Kernel Debugging Guide

After the installation completes, and after you complete the other required tasks, such as preparing
your cable and setting up the target machine, you can launch the Windows Debugger (WinDbg)
by selecting Start > All Programs > Debugging Tools for Windows > WinDbg.
Building a converter for your cable
Some HP Integrity servers do not have a DB9 serial port. To connect the host to these servers,
you must build or buy a converter plug to use to connect a cable to the debug port on the server.
The following sections provide pin-out details for the debug ports on each server, so you can
make the converter you need.
Build a 5x2-to-DB9M converter (rx1620)
On the rx1620 system board, the kernel debug port 5x2 male pins are wired as follows:
Figure 1-1 rx1620 debug port (male pins on system board)
You can sometimes find a 5x2-to-DB9M converter in electronics surplus stores because it was
often used on the motherboards of older computers. If you cannot locate one, you can build the
connector yourself using the information in the following table.
Table 1-2 DB9 male pin-out to 5x2 female
5x2 Female ConnectorSignal DescriptionDB9 Male Pin
1CD (carrier detect)1
2RX (receive data)2
3TX (transmit data)3
4DTR (data terminal ready)4
5GND (ground)5
6DSR (data set ready)6
7RTS (request to send)7
8CTS (clear to send)8
9RI (ring indicator)9
10——
Build a RJ45-to-DB9F converter (rx5670, rx7620, rx8620, and Superdome/sx1000)
The following picture shows the orientation of the individual wires inside the required plug
ends (RJ45 and DB9 Female).
14 Debugging the kernel locally