bisecting fixing commit since b86ee2b7ae42b6b37a918b66236608e2cc325f59
building syzkaller on a7dab6385c1d95547a88e22577fb56fbcd5c37eb
testing commit b86ee2b7ae42b6b37a918b66236608e2cc325f59
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1727abfd4cdc8b19937e8dd9a5b6cdc64348bc355256a9104d7127283599aee3
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD e3a56aaade89bc89f33baec11b12538fc22536e2
testing commit e3a56aaade89bc89f33baec11b12538fc22536e2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e3fa6604432281a918bc6bd79073961a9df3bc61fbf0762ef34b163f053fa5f5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m32.433784504s (build: 16m23.682864207s, test: 6m21.213222999s)
the crash still happens on HEAD
commit msg: Linux 4.14.277
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