bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 70c104a18f3d409bc6dde950b50258d3d280d99b
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1e419afaead42b2ae804495212f220a59a99eec4486616b09aeba7202cb86e2e
all runs: crashed: general protection fault in vxlan_fdb_destroy
testing current HEAD eb045674aab31aa55a4f9aec27cce36e3d946a21
testing commit eb045674aab31aa55a4f9aec27cce36e3d946a21
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9db9f00433bb0cb8c131472fdca5c3fe0740a596160e21cfb945878ca4e58dc4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m18.137892697s (build: 23m2.072204185s, test: 6m16.663723177s)
the crash still happens on HEAD
commit msg: Linux 4.14.272
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1