bisecting fixing commit since b98aebd298246df37b472c52a2ee1023256d02e3
building syzkaller on 5ea87a6638e52a94361b26b8576a1605585815fb
testing commit b98aebd298246df37b472c52a2ee1023256d02e3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 593e10e0c419543441de0473767dbd75683bd14b8d90120b630731ab7882ddae
all runs: crashed: general protection fault in kernfs_kill_sb
testing current HEAD 21ad423fe5210f5aa50bd43f9ae99b655090a227
testing commit 21ad423fe5210f5aa50bd43f9ae99b655090a227
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a2792ca07f5d32635a25a5a907dcc538b5963b9293f36881ac104bf07cf1e7a2
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m59.635343626s (build: 16m43.277374784s, test: 6m21.016902387s)
the crash still happens on HEAD
commit msg: Linux 4.14.265
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1