bisecting fixing commit since b98aebd298246df37b472c52a2ee1023256d02e3
building syzkaller on 5ea87a6638e52a94361b26b8576a1605585815fb
testing commit b98aebd298246df37b472c52a2ee1023256d02e3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 29f5353da87e7149a448ce480b7e6aee20d46f319a59eea033ad479212761f4e
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_event_release_kernel
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_event_release_kernel
run #9: crashed: possible deadlock in perf_read
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_read
run #13: crashed: possible deadlock in perf_event_release_kernel
run #14: crashed: possible deadlock in perf_event_release_kernel
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_event_release_kernel
run #18: crashed: possible deadlock in perf_event_release_kernel
run #19: crashed: possible deadlock in perf_read
testing current HEAD f96eb53cbd76415edfba99c2cfa88567a885a428
testing commit f96eb53cbd76415edfba99c2cfa88567a885a428
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 54e241ecbb65355e73911681a01a753659a5ed738f4b132fa77b6015e444d014
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m52.608642087s (build: 18m1.181525705s, test: 6m25.521320943s)
the crash still happens on HEAD
commit msg: Linux 4.14.246
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