bisecting fixing commit since 45f092f9e9cb31486db546e39bfe7cc0b3f57099
building syzkaller on 78ded1969a3882c1a5dc9cf32ed2ffc23119a4ca
testing commit 45f092f9e9cb31486db546e39bfe7cc0b3f57099
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 073e41d915aed5df20c9e1cf3b1b00d3e6465d426b027c5a0cc3dd2b773d3c21
all runs: crashed: general protection fault in sysfs_do_create_link_sd
testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6
testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f63fc399b4de24c0bbd0747941d093357555ae063f520f3f510e4f23daf654c8
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m24.779622786s (build: 19m40.50447551s, test: 7m3.172121259s)
the crash still happens on HEAD
commit msg: Linux 4.14.250
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1