bisecting fixing commit since 2b79150141611d3c6e1b55d4e70f49602482f0b8
building syzkaller on cba33199be220cbf61f7c0c8223d88a25a913d6f
testing commit 2b79150141611d3c6e1b55d4e70f49602482f0b8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e93002d6fa2dc179dc278797d91ebf806d6f50e4349268f738a8a98971e5bb94
run #0: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/tmp/syz-executor1856557935" "root@10.128.0.255:./syz-executor1856557935"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.0.255 port 22 timed out
lost connection

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_sock_timeout
run #4: crashed: inconsistent lock state in sco_conn_del
run #5: crashed: inconsistent lock state in sco_conn_del
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
reproducer seems to be flaky
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 156729f77ac7f29c76cd71d5f7c0cd09d9fa9f56f5f1c9831735c758d0ec7802
all runs: crashed: unregister_netdevice: waiting for DEV to become free
Reproducer flagged being flaky
revisions tested: 2, total time: 30m59.848636993s (build: 15m3.792270015s, test: 15m14.413591225s)
the crash still happens on HEAD
commit msg: Linux 4.14.280
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout