bisecting fixing commit since 5b7a52cd2eef952cee8a72512ef370bcdef46636
building syzkaller on 94942294277bf7550b12322d282159551521258b
testing commit 5b7a52cd2eef952cee8a72512ef370bcdef46636
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 74bc6d57f67b68b9261705d21fd32595462300bd97b902b39f29acdaf9db6d27
all runs: crashed: INFO: task hung in rtnl_lock
testing current HEAD f051383ef03bde49ca992f297ec80757a702e774
testing commit f051383ef03bde49ca992f297ec80757a702e774
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2c4468a103df930944b426e033fffbc0272f414613b7b76b7df79d9e086d48e1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m36.21613968s (build: 12m9.467191417s, test: 10m5.995566066s)
the crash still happens on HEAD
commit msg: Linux 4.14.285
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