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Hello,

> I'm surprised that other people haven't seen this problem so I'm=20
> wondering if it is specific to my hardware (early Aluminum PowerBook
> G4).

It happens on all my macppc boxes ( S900 with G3, iMac G3, iBook G4 ),
it went over the list a few times but I didn't find time yet to
investigate any further. Symptoms differ slightly - on the S900 it's
just a DEFAULT CATCH right after loading, the iBook behaves like your
PowerBook.

> Kernels built with DIAGNOSTIC seem to fault in
> oea_machdep.c:oea_init() on line 175 where memcpy() is called to
> populate the trap vector at address 0.
>=20
> What I don't understand is that addresses 0x0-0x100 are zeroed
> on line 166 which doesn't cause a trap.  Also, changing the for loop
> to start populating trap vectors at address EXC_RST instead of 0
> allows kernels with DIAGNOSTIC to boot.

Whatever caused this must be a fairly recent change, a 3.99.14 kernel
didn't have this problem IIRC.

have fun
Michael

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