bisecting fixing commit since 46914f96189be290174e378c6bf9ccadfdb9ca1e
building syzkaller on 6972b10616d785401dea17cec890cca8916424a7
testing commit 46914f96189be290174e378c6bf9ccadfdb9ca1e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b5580ee14b07d894d122519687e87023abe777f5ce29bcbd7dae657b4ce969aa
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 1048779a1d7dcf0b5c150188decafa21c19821e4
testing commit 1048779a1d7dcf0b5c150188decafa21c19821e4
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d47c09323fc696bc3ef2d88b33d15724ee3bdc59b5aeb5dcfaf97570531b5087
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m23.178932119s (build: 16m42.47240892s, test: 6m11.879758733s)
the crash still happens on HEAD
commit msg: Linux 4.14.287
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