This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1777850 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/1777850 Title: Redpine: Observed kernel panic while when running soft-ap tests Status in linux package in Ubuntu: Incomplete Bug description: SRU Justification: ------------------ Impact: Kernel freezes/panic when running wireless tests for soft-ap Test case: 1. Create a soft-ap upon reboot. 2. Install Checkbox plano and : $ sudo snap install --devmode checkbox-plano 3. Run below wifi-ap test case $ checkbox-plano.checkbox-cli run .*device .*wireless/caracalla-wifi_ap_.*wlan0_auto 4. Upon 3-4 iteraions, observed kernel crash as below, [ 718.83244] BUG: unable to handle page request at 00000000001067e38 [ 718.83248] IP: cfg80211_scan_done+0xb0/0xc0 [cfg80211] [ 718.83971] __ieee80211_scan_completed+0xb1/0x390 [mac80211] [ 718.84078] ieee80211_scan_work+0x7e/0x480 [mac80211] [ 718.84098] process_one_work+0x142/0x3d0 [ 718.84111] worker_thread+0x229/0x440 [ 718.84122] kthread+0xf5/0x130 [ 718.84132] ? process_one_work+0x3d0/0x3d0 [ 718.84140] ? kthread_associate_blkcg+0x90/0x90 [ 718.84152] ret_from_fork+0x35/0x40 Fix: scan work function keeps running even after cancel_hw_scan() call. Issue is resolved by calling cancel_work_sync() in rsi_mac80211_stop(). Regression Petential: Ran Step 3 in 30-times. Didn't see any kernel panic. This bug is for tracking purposes only, please don't triage. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777850/+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