bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 77e2b66864e69c17416614228723a1ebd3581ddc
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b22728be8595579102e1cd65274f5cd61e482debcd7e5db212d2b19b4279dd15
all runs: crashed: possible deadlock in lock_trace
testing current HEAD f051383ef03bde49ca992f297ec80757a702e774
testing commit f051383ef03bde49ca992f297ec80757a702e774
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 0df297eff0020bbd53d70de01c4c637b06ddeaaca597aecde959f50b60cbb3c5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 19m56.365769897s (build: 12m45.736753843s, test: 6m51.179409472s)
the crash still happens on HEAD
commit msg: Linux 4.14.285
crash: unregister_netdevice: waiting for DEV to become free
IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
syz-executor.0 (7952) used greatest stack depth: 24568 bytes left
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout