bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 8bdd5343e64460868dd1318257a39f1e7fd89471
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f8b1c911d1d0dbec0f1d0bb3bc558a2f31b325ad69b745e85a24b9cb27c85ed9
all runs: crashed: possible deadlock in rtnl_lock
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 25eb6ae66c4776f08d85def6c1381b4cae324aba3d917e0b114c156cf4fad5ed
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m30.333549636s (build: 16m45.857024222s, test: 6m18.642264665s)
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
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