bisecting fixing commit since 45f092f9e9cb31486db546e39bfe7cc0b3f57099
building syzkaller on 78ded1969a3882c1a5dc9cf32ed2ffc23119a4ca
testing commit 45f092f9e9cb31486db546e39bfe7cc0b3f57099
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c07f8bc616ad8378d24849a28148672cb2907e987de941f4c466adf6ae6a7cec
all runs: crashed: general protection fault in sysfs_do_create_link_sd
testing current HEAD c01d4d1b885d96a7c8c27d629abeb918ca897dbe
testing commit c01d4d1b885d96a7c8c27d629abeb918ca897dbe
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 09d3ac034a0f0222ab6c6c21647eabec86d6184238d0faec9f18ab05e15a193c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m32.537694353s (build: 19m34.135026774s, test: 7m14.757455003s)
the crash still happens on HEAD
commit msg: Linux 4.14.257
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1