bisecting fixing commit since c10b57a567e4333b9fdf60b5ec36de9859263ca2
building syzkaller on 365fba2440cee3aed74c774867a1f43e3e2f7aac
testing commit c10b57a567e4333b9fdf60b5ec36de9859263ca2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6cf8bed87b23062f482980e06530a0e24e7058cac8d9393002569252b24354c4
all runs: crashed: possible deadlock in perf_event_read_value
testing current HEAD 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
testing commit 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7f3cad31d3e7a83e24bc7d81b66a9f248b0a090fab425350213d349b6d134249
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m23.830453112s (build: 18m45.517061525s, test: 6m49.707989173s)
the crash still happens on HEAD
commit msg: Linux 4.14.281
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
random: crng init done
random: 7 urandom warning(s) missed due to ratelimiting