bisecting fixing commit since c10b57a567e4333b9fdf60b5ec36de9859263ca2
building syzkaller on 365fba2440cee3aed74c774867a1f43e3e2f7aac
testing commit c10b57a567e4333b9fdf60b5ec36de9859263ca2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 01a7f59756f23492d74a5b135b690fc06cc5ef040e38c7c4c4041fa0810cd63b
all runs: crashed: possible deadlock in perf_event_read_value
testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6
testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a3f1d3512a831d72d92bc9cc4631273fb9f7edb56b5d2f71e8a4fbe60481181d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m24.413736894s (build: 20m10.813625291s, test: 6m43.249682166s)
the crash still happens on HEAD
commit msg: Linux 4.14.250
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1