bisecting fixing commit since 21ad423fe5210f5aa50bd43f9ae99b655090a227
building syzkaller on 0b33604d8e2793b82ec89abecf82d92b82e3d410
testing commit 21ad423fe5210f5aa50bd43f9ae99b655090a227
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f9e2680e24fa67f30ff761a577d494e7c6995034749926d30a7cb7d9e27f2332
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD af48f51cb5934738a3ee97e951d7dededf029488
testing commit af48f51cb5934738a3ee97e951d7dededf029488
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6e775d66198350e24ad33cd8b751eb2414096c731df5715fb0018fdd12f740fe
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m44.151424636s (build: 15m54.070008024s, test: 6m29.096106092s)
the crash still happens on HEAD
commit msg: Linux 4.14.271
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
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1