bisecting fixing commit since 87335852c5d9ec629f80bb2257b9a9945962b719
building syzkaller on a0092f9dfdd33924abe5cf5565e4ec4748217c7b
testing commit 87335852c5d9ec629f80bb2257b9a9945962b719
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ac8615365943a0bb92b6ff1b11fa02a8026fc68adf861ff60810fd319908a73d
run #0: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #1: crashed: WARNING in pm_qos_remove_request
run #2: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
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: WARNING in pm_qos_remove_request
run #6: crashed: WARNING in pm_qos_remove_request
run #7: crashed: WARNING in pm_qos_remove_request
run #8: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #9: crashed: WARNING in pm_qos_remove_request
run #10: crashed: WARNING in pm_qos_remove_request
run #11: crashed: WARNING in pm_qos_remove_request
run #12: crashed: WARNING in pm_qos_remove_request
run #13: crashed: WARNING in pm_qos_remove_request
run #14: crashed: WARNING in pm_qos_remove_request
run #15: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
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: BUG: unable to handle kernel paging request in pm_qos_update_target
run #19: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
testing current HEAD 66722c42ec916e92cadda46316f8f6e3fdcaedc6
testing commit 66722c42ec916e92cadda46316f8f6e3fdcaedc6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e0504b7770562bb275d503aecbd5dd89e9c7df228631e0afafa22480008d10a4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m24.757283162s (build: 14m58.364847194s, test: 6m53.583342544s)
the crash still happens on HEAD
commit msg: Linux 4.14.256
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout