Re: [discuss] Re: kgdb for x86_64 2.6 kernels

[George Anzinger]

Matt Mackall wrote:
> On Tue, Jan 13, 2004 at 01:26:46PM -0800, George Anzinger wrote:
>
> > > Serial interface should be configurable independent of kgdb and may not be 
> > > configured if ethernet interface is configured.  Serial interface is far 
> > > simpler hence superior for debugging purposes. If it's available, using 
> > > ethernet interface is out of question. Ethernet interface can be used when 
> > > serial hardware isn't present or is being used for some other purposes.
> >
> > I rather think that the serial inteface should be the fall back unless the 
> > user has told us at configure time that it is not available.  I am not 
> > prepared to make a statment that it is better than eth.  The eth intface 
> > should be much faster, but it has its fingers into a large part of the 
> > kernel that MAY be the subject of the current session.  Thus, I think that 
> > eth may be better, IF one is clearly not involved in debugging those areas 
> > of the kernel.  (Which, by the way, we need to enumerate at some point.)
>
>
> I have in mind creating some other interfaces that will be on a par
> with serial for early boot availability. So lets not frame this in
> terms of eth vs serial. We can throw a priority int in the config
> interface, stuff that in the plug struct, and pick whichever one's
> highest and claims to be currently available.
Right.  I had hoped that we might one day be able to use the USB and I am sure 
there are others.


--
George Anzinger   george@xxxxxxxxxx
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/