bisecting fixing commit since e3a56aaade89bc89f33baec11b12538fc22536e2
building syzkaller on e9076525f882cc932139b6e813c39f3f0043c3f5
testing commit e3a56aaade89bc89f33baec11b12538fc22536e2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f5d62c7916ad7ef3444db2557771239d75eba5f3aacea26d94cfb62cb757fc21
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD f051383ef03bde49ca992f297ec80757a702e774
testing commit f051383ef03bde49ca992f297ec80757a702e774
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 587ede417b12278596e653973c9a18d778cef693488116f5171d6f33cd09020c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 18m25.756933783s (build: 11m48.479740064s, test: 6m11.538916395s)
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