bisecting fixing commit since b98aebd298246df37b472c52a2ee1023256d02e3
building syzkaller on 5ea87a6638e52a94361b26b8576a1605585815fb
testing commit b98aebd298246df37b472c52a2ee1023256d02e3 with gcc (GCC) 8.4.1 20210217
kernel signature: 15aaf30dccc54d4f653f8e2b9f5995036b483947c079463ff1b099329b681fbf
run #0: crashed: possible deadlock in perf_event_release_kernel
run #1: crashed: possible deadlock in perf_event_release_kernel
run #2: crashed: possible deadlock in perf_event_release_kernel
run #3: crashed: possible deadlock in perf_event_release_kernel
run #4: crashed: possible deadlock in perf_event_release_kernel
run #5: crashed: possible deadlock in perf_read
run #6: crashed: possible deadlock in perf_event_release_kernel
run #7: crashed: possible deadlock in perf_event_release_kernel
run #8: crashed: possible deadlock in perf_read
run #9: crashed: possible deadlock in perf_event_release_kernel
run #10: crashed: possible deadlock in perf_event_release_kernel
run #11: crashed: possible deadlock in perf_event_release_kernel
run #12: crashed: possible deadlock in perf_event_release_kernel
run #13: crashed: possible deadlock in perf_event_release_kernel
run #14: crashed: possible deadlock in perf_read
run #15: crashed: possible deadlock in perf_event_release_kernel
run #16: crashed: possible deadlock in perf_event_release_kernel
run #17: crashed: possible deadlock in perf_read
run #18: crashed: possible deadlock in perf_event_release_kernel
run #19: crashed: possible deadlock in perf_event_release_kernel
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: dad56e802f0a0b086f682e522aef5136e89bd7f7b1b7c788e3e2f82251eb50dd
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m53.183529581s (build: 14m56.26218558s, test: 6m3.98722607s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
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