bisecting fixing commit since cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
building syzkaller on aba2b2fb3544d9e42991237c13d8cada421deda5
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2f4299e2363d9bf954243839737b2a2181a6d87f962d882a8363dff7f3ae8a2f
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: 94bc6d695583f25337d63bbe2dd11fd93ea2924aa286f0d12999c21e7095a257
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m29.979848021s (build: 18m34.252247522s, test: 6m29.488884044s)
the crash still happens on HEAD
commit msg: Linux 4.14.244
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout