Public bug reported: While I was normally working on my Dell XPS 13 9310 Laptop, noticed that WiFi suddenly got disconnected. Looking at dmesg, noticed that the firmware crashed.
(I am also attaching the entire dmesg output as a file to this bug. ) $ dmesg | grep ath11_k [ 13.826871] ath11k_pci 0000:72:00.0 wlp114s0: renamed from wlan0 [35908.890709] ath11k_pci 0000:72:00.0: firmware crashed: MHI_CB_SYS_ERROR [36170.055770] ath11k_pci 0000:72:00.0: wmi command 12290 timeout [36170.055776] ath11k_pci 0000:72:00.0: failed to send WMI_STOP_SCAN_CMDID [36170.055783] ath11k_pci 0000:72:00.0: failed to stop wmi scan: -11 [36170.055786] ath11k_pci 0000:72:00.0: failed to stop scan: -11 [36170.055788] ath11k_pci 0000:72:00.0: failed to start hw scan: -110 ... ... [36305.230431] ath11k_pci 0000:72:00.0: wmi command 16387 timeout [36305.230436] ath11k_pci 0000:72:00.0: failed to send WMI_PDEV_SET_PARAM cmd [36305.230445] ath11k_pci 0000:72:00.0: failed to enable PMF QOS: (-11 I had to reboot the machine at least 2 times before WiFi started working. In the past, I had noticed WiFi would not work after boot a couple of times, but this is the first time I am seeing it breaking under normal, continuous usage. This is a major reliability issue if WiFi connection keeps breaking in the middle of work like this. Also, this is somewhat similar to the following bugs, but not exactly the same: https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.10/+bug/1944018 (here there is no message 'firmware crashed' but rather some failures from ath11k_pci. Moreover it occurred during suspend and resume. Whereas in my case, the last suspend + resume was at least 3 and half hours before the firmware crash) https://bugs.launchpad.net/ubuntu/+source/linux-signed- oem-5.10/+bug/1942060 (here there is 'firmware crashed' message, but all the error messages after that seem to be different. Moreover it seems to have occurred 56 seconds after system booted, when WiFi network was connected. Whereas I had a uptime of 9 hours and about 6 hours after the last WiFi connection). ** Affects: linux-oem-5.10 (Ubuntu) Importance: Undecided Status: New ** Attachment added: "dmesg_ath11k_firmware_crash.txt" https://bugs.launchpad.net/bugs/1946444/+attachment/5531464/+files/dmesg_ath11k_firmware_crash.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946444 Title: ath11k_pci firmware crashes under regular usage on Dell XPS 13 9310 (no suspend and resume) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.10/+bug/1946444/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
