CVS nv driver + PowerPC Linux

Hi folks.  I'm using X built from the CVS HEAD branch on a Mac cube with
an Nvidia GeForce 2.  I had been using the same build of the X server
and modules for a couple of months, but replaced it last week after
hearing that the initialization bug that made it impossible to start X
twice had been fixed.  Now, however, I am not able to start X at all.
Here is all the output I get when starting the server:

XFree86 Version 4.2.99.2 / X Window System
(protocol Version 11, revision 0, vendor release 6600)
Release Date: 25 November 2002
        If the server is older than 6-12 months, or if your card is
        newer than the above date, look for a newer version before
        reporting problems.  (See http://www.XFree86.Org/)
Build Operating System: Linux 2.4.19 ppc [ELF] 
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/XFree86.0.log", Time: Sun Dec  1 14:53:27 2002
(==) Using config file: "/etc/X11/XF86Config-4"

After this, the monitor seems to no longer be receiving a video signal,
or perhaps the signal is way out of range or something.  When I attach
to the running XFree86 process in gdb, I see the same symptoms I saw
when the server had the video card initialization problem.  The
execution pointer seem to have flown out way beyond the stack
boundaries, and stack itself just seems gone:
(gdb) bt
#0  0x1074b6bc in ?? ()

So this looks an awful lot like the misfeature that was corrected in
early november, except now it's happening the first time the X server
tries to initialize the video hardware, rather than the second.  Any
help would be much appreciated at this point.  I can provide more
information if you need it.

Thanks!
noah

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