# TaskStackInfo (UORB message) stack information for a single running process [source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/TaskStackInfo.msg) ```c # stack information for a single running process uint64 timestamp # time since system start (microseconds) uint16 stack_free char[24] task_name uint8 ORB_QUEUE_LENGTH = 2 ```