bisecting fixing commit since cf256fbcbe347b7d0ff58fe2dfa382a156bd3694
building syzkaller on c0ced5570c6505a80235b64884c93e89733b77f3
testing commit cf256fbcbe347b7d0ff58fe2dfa382a156bd3694
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 15084f71af48e8a33af42ac83eeaf454d1e1c512bc196527b2bf53cec8a3365d
run #0: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #1: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #2: crashed: BUG: soft lockup in hci_sock_release
run #3: crashed: BUG: soft lockup in hci_sock_release
run #4: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #5: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #6: crashed: BUG: soft lockup in socket
run #7: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #8: crashed: BUG: soft lockup in hci_sock_release
run #9: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #10: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #11: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #12: crashed: BUG: soft lockup in hci_sock_release
run #13: crashed: BUG: soft lockup in hci_sock_release
run #14: crashed: BUG: soft lockup in hci_sock_release
run #15: crashed: BUG: soft lockup in mgmt_set_connectable_complete
run #16: crashed: BUG: soft lockup in hci_sock_release
run #17: crashed: BUG: soft lockup in hci_sock_release
run #18: crashed: BUG: soft lockup in hci_sock_release
run #19: crashed: BUG: soft lockup in mgmt_set_connectable_complete
testing current HEAD af48f51cb5934738a3ee97e951d7dededf029488
testing commit af48f51cb5934738a3ee97e951d7dededf029488
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e11105a2c3e5bb9276b2c224467ec5d70a5c9d59f28015f0af46bcf3b7c2ad77
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m45.680384174s (build: 16m28.717523442s, test: 7m51.44209476s)
the crash still happens on HEAD
commit msg: Linux 4.14.271
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout