bisecting fixing commit since 87335852c5d9ec629f80bb2257b9a9945962b719
building syzkaller on a0092f9dfdd33924abe5cf5565e4ec4748217c7b
testing commit 87335852c5d9ec629f80bb2257b9a9945962b719
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d2e34ac7b01f52c93841cdf18612f27974142e471bb5e0de7fd25e08f5931514
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: WARNING in pm_qos_remove_request
run #3: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #4: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #5: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #6: crashed: WARNING in pm_qos_remove_request
run #7: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #8: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #9: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #10: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #11: crashed: WARNING in pm_qos_remove_request
run #12: crashed: WARNING in pm_qos_remove_request
run #13: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #14: crashed: WARNING in pm_qos_remove_request
run #15: crashed: WARNING in pm_qos_remove_request
run #16: crashed: INFO: trying to register non-static key in cancel_delayed_work_sync
run #17: crashed: WARNING in pm_qos_remove_request
run #18: crashed: WARNING in pm_qos_remove_request
run #19: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
testing current HEAD cd529693461026636f76d0395a42cb2439bbd368
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 462bf12599b0e67d63f9e4d519a4fb6519ac97cc40f1a109be216ee7ac585ea5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m15.221312931s (build: 14m56.654912298s, test: 7m52.52314338s)
the crash still happens on HEAD
commit msg: Linux 4.14.253
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci0 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 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout