Comment 4 for bug 1908894

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