v2.6.13.4 : Bad page state at prep_new_page when booting with quik

Marc Zyngier maz at misterjones.org
Sat Oct 22 18:44:03 EST 2005

>>>>> "BenH" == Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:

BenH> Hrm... another thing you can do is have a look at the
BenH> init_bandit() routine. It does:


BenH> What is the value of "magic" in both cases ?

It says 0x17 in both case...

BenH> As for the rest, well, printing out the various addresses where
BenH> the kernel is copied and/or decompresses itself may help...

Will try that next. I also started diving into quik sources...

One more data point : kernel loaded with quik works just fine on a
7500 with a 604e at 200 CPU. So it looks like it is some particular
firmware/hardware combinaison that triggers this failure mode.

BenH> Have you tried also netbooting directly vmlinux.coff ? (boot
BenH> enet: might work on OldWorld OF, you'll need a bootp server)
BenH> That works with some oldworlds, not all, depends if they have a
BenH> working ethernet driver in OF.

Nope. The poor thing doesn't even have an integrated ethernet to start
with (nor its official Apple counterpart)...

Stay tuned ;-)

And if you don't know where you're going, any road will take you there...

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