bisecting fixing commit since b8f3be299d5176348b15cc59d55b85faa3dece68
building syzkaller on 0d5abf15b74358009a02efb629f7bc7c84841a1f
testing commit b8f3be299d5176348b15cc59d55b85faa3dece68
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3b473aa8d7727ec52bbbd7ac3735772361cb590c0758789b2079dc93e9221ffe
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: d3ada26f0043874e32090b03a42e2cecfa6741f85090fd1f859311c1db25e07d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 19m27.964037866s (build: 12m48.862951913s, test: 6m18.273966559s)
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