bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 5ef9c29141f85f210b326ce68718498ae0c1fd35
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2981431a0a5ffd1e68ad89e6b076e9a4994990f6786a119269b6ffc74bc6b706
all runs: crashed: WARNING in __cfg80211_ibss_joined
testing current HEAD 8ea4f73cfa7e0555dc03aedde52db54a6587ab43
testing commit 8ea4f73cfa7e0555dc03aedde52db54a6587ab43
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 83d22ed33f4d200a7afa3f77969060f49a94cf2ec4eb8ab145b4c5dc55562156
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m53.152182512s (build: 18m15.817608719s, test: 12m12.520687424s)
the crash still happens on HEAD
commit msg: Linux 4.14.247
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout