On Fri, Nov 17, 2000 at 11:26:02AM -0700, Warner Losh wrote:
> In message <[EMAIL PROTECTED]> Sheldon Hearn writes:
> : The problem with a hard lock-up out of which you can't escape into the
> : debugger is that it makes meaningful bug reports impossible.  My non-SMP
> : workstation has exhibited apparently arbitrary lock-ups since the advent
> : of SMPng.
> You can also short IOCHK to ground to get an NMI which kicks you into
> the debugger, even in an interrupt context.  I have a card I built
> from an old multi-function card to do this.  I think it is A1 and A2,
> but I don't have my ISA bus spec handy.

Just stick a metal pin (ballpoint works well) into the ISA connector
between the pins closest to the back of the machine. That is IOCHKN and GND

[hardware designer gone bad..]

Wilko Bulte                                             Arnhem, the Netherlands
[EMAIL PROTECTED]       http://www.freebsd.org          http://www.nlfug.nl

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