panic full自动重启

panic(cpu 0 caller 0xfffffff00b4c93d8): userspace watchdog timeout: no successful checkins from com.apple.thermalmonitord since load\nservice returned not alive with context : is_alive_func returned unhealthy : current fe7fffffe, mask 7ffffff, expected 7ffffff\nservice: com.apple.backboardd

是哪里出现了问题？