bisecting fixing commit since 8034e99d1a010a795b979582c0b2370584d8abf4
building syzkaller on 8b9ca619df135211a89cc19719f2705d0016045d
testing commit 8034e99d1a010a795b979582c0b2370584d8abf4
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: db87bbf1462992c7afee06f9b15e75888f6b623b10d8c2951aac7acd3c23f9f0
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: cb067fb365f81bfacf497e13ffb0f6d0aaf513f6db45f89cf15b1bc50b4a8977
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m36.645243228s (build: 19m45.790585989s, test: 6m24.29678246s)
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