Serial debugging of Windbg does not work through virtual serial port

Question

I have the following configuration:

Operating System: Windows 7 SP1 Guest OS: Windows XP SP3 Pro

guest OS runs on VMWare version 7 workstation

I configured a virtual serial port on a virtual machine like "output named pipe" and the following name:

\\.\pipe\whatever 

I also added the appropriate parameters to the boot.ini file on the Win XP SP3 Pro image to enable debugging (/ debugport = com1 baudrate = 115200)

in windbg, I am setting up the Kernel Debugging option, going to:

File-> Kernel Debugging

and selecting the COM tab and configure as follows:

Providing a port name as:

 \\.\pipe\whatever 

and checking the Pipe window.

I load the Windows XP SP3 virtual machine and select the second entry in which debugging mode is enabled. Right after that, I click Ok inside Windbg to start a kernel debugging session.

But even then, it remains stuck in the following message:

Open \. \ Pipe \ whatever Waiting for reconnection ...

It says: "Debuggee not connected" and remains in this message even after Virtual Machine is fully loaded. The virtual serial port status in VmWare is also displayed as Connected.

I checked the network connections.

The virtual machine has a network adapter in bridge mode, and I can successfully perform a successful check of the guest OS and host system.

Answer 1

Probably your problem is that WinDbg does not break the connection, so it is connected, but it does not talk about it, and you think that it does not work.

I was lucky with WinDbg on the command line with -b, although I noticed that this option could be removed in subsequent builds. I tested 6.12.0002.633 x86.

  windbg -b -k com:pipe,port=\\.\pipe\com_1 

(From here .)

Answer 2

I had the same problem, and after changing the port on your Windows guest (in vmware) you should be connected. In my case, the port in boot.ini was com1 , and I changed it to com2 .

Answer 3

Have you also included / debug in boot.ini?

Answer 4

This may be your VMWare serial port configuration. The configuration should be:

Use named pipe: \. \ Pipe \ whatever This target is the server. The other end is the application.

It is necessary to check the processor efficiency during the survey.

More details here: http://www.vmware.com/support/ws5/doc/ws_devices_serial_advanced_example_debugging.html