bisecting fixing commit since cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
building syzkaller on 9d2ab5dfe7727dfea4b9b279f4edf731acb386ef
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8406b8a9b54468b51bbac9e94259da94909d298b6bac450c75b22e8bd7d7db8d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 162b95d01320370b80cb2d5724cea4ae538ac740
testing commit 162b95d01320370b80cb2d5724cea4ae538ac740
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6cdde993a97a50dbc76ce616e06ac81f4ec0281e07afaccd58439f3121351411
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m7.503510187s (build: 15m32.082628713s, test: 6m13.937324266s)
the crash still happens on HEAD
commit msg: Linux 4.14.244
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout