Crashdump support in PPC?

[Donald Lee <MacPPC2%caution.icompute.com@localhost>]

Do we have crashdump support in MacPPC NetBSD 5.0.2? (unmodified!)

I have a panic, (again).  It is a production machine, and I'd
like to take a closer look at the crash dump, but the panic/reboot did
not appear to produce one.  All I got was what I typed in from the
console:

trap: kernel read DSI trap @ 0xde0c5010 by 0x3ec85c (DSISR 0x40000000, err=14), 
lr 0x3ec850
panic: trap
Begin traceback...
0xd45c7d00: at traap+0x108
0xd45c7d90: kernel DSI read trap at 0xde0c5010 by turnstile_block+0x140: 
srr1=0x9032
        r1=0xd45c7e50 cr=0x84000044 xer=0 ctr=0x3d0778 dsisr=0x40000000
0xd45c7e50: at turnstile_block+0xd8
0xd45c7e80: at mutex_vector_enter+0x184
0xd45c7eb0: at callout_softclock+0x1a8
0xd45c7f10: at softint_thread+0xf4
0xd45c7f40: at emptyidlespin+0x10
0xd45c7f50: at aprint_error_internal+0x78
trap: pid 0.5 (system): kernel MCHK trap @ 0x49eba8 (SRR1=0x149030)
panic: trap
Faulted in mid-traceback; aborting... dumpsys: TBD


When this panic happens, the USB keyboard is useless, so
I can't ask for kernel debugger ops.  Whatever happens has to
happen automagically.

Do I have to do something special to get this to happen?  Is it supported
in MacPPC NetBSD?

Thanks for any help,

-dgl-