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    SubjectRe: [discuss] Re: kgdb for x86_64 2.6 kernels
    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
    Preemption patch:

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