bisecting fixing commit since 6b6446efedb27c2766745a04f9b5d4449f51391d
building syzkaller on cba33199be220cbf61f7c0c8223d88a25a913d6f
testing commit 6b6446efedb27c2766745a04f9b5d4449f51391d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 87bff782e714e890b08df0fd4131fe583db9248aeafce880b2548e51b2e3cbf4
all runs: crashed: WARNING in ieee80211_start_next_roc
testing current HEAD 74766a973637a02c32c04c1c6496e114e4855239
testing commit 74766a973637a02c32c04c1c6496e114e4855239
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b31a7162adfce155f3d7c447dca88f3be953c0f4399083b0adf7d1a06d7a5afd
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m7.15193487s (build: 14m32.862532486s, test: 6m10.146402082s)
the crash still happens on HEAD
commit msg: Linux 4.14.275
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout