I've run into the bug described at:
http://mail-index.netbsd.org/netbsd-bugs/2010/03/17/msg016596.html
and the proposed fix (splserial) seems to work. This is on an amd64 VM;
we'll try a physical (multi-cpu) machine as well.
Reading the various messages, I get the impression that KGDB on MP
systems will behave a bit oddly; I don't understand if splserial on one
CPU will keep all CPUs from interrupting and trying to read. Is anyone
working on a better fix, perhaps even as spiffy as letting gdb switch
among CPUs?
I am guessing that for now one should just boot with a single CPU to use
kgdb. Does that sound like the right advice?
Greg
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