Find a dead loop in a running program under Linux

After the morning to the company found that the server CPU utilization rate has reached the absolute. Guessing is triggering the problem code into the dead loop.

Check the situation with the PS command. Find the culprit is a game server program. CPU usage is very high.

Use the Top-h-P PID to see exactly where the problem occurred on that thread, recording the ThreadID.

Use GdB ProcessName PID near to the target process.

Use the info threads to list the outgoing thread status.

Use thread Num. To view problem thread information

The problem code location is found successfully with the BT view stack call.

Finally remember gdb dettach separation.

Find a dead loop in a running program under Linux