.14.0-1021-oem root=UUID=834a3a4a-65e5-44ed-8f1a-4bdd2df3cce2 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.14.0-1021.23-oem 5.14.21 RelatedPackageVersions: linux-restricted-modules-5.14.0-1021-oem N/A linux-backports-modules-5.14.0-1021-oem N/A linux-firmware 1.201.3 Tags: impish Uname: Linux 5.14.0-1021-oem x86_64 UpgradeStatus: Upgraded to impish on 2022-01-06 (18 days ago) UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/18/2021 dmi.bios.release: 1.11 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.11.1 dmi.board.vendor: Dell Inc. dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.11.1:bd11/18/2021:br1.11:svnDellInc.:pnPrecision5750:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:sku0990: dmi.product.family: Precision dmi.product.name: Precision 5750 dmi.product.sku: 0990 dmi.sys.vendor: Dell Inc. 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