On Apr 27, 2005, at 7:21 AM, Andrew Gallatin wrote:
Hagen writes:
Hi Apple,
is there any test-guide to test the compatibility of 32bit driver with
Tiger? Especially how can I test the driver access to DARTs 32bit
mapped
memory regions above 4GB?
You're now allowed to talk about Tiger until it is officially released
on Friday. But remember that panther supports 8GB of RAM...
Also that the kernel in Tiger will continue to use 32b addressing just
like in prior versions of Mac OS X (this is public knowledge). In other
words addressing model isn't something much to worry about (in theory)
for drivers on Tiger.
However your question of how to test above 4GB implies you likely need
more then 4GB of RAM in a system and a way to push things to get memory
with a physical address with bits above 32 set. Personally I don't know
how best to do that, others may have suggestions
If you are looking for systems to test on consider Apple compatibility
labs.
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