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

[Matt Mackall]

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.

-- 
Matt Mackall : http://www.selenic.com : Linux development and consulting
-
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/