How do I connect WinDbg to a laptop target?

How do I connect WinDbg to a laptop target?
It doesn’t seem to work in the usual way.
The debugger doesn’t connect to debugee if it is a laptop.

I have been experiencing the same thing with an IBM Thinkpad. Using
Hyperterminal I confirmed that the serial port was working. When I
enabled the kernel debugger I couldn’t get a connection. After the
machine booted I was surprised to find that the serial port was still
available. So for some reason the kernel debugger didn’t connect to the
port.

  • Steve -

Try to use DbgView from sysinternals.com

Anil

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of xxxxx@cognex.com
Sent: Friday, July 19, 2002 5:29 AM
To: Kernel Debugging Interest List
Subject: [windbg] Re: How do I connect WinDbg to a laptop target?

I have been experiencing the same thing with an IBM Thinkpad. Using
Hyperterminal I confirmed that the serial port was working. When I
enabled the kernel debugger I couldn’t get a connection. After the
machine booted I was surprised to find that the serial port was still
available. So for some reason the kernel debugger didn’t connect to the
port.

  • Steve -

You are currently subscribed to windbg as: xxxxx@tatainfotech.com
To unsubscribe send a blank email to %%email.unsub%%

My guess is the laptop either uses non-standard serial ports, or
have the serial ports on the other side of some bridge which
needs initialization by some driver which loads after the kernel
debugger loads. If that is the case, you may try checking whether
the BIOS has an option to let the BIOS do Plug-and-Play set-up.
Typically, they reverse this question, saying “Plug-and-Play OS?”
to which you answer “No” to make the BIOS do PnP.

Warning: when changing this setting, Windows often will want to
re-install all your device drivers the first time it boots;
although this is especially true of the 16 bit versions which
don’t support WinDbg. So reboot to make sure everything is cool
before trying WinDbg again after changing this.

Most modern laptops have 1394 ports, so assuming you can target
Windows XP, that’s another thing to try.

Hope this helps.

Cheers,

/ h+

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Anil
Sent: Thursday, July 18, 2002 8:10 PM
To: Kernel Debugging Interest List
Subject: [windbg] Re: How do I connect WinDbg to a laptop target?

Try to use DbgView from sysinternals.com

Anil

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of xxxxx@cognex.com
Sent: Friday, July 19, 2002 5:29 AM
To: Kernel Debugging Interest List
Subject: [windbg] Re: How do I connect WinDbg to a laptop target?

I have been experiencing the same thing with an IBM Thinkpad. Using
Hyperterminal I confirmed that the serial port was working. When I
enabled the kernel debugger I couldn’t get a connection. After the
machine booted I was surprised to find that the serial port was still
available. So for some reason the kernel debugger didn’t connect to the
port.

  • Steve -

You are currently subscribed to windbg as: xxxxx@tatainfotech.com
To unsubscribe send a blank email to %%email.unsub%%


You are currently subscribed to windbg as: xxxxx@mindcontrol.org
To unsubscribe send a blank email to %%email.unsub%%

You have to change the BOOT.lNI on the target to enable debugging.

----- Original Message -----
From:
To: “Kernel Debugging Interest List”
Sent: Thursday, July 18, 2002 7:58 PM
Subject: [windbg] Re: How do I connect WinDbg to a laptop target?

> I have been experiencing the same thing with an IBM Thinkpad. Using
> Hyperterminal I confirmed that the serial port was working. When I
> enabled the kernel debugger I couldn’t get a connection. After the
> machine booted I was surprised to find that the serial port was still
> available. So for some reason the kernel debugger didn’t connect to the
> port.
>
> - Steve -
>
> —
> You are currently subscribed to windbg as: xxxxx@telocity.com
> To unsubscribe send a blank email to %%email.unsub%%
>