bisecting fixing commit since 87335852c5d9ec629f80bb2257b9a9945962b719
building syzkaller on a0092f9dfdd33924abe5cf5565e4ec4748217c7b
testing commit 87335852c5d9ec629f80bb2257b9a9945962b719 with gcc (GCC) 8.4.1 20210217
kernel signature: 97b851526771270ce803881cb10c929e510d1d20a6e07e29e042e30777d787d0
run #0: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #1: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #2: crashed: WARNING in pm_qos_remove_request
run #3: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #4: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #5: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #6: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #7: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #8: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #9: crashed: WARNING in pm_qos_remove_request
run #10: crashed: WARNING in pm_qos_remove_request
run #11: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #12: crashed: WARNING in pm_qos_remove_request
run #13: crashed: WARNING in pm_qos_remove_request
run #14: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #15: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #16: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #17: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #18: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #19: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: 9a3acef81dd67c0d3d15965680b615ad5571a34bd084704a55222395c68f80ee
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m59.758257328s (build: 15m49.681495219s, test: 6m45.306719264s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout