bisecting fixing commit since a35d65bedfbc38cffe2701798cd6810bbdf07892
building syzkaller on 3cd800e43d452c348a66ba475143831d94969a24
testing commit a35d65bedfbc38cffe2701798cd6810bbdf07892
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 53eecbba66547217f31a09ff1d2cb3a268d833a532cbd75240a961d11e5708e2
run #0: crashed: unregister_netdevice: waiting for DEV to become free
run #1: basic kernel testing failed: timed out
run #2: crashed: unregister_netdevice: waiting for DEV to become free
run #3: crashed: unregister_netdevice: waiting for DEV to become free
run #4: crashed: unregister_netdevice: waiting for DEV to become free
run #5: crashed: unregister_netdevice: waiting for DEV to become free
run #6: crashed: unregister_netdevice: waiting for DEV to become free
run #7: crashed: unregister_netdevice: waiting for DEV to become free
run #8: crashed: unregister_netdevice: waiting for DEV to become free
run #9: crashed: unregister_netdevice: waiting for DEV to become free
run #10: crashed: unregister_netdevice: waiting for DEV to become free
run #11: crashed: unregister_netdevice: waiting for DEV to become free
run #12: crashed: unregister_netdevice: waiting for DEV to become free
run #13: crashed: unregister_netdevice: waiting for DEV to become free
run #14: crashed: unregister_netdevice: waiting for DEV to become free
run #15: crashed: unregister_netdevice: waiting for DEV to become free
run #16: crashed: unregister_netdevice: waiting for DEV to become free
run #17: crashed: unregister_netdevice: waiting for DEV to become free
run #18: crashed: unregister_netdevice: waiting for DEV to become free
run #19: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: daaf4c114c5933ce27337d1ab57245f7623872a39535e43bfa3e67c2c30c3044
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 20m53.813498346s (build: 14m34.416913175s, test: 5m56.329050946s)
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