I experienced a similar issue twice during the last week with Ubuntustudio running with kernel:
5.4.0-58-lowlatency #64-Ubuntu SMP PREEMPT Wed Dec 9 09:48:08 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux The system completely freezes and I have to press the reset button. These are the journal entries: Dez 29 15:05:55 marco-MS-7817 kernel: xhci_hcd 0000:00:14.0: xHCI host controller not responding, assume dead Dez 29 15:05:55 marco-MS-7817 kernel: xhci_hcd 0000:00:14.0: HC died; cleaning up Dez 29 15:05:55 marco-MS-7817 kernel: r8712u 3-1:1.0 wlx485b39ebba55: xmit_bh => driver_stopped or surprise_removed Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWENCODEEXT]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWENCODE]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWENCODEEXT]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWENCODE]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWENCODEEXT]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWENCODE]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCGIWMODE]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWAP]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: ioctl[SIOCSIWESSID]: No such device Dez 29 15:05:57 marco-MS-7817 wpa_supplicant[789]: Could not read interface wlx485b39ebba55 flags: No such device Dez 29 15:06:25 marco-MS-7817 kernel: xhci_hcd 0000:03:00.0: xHCI host controller not responding, assume dead Dez 29 15:06:25 marco-MS-7817 kernel: xhci_hcd 0000:03:00.0: HC died; cleaning up Dez 29 15:06:25 marco-MS-7817 kernel: blk_update_request: I/O error, dev sdb, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 0 prio class 0 Dez 29 15:06:28 marco-MS-7817 kernel: Buffer I/O error on dev sdb1, logical block 30441472, lost sync page write Dez 29 15:06:28 marco-MS-7817 kernel: JBD2: Error -5 detected when updating journal superblock for sdb1-8. Dez 29 15:06:28 marco-MS-7817 kernel: Aborting journal on device sdb1-8. Dez 29 15:06:28 marco-MS-7817 kernel: Buffer I/O error on dev sdb1, logical block 30441472, lost sync page write Dez 29 15:06:28 marco-MS-7817 kernel: JBD2: Error -5 detected when updating journal superblock for sdb1-8. Dez 29 15:06:28 marco-MS-7817 kernel: Buffer I/O error on dev sdc1, logical block 7372800, lost sync page write Dez 29 15:06:28 marco-MS-7817 kernel: JBD2: Error -5 detected when updating journal superblock for sdc1-8. Dez 29 15:06:28 marco-MS-7817 kernel: Aborting journal on device sdc1-8. Dez 29 15:06:28 marco-MS-7817 kernel: Buffer I/O error on dev sdc1, logical block 7372800, lost sync page write Dez 29 15:06:28 marco-MS-7817 kernel: JBD2: Error -5 detected when updating journal superblock for sdc1-8. Dez 29 15:06:28 marco-MS-7817 kernel: Buffer I/O error on dev sdc1, logical block 0, lost sync page write Dez 29 15:06:28 marco-MS-7817 kernel: EXT4-fs (sdc1): I/O error while writing superblock The problems started when I connected a ASUS WLAN stick. I unplugged it now and check if the problem persists. My system: System: Host: marco-MS-7817 Kernel: 5.4.0-58-lowlatency x86_64 bits: 64 Desktop: Xfce 4.14.2 Distro: Ubuntu 20.04.1 LTS (Focal Fossa) Machine: Type: Desktop Mobo: MSI model: H81M-E34 (MS-7817) v: 3.0 serial: <superuser/root required> BIOS: American Megatrends v: 17.5 date: 03/30/2015 CPU: Topology: Quad Core model: Intel Core i5-4460 bits: 64 type: MCP L2 cache: 6144 KiB Speed: 3200 MHz min/max: 800/3200 MHz Core speeds (MHz): 1: 3200 2: 3200 3: 3201 4: 3200 Graphics: Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics driver: i915 v: kernel Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz OpenGL: renderer: Mesa DRI Intel HD Graphics 4600 (HSW GT2) v: 4.5 Mesa 20.0.8 Audio: Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio driver: snd_hda_intel Device-2: BEHRINGER UMC204HD 192k type: USB driver: snd-usb-audio Device-3: AKAI Professional M.I. type: USB driver: hid-generic,snd-usb-audio,usbhid Sound Server: ALSA v: k5.4.0-58-lowlatency Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: d8:cb:8a:e8:e9:99 Drives: Local Storage: total: 523.08 GiB used: 176.46 GiB (33.7%) ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB ID-2: /dev/sdb type: USB vendor: Samsung model: Portable SSD T5 size: 232.89 GiB ID-3: /dev/sdc type: USB vendor: SanDisk model: Ultra size: 57.30 GiB Partition: ID-1: / size: 36.41 GiB used: 14.49 GiB (39.8%) fs: ext4 dev: /dev/sda1 ID-2: /home size: 184.23 GiB used: 85.61 GiB (46.5%) fs: ext4 dev: /dev/sda6 ID-3: swap-1 size: 7.45 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda5 Sensors: System Temperatures: cpu: 30.0 C mobo: N/A Fan Speeds (RPM): N/A Info: Processes: 235 Uptime: 30m Memory: 7.23 GiB used: 1.65 GiB (22.8%) Shell: bash inxi: 3.0.38 -- 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/1908894 Title: USB controllers disconnects after random time Status in linux package in Ubuntu: Confirmed Bug description: Since I installed Ubuntu on my new convertible laptop, I got issues with the USB. Just after boot my USB controller is working properly (I can connect usb sticks, mices, and my internal camera works) and at some point long after it suddenly stop working (mices suddenly stop moving even when used, webcam and sticks no more detected). This can happend few minuts after boot, or several days after. Yet I have not been able to find what triggers the failure. It happends at any time during normal usage of the computer, including during the usb usage. more concrete infos: after failure, I get $ dmesg [ 2671.894099] perf: interrupt took too long (2512 > 2500), lowering kernel.perf_event_max_sample_rate to 79500 [ 3262.197917] xhci_hcd 0000:03:00.3: Mismatch between completed Set TR Deq Ptr command & xHCI internal state. [ 3262.197927] xhci_hcd 0000:03:00.3: ep deq seg = 000000008dafef36, deq ptr = 000000005f96ce32 [ 3262.198052] xhci_hcd 0000:03:00.3: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a address=0x0 flags=0x0000] [ 3267.250397] xhci_hcd 0000:03:00.3: xHCI host not responding to stop endpoint command. [ 3267.250428] xhci_hcd 0000:03:00.3: xHCI host controller not responding, assume dead [ 3267.250463] xhci_hcd 0000:03:00.3: HC died; cleaning up [ 3267.250499] usb 1-3: USB disconnect, device number 2 [ 3267.311251] usb 1-4: USB disconnect, device number 3 and lsusb doesn't show my devices anymore, even the newly inserted ones config: Asus Zenbook flip 14 UM462DA ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-58-generic 5.4.0-58.64 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jimy 1523 F.... pulseaudio /dev/snd/controlC0: jimy 1523 F.... pulseaudio /dev/snd/pcmC1D0p: jimy 1523 F...m pulseaudio /dev/snd/timer: jimy 1523 f.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Mon Dec 21 11:51:08 2020 InstallationDate: Installed on 2020-07-28 (146 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) Lsusb: Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 8087:0a2b Intel Corp. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. ZenBook UX462DA ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=ba0f4ac4-b614-4882-83d6-485690f9a61a ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-58-generic N/A linux-backports-modules-5.4.0-58-generic N/A linux-firmware 1.187.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/28/2020 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX462DA.307 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX462DA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX462DA.307:bd09/28/2020:svnASUSTeKCOMPUTERINC.:pnZenBookUX462DA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX462DA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct31:cvr1.0: dmi.product.family: ZenBook Flip dmi.product.name: ZenBook UX462DA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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