bisecting fixing commit since cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
building syzkaller on 9d2ab5dfe7727dfea4b9b279f4edf731acb386ef
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 89153eaca32a2146d61b82ca2b4646438681e01b0ca24efef1c58b63bf3cfc19
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 94cb1fed447ac8d328a8b50f9583df4ce70793e2
testing commit 94cb1fed447ac8d328a8b50f9583df4ce70793e2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: dc58494ee589b3923257806119e63e61ed65996a7807538ff3c4093dc40a6bd0
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m45.432674897s (build: 18m43.89408404s, test: 6m22.30581377s)
the crash still happens on HEAD
commit msg: Linux 4.14.242
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout