bisecting fixing commit since b86ee2b7ae42b6b37a918b66236608e2cc325f59
building syzkaller on a7dab6385c1d95547a88e22577fb56fbcd5c37eb
testing commit b86ee2b7ae42b6b37a918b66236608e2cc325f59
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e049ebb9aa72c3fe57f167737d2c12efe8e6cdafec597a2e8a4191536011d13b
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 15a1c6b6f5162f7b70cf9a77cd8ed9771c1f0b53
testing commit 15a1c6b6f5162f7b70cf9a77cd8ed9771c1f0b53
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c20757dbc5b7d83e3a990ea39a6528ebe16d0c4a30ae3d7b864aa84b2e43f6c2
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 20m38.749510225s (build: 14m39.405022246s, test: 5m30.38368723s)
the crash still happens on HEAD
commit msg: Linux 4.14.276
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout