bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 77e2b66864e69c17416614228723a1ebd3581ddc
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2e4e238a55ddf51dae61762e1711755972d52046eb75835c8aa2f296f3df47b4
all runs: crashed: WARNING: ODEBUG bug in __cancel_work
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c8bbfb1670decc42965bbb4ebcad22530cc32a9c71e2c8f20a5ae131d2f4debd
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m2.794709773s (build: 20m9.028154643s, test: 6m27.841593122s)
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