bisecting fixing commit since 21ad423fe5210f5aa50bd43f9ae99b655090a227
building syzkaller on 0b33604d8e2793b82ec89abecf82d92b82e3d410
testing commit 21ad423fe5210f5aa50bd43f9ae99b655090a227
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 31ee7850f558559badc97bc72cfc0023249ef127e34ac568de206a204a4873d5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 569d1abf9402e943bf00821a6e0b8e13bffde699
testing commit 569d1abf9402e943bf00821a6e0b8e13bffde699
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d76f8c2203ca1162d02a9b96e0e84733d4744308b197b0c9a8127b671ba371f1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m49.62830223s (build: 19m43.126805286s, test: 6m26.74605037s)
the crash still happens on HEAD
commit msg: Linux 4.14.278
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