bisecting fixing commit since c10b57a567e4333b9fdf60b5ec36de9859263ca2
building syzkaller on 365fba2440cee3aed74c774867a1f43e3e2f7aac
testing commit c10b57a567e4333b9fdf60b5ec36de9859263ca2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 622387323cd9feb433d6b17206af14c95e1a8ae94e8a0761353eee898541c133
all runs: crashed: possible deadlock in perf_event_read_value
testing current HEAD 8034e99d1a010a795b979582c0b2370584d8abf4
testing commit 8034e99d1a010a795b979582c0b2370584d8abf4
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 83e72903158ef033168c5f12dcc0ace0c72115c067552361ca809f3daf71be8a
run #0: crashed: unregister_netdevice: waiting for DEV to become free
run #1: crashed: unregister_netdevice: waiting for DEV to become free
run #2: crashed: unregister_netdevice: waiting for DEV to become free
run #3: crashed: unregister_netdevice: waiting for DEV to become free
run #4: crashed: unregister_netdevice: waiting for DEV to become free
run #5: crashed: unregister_netdevice: waiting for DEV to become free
run #6: crashed: unregister_netdevice: waiting for DEV to become free
run #7: crashed: unregister_netdevice: waiting for DEV to become free
run #8: boot failed: can't ssh into the instance
run #9: boot failed: can't ssh into the instance
revisions tested: 2, total time: 39m10.076407996s (build: 24m17.231422412s, test: 14m6.827124094s)
the crash still happens on HEAD
commit msg: Linux 4.14.266
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