Re: [rtl] Shared Memory

[yodaiken@fsmlabs.com]

In RTLinux 2.0 please use Tomasz's shared memory package instead of that
disgusting hack. It does work, but it is not very nice.


On Fri, Nov 05, 1999 at 10:41:17AM -0500, Adam Meyerowitz wrote:
> 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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