bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 70c104a18f3d409bc6dde950b50258d3d280d99b
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 81e6dcac90f78ad9773aa78ba7537d3e88294a333d5cd10dd5ffe8f9674fa177
all runs: crashed: general protection fault in vxlan_fdb_destroy
testing current HEAD 964f3712e6a7447d9d3203f2be3f6c50e78ea179
testing commit 964f3712e6a7447d9d3203f2be3f6c50e78ea179
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e905282f5f1e881237f9099281d2d4115d13dfdfef35569e8e04a27e0ff724d4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 29m14.185280472s (build: 21m55.67109515s, test: 6m36.181501435s)
the crash still happens on HEAD
commit msg: Linux 4.14.240
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1