bisecting fixing commit since 050272a0423e68207fd2367831ae610680129062
building syzkaller on e3ecea2e7fc6b80cc715c596105f4cf890e7e2e6
testing commit 050272a0423e68207fd2367831ae610680129062
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5b5ca608530b5efa3c2540d91c0f1ae870cc60bab5150cce9cb470fe7bf8a0fe
all runs: crashed: possible deadlock in rtnl_lock
testing current HEAD 35c4ba160ab6133e548468bd0bd1109990dc7736
testing commit 35c4ba160ab6133e548468bd0bd1109990dc7736
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9fc8556df48aa3d22e3be058db512811d637056d6cf3a946f55d24b02309599a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m36.409059308s (build: 19m41.587305554s, test: 6m21.85822954s)
the crash still happens on HEAD
commit msg: Linux 4.14.245
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1