bisecting fixing commit since 46914f96189be290174e378c6bf9ccadfdb9ca1e
building syzkaller on 2489ab887a86e8b1b253aef742e365a606db3a4f
testing commit 46914f96189be290174e378c6bf9ccadfdb9ca1e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9f899de45fb3e7c72546b50e79b26df24e3f48f3c60ce800d2eb6bd110754646
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: c81f6d647a2ab7a85190842ba8c914c2c59d8ea3a1916755d2b6f2d68ca40474
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m48.304088694s (build: 15m1.147348164s, test: 6m22.792092574s)
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