Public bug reported: It was observed that after a SD card is used, the computer can have a kernel BUG or kernel panic after a partition from removable media is unmounted.
Steps to reproduce: 1) Insert a SD card; 2) Mount the SD card; 3) Unmount the SD card; 4) Eject the SD card; 5) Try mount or unmount partitions from removable media. With panics, there are no saved messages, as syslog get corrupt. But when a BUG happens, the following appears: May 5 19:53:06 Lenovo-ideapad-310-14ISK kernel: [ 302.156578] BUG: unable to handle page fault for address: ffffffff8ec9aa20 The paste with the full BUG can be found at: https://paste.ubuntu.com/p/rtShbPjDrn/ This causes problems consistently with 5.4.0-29-generic. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-29-generic 5.4.0-29.33 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: usuario 1824 F.... pulseaudio CasperMD5CheckResult: skip Date: Tue May 5 19:57:35 2020 HibernationDevice: RESUME=UUID=a82e38a0-8d20-49dd-9cbd-de7216b589fc InstallationDate: Installed on 2017-06-13 (1056 days ago) InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) MachineType: LENOVO 80UG ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro quiet ro kvm.ignore_msrs=1 kvm.report_ignored_msrs=0 kvm.halt_poll_ns=0 kvm.halt_poll_ns_grow=0 i915.enable_gvt=1 resume=UUID=a82e38a0-8d20-49dd-9cbd-de7216b589fc log_buf_len=16M usbhid.quirks=0x0079:0x0006:0x100000 mtrr_gran_size=64M mtrr_chunk_size=64M nbd.nbds_max=2 nbd.max_part=63 cgroup_enable=memory swapaccount=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.4.0-29-generic N/A linux-backports-modules-5.4.0-29-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2019-12-22 (135 days ago) dmi.bios.date: 08/09/2018 dmi.bios.vendor: LENOVO dmi.bios.version: 0XCN45WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Toronto 4A2 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40679 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad 310-14ISK dmi.modalias: dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:svnLENOVO:pn80UG:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK: dmi.product.family: IDEAPAD dmi.product.name: 80UG dmi.product.sku: LENOVO_MT_80UG_BU_idea_FM_Lenovo ideapad 310-14ISK dmi.product.version: Lenovo ideapad 310-14ISK dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- 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/1877003 Title: BUG and panic when ejecting USB devices after a SD card is used at least once Status in linux package in Ubuntu: New Bug description: It was observed that after a SD card is used, the computer can have a kernel BUG or kernel panic after a partition from removable media is unmounted. Steps to reproduce: 1) Insert a SD card; 2) Mount the SD card; 3) Unmount the SD card; 4) Eject the SD card; 5) Try mount or unmount partitions from removable media. With panics, there are no saved messages, as syslog get corrupt. But when a BUG happens, the following appears: May 5 19:53:06 Lenovo-ideapad-310-14ISK kernel: [ 302.156578] BUG: unable to handle page fault for address: ffffffff8ec9aa20 The paste with the full BUG can be found at: https://paste.ubuntu.com/p/rtShbPjDrn/ This causes problems consistently with 5.4.0-29-generic. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-29-generic 5.4.0-29.33 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: usuario 1824 F.... pulseaudio CasperMD5CheckResult: skip Date: Tue May 5 19:57:35 2020 HibernationDevice: RESUME=UUID=a82e38a0-8d20-49dd-9cbd-de7216b589fc InstallationDate: Installed on 2017-06-13 (1056 days ago) InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) MachineType: LENOVO 80UG ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro quiet ro kvm.ignore_msrs=1 kvm.report_ignored_msrs=0 kvm.halt_poll_ns=0 kvm.halt_poll_ns_grow=0 i915.enable_gvt=1 resume=UUID=a82e38a0-8d20-49dd-9cbd-de7216b589fc log_buf_len=16M usbhid.quirks=0x0079:0x0006:0x100000 mtrr_gran_size=64M mtrr_chunk_size=64M nbd.nbds_max=2 nbd.max_part=63 cgroup_enable=memory swapaccount=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.4.0-29-generic N/A linux-backports-modules-5.4.0-29-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2019-12-22 (135 days ago) dmi.bios.date: 08/09/2018 dmi.bios.vendor: LENOVO dmi.bios.version: 0XCN45WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Toronto 4A2 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40679 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad 310-14ISK dmi.modalias: dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:svnLENOVO:pn80UG:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK: dmi.product.family: IDEAPAD dmi.product.name: 80UG dmi.product.sku: LENOVO_MT_80UG_BU_idea_FM_Lenovo ideapad 310-14ISK dmi.product.version: Lenovo ideapad 310-14ISK dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877003/+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
