** Summary changed: - Redpine: Observed kernel panic while when running wireless tests in regression mode + Redpine: Observed kernel panic while running wireless tests in regression mode
-- 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/1773410 Title: Redpine: Observed kernel panic while running wireless tests in regression mode Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Confirmed Bug description: SRU Justification ----------------- Impact: Kernel freezes/panic when running wireless tests in regression Test case: 1. Keep a wrong access-point name in sta.conf file and run the nmcli. 2. There will be continuous scan will be happen and do remove the module using rmmod.sh script. 3. When soft scan is happening in redpine driver, before connection. Some times, we have observed a kernel panic. like below [ 1171.913244] BUG: unable to handle page request at 00000000001067e38 [ 1171.913248] IP: cfg80211_scan_done+0xb0/0xc0 [cfg80211] [ 1171.913971] __ieee80211_scan_completed+0xb1/0x390 [mac80211] [ 1171.914078] ieee80211_scan_work+0x7e/0x480 [mac80211] [ 1171.914098] process_one_work+0x142/0x3d0 [ 1171.914111] worker_thread+0x229/0x440 [ 1171.914122] kthread+0xf5/0x130 [ 1171.914132] ? process_one_work+0x3d0/0x3d0 [ 1171.914140] ? kthread_associate_blkcg+0x90/0x90 [ 1171.914152] 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(). Regression potential: Ran driver_crash.sh for 100 times and didn't see the issue. 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/1773410/+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
