bisecting fixing commit since 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796
building syzkaller on 251aabb77ec4d86b9374b6f999fbb8e1ea70963f
testing commit 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6a8a8d7d06df5e6e45a753582754fc24e67a47ac45288dc2a6b39eabc194887c
all runs: crashed: possible deadlock in rtnl_lock
testing current HEAD f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
testing commit f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b034248fd349ff09675457922aa66145066343294da0f24b51d07373465f4a14
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m57.063463686s (build: 20m28.770204354s, test: 7m21.230598212s)
the crash still happens on HEAD
commit msg: Linux 4.14.248
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1