040000 tree 8bf3036b7c10a84557e9b7e18ecc5771ca2aa457	kprobes-event
040000 tree d1f55628abe66decf4a227ad9f8eb3a9194ff6c5	perf-regs
040000 tree 19a70b9057517a908e9bb24d21a1549266f7efe9	perf-stackdump