@kc, thanks for sharing -- 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 Status in HWE Next: New Status in OEM Priority Project: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux source package in Focal: New Status in linux-oem-5.14 source package in Focal: Fix Committed Status in linux source package in Jammy: In Progress Status in linux-oem-5.14 source package in Jammy: Invalid Bug description: [Impact] 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 [Fix] 2a19b28f7929) blk-mq: cancel blk-mq dispatch work... is the first regression and it lands mainline since v5.16-rc2. After applied https://lore.kernel.org/all/20210816134624.ga24...@lst.de/#r, issue is gone. the patches has beend landed since v5.15-rc1. [Test Case] 1. plug usb driver on the machine. 2. unplug usb driver. 3. check the dmesg if the oops would be shown [Where problems could occur] Medium ~~~ 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. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1958850/+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
