bisecting fixing commit since 1752938529c614a8ed4432ecce6ebc95d3b87207
building syzkaller on fff20c29726829fd29b51617f8e155d2b19bc868
testing commit 1752938529c614a8ed4432ecce6ebc95d3b87207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 0aa72b61ba8a2728f4cfb36942133ed147bb1822ec453b1cd2f83797f070b0f8
run #0: crashed: inconsistent lock state in sco_conn_del
run #1: crashed: inconsistent lock state in sco_sock_timeout
run #2: crashed: inconsistent lock state in sco_sock_timeout
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_conn_del
run #6: crashed: inconsistent lock state in sco_conn_del
run #7: crashed: inconsistent lock state in sco_sock_timeout
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_sock_timeout
run #14: crashed: inconsistent lock state in sco_conn_del
run #15: crashed: inconsistent lock state in sco_conn_del
run #16: crashed: inconsistent lock state in sco_conn_del
run #17: crashed: inconsistent lock state in sco_conn_del
run #18: OK
run #19: OK
testing current HEAD 1048779a1d7dcf0b5c150188decafa21c19821e4
testing commit 1048779a1d7dcf0b5c150188decafa21c19821e4
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5b34f0320b32d8f2458a427527afd7afb6d19266567eb9c7b41fd1b7e4a235a3
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m2.787670022s (build: 13m53.741104841s, test: 12m21.932732691s)
the crash still happens on HEAD
commit msg: Linux 4.14.287
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout