bisecting fixing commit since af1af6ebca0e28a97e5f802b9da695678fcd226a
building syzkaller on 89bc860804252dbacb8c2bea60b9204859f4afd7
testing commit af1af6ebca0e28a97e5f802b9da695678fcd226a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 90081ccb718e14ac77ac69be3efd2be535078bf84c314fd7e19693aab406bdd3
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9b8f236b11cea137f5efee36f27ce08310929de1d412d3b6936a9adeeb8986d6
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m14.570338289s (build: 14m26.826400133s, test: 6m25.28787603s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
crash: unregister_netdevice: waiting for DEV to become free
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
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