bisecting fixing commit since 45f092f9e9cb31486db546e39bfe7cc0b3f57099
building syzkaller on 78ded1969a3882c1a5dc9cf32ed2ffc23119a4ca
testing commit 45f092f9e9cb31486db546e39bfe7cc0b3f57099 with gcc (GCC) 8.4.1 20210217
kernel signature: 073e41d915aed5df20c9e1cf3b1b00d3e6465d426b027c5a0cc3dd2b773d3c21
all runs: crashed: general protection fault in sysfs_do_create_link_sd
testing current HEAD 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: 3743c58e919081d082fd6e6b84f2f40ad94786039d903358fc871c97c3887c7f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m31.135171761s (build: 15m5.127371962s, test: 6m45.127496266s)
the crash still happens on HEAD
commit msg: Linux 4.14.239
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1