bisecting fixing commit since 8034e99d1a010a795b979582c0b2370584d8abf4
building syzkaller on 8b9ca619df135211a89cc19719f2705d0016045d
testing commit 8034e99d1a010a795b979582c0b2370584d8abf4
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9b057351f6c44391fea4b13a557311d01ef69248bcd3d156357b37d4f30a1e98
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 1ccc597f801cbecffcaed7f2d1f620ec48f6f8df
testing commit 1ccc597f801cbecffcaed7f2d1f620ec48f6f8df
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 76cb00b94b1171400b6cb71bcc2ba161450795bd08527da4fc4a520f38dbd039
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m51.044835433s (build: 14m53.02555591s, test: 6m34.676086694s)
the crash still happens on HEAD
commit msg: Linux 4.14.283
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