bisecting fixing commit since 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
building syzkaller on 1bf9a662c66aa432ff2fe3bf2562578cef626c09
testing commit 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6868940f3a62b2b65e52e7e33acdcdcd2d37edf57255b24fe6bfff45992f29af
all runs: crashed: WARNING in bpf
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 403f48046bd92e4bc2ed9f36c9c7b525b9cb5993314d04b9bc859b181825ca93
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m18.641755381s (build: 15m33.748142737s, test: 6m19.062785731s)
the crash still happens on HEAD
commit msg: Linux 4.14.280
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