bisecting fixing commit since 1752938529c614a8ed4432ecce6ebc95d3b87207
building syzkaller on fff20c29726829fd29b51617f8e155d2b19bc868
testing commit 1752938529c614a8ed4432ecce6ebc95d3b87207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3e75b37708bf5fa7c088660f33dbc1093b5ad36375e4fb5442ee1afdaf491b8d
run #0: crashed: inconsistent lock state in sco_sock_timeout
run #1: crashed: inconsistent lock state in sco_conn_del
run #2: crashed: inconsistent lock state in sco_conn_del
run #3: crashed: inconsistent lock state in sco_conn_del
run #4: crashed: inconsistent lock state in sco_conn_del
run #5: crashed: inconsistent lock state in sco_sock_timeout
run #6: crashed: inconsistent lock state in sco_conn_del
run #7: crashed: inconsistent lock state in sco_conn_del
run #8: crashed: inconsistent lock state in sco_sock_timeout
run #9: crashed: inconsistent lock state in sco_sock_timeout
run #10: crashed: inconsistent lock state in sco_sock_timeout
run #11: crashed: inconsistent lock state in sco_conn_del
run #12: crashed: inconsistent lock state in sco_sock_timeout
run #13: crashed: inconsistent lock state in sco_conn_del
run #14: crashed: inconsistent lock state in sco_sock_timeout
run #15: crashed: inconsistent lock state in sco_sock_timeout
run #16: crashed: inconsistent lock state in sco_conn_del
run #17: crashed: inconsistent lock state in sco_conn_del
run #18: crashed: inconsistent lock state in sco_conn_del
run #19: OK
testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6
testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c6b720680584ef83b71cce3e5529718eaf9d96a1de8c5dff5ac6f8c87769407e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m45.776609603s (build: 16m20.518302766s, test: 11m42.690551152s)
the crash still happens on HEAD
commit msg: Linux 4.14.250
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout