bisecting fixing commit since cd529693461026636f76d0395a42cb2439bbd368
building syzkaller on 098b5d530648147c744a7c2eb8b78c1307f9d3ce
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 84d15b3de8712335bbd391d497961cfea70ff83450dc91ca06368c8bf88e1b95
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD bbb957e1bd4a337c0d10d599d284a7475bca47cb
testing commit bbb957e1bd4a337c0d10d599d284a7475bca47cb
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 55fa8eec110590646a8aff8899fae25b250297f7de6b0d63d21c533b28519f44
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m58.608676814s (build: 20m0.900919584s, test: 6m14.300871755s)
the crash still happens on HEAD
commit msg: Linux 4.14.263
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout