bisecting fixing commit since 74766a973637a02c32c04c1c6496e114e4855239
building syzkaller on 53c67432e69b0df4ff64448b944cbffaecec20f4
testing commit 74766a973637a02c32c04c1c6496e114e4855239
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8ef2a1fc9ca944af20287f71715dfe234825fb5aa961a7f71da86584baf75a20
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 88ac64b13dffcf8c351166611f332b90af8983d99fe40bc97656803d4df0f479
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m5.022792384s (build: 17m53.269011112s, test: 6m50.687349995s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
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