bisecting fixing commit since b86ee2b7ae42b6b37a918b66236608e2cc325f59
building syzkaller on a7dab6385c1d95547a88e22577fb56fbcd5c37eb
testing commit b86ee2b7ae42b6b37a918b66236608e2cc325f59
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 47b16dfad42693da2e55f98497577d953ae007060196a1e91e34fc631b7ef09f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 690285a9380d183e6d286d90e458fa7c3f97eca2
testing commit 690285a9380d183e6d286d90e458fa7c3f97eca2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ca6e24ea5b0217b94cff5df9cbf5ad54139d3f84ffb550dfdf05390085ee50da
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m31.660793433s (build: 17m45.166241162s, test: 6m20.253446742s)
the crash still happens on HEAD
commit msg: Linux 4.14.279
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