[rtl] Shared Memory

[Adam Meyerowitz <adam@videodatasys.com>]

Hello Again,

I set a side some shared memory by putting an append line in lilo.conf.  I
used
the document "Using Shared Memory in Real Time Linux" as my guide.  In the
real
time process I set a pointer equal to this address with

	ptr=(MyStruct *)__va(BASE_ADDRESS)

just like in the docs.  When attempting to use the pointer, I get a crash and
the dump says "Unable to handle kernel paging request at virtual address
xxxxxxxx"

Is this another case where I need to use ioremap?

By the way is there still a 4M restriction on the size of shared memory?

Thanks
Adam
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