Re: Ctrl-c problem

[Daniel Jacobowitz <drow@mvista.com>]

Sure, it's possible.  You should probably have console and KGDB
configured for different ports...

In any case, not a GDB bug.

On Mon, Dec 02, 2002 at 12:02:07PM -0500, Richard Brunelle wrote:
> I tried echoing '\003' and I still can't stop it.
> 
> I'm wondering if the problem doesn't come when the boot resumed. After 
> the boot procedure is completed, is there a chance that the serial port 
> used on the target machine be re-configured to a different baud rate?
> 
> Daniel Jacobowitz wrote:
> 
> >Then it should work if you are using any current KGDB patch.  You can
> >try echoing '\003' out the serial port (echo '\003' > /dev/ttyS0) and
> >see if that stops it.
> >
> >On Mon, Dec 02, 2002 at 11:17:17AM -0500, Richard Brunelle wrote:
> > 
> >
> >>My target platform is a x86 single board computer running a PentiumMMX @ 
> >>266 MHz.
> >>Its seen as a standard PC with extra hardware on it (analog to digital 
> >>converter).
> >>
> >>Daniel Jacobowitz wrote:
> >>
> >>   
> >>
> >>>On Fri, Nov 29, 2002 at 04:07:14PM -0500, Richard Brunelle wrote:
> >>>
> >>>
> >>>     
> >>>
> >>>>Hi,
> >>>>
> >>>>I'm doing kernel debugging through the use of gdb running on a 
> >>>>development machine and a gdb stub running on a target machine. The 
> >>>>latter is acheive with the kgdb patch applied to a kernel 2.4.18. This 
> >>>>patch allows me to connect a development PC to a target PC through a 
> >>>>serial line. It allows me to remotely debug a patched kernel. The 
> >>>>connection works fine, I'm able to connect gdb to the target machine at 
> >>>>boot time (target remote /dev/tyS0). The problem is not hardware. I am 
> >>>>able to step in the kernel code at this time. After a few step, I 
> >>>>resume the execution of the kernel with the continue command.
> >>>>
> >>>>My problem comes when I want to stop the execution of the target kernel 
> >>>>with gdb. Usually Ctrl-c is used to stop the execution of the running 
> >>>>process. So I hit Ctrl-c but the kernel never stop.
> >>>>
> >>>>Is there any configuration for gdb to enable Ctrl-c?
> >>>>
> >>>>Does anyone ever experience this problem?
> >>>> 
> >>>>
> >>>>       
> >>>>
> >>>What's your target platform?  C-c works using the x86 KGDB stub.  I
> >>>don't know if it works on PowerPC, and it definitely doesn't work on
> >>>MIPS.  This is a stub question.
> >>>
> >>>
> >>>
> >>>     
> >>>
> >>
> >>   
> >>
> >
> > 
> >
> 
> 
> 

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer