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Old 01-27-2010, 12:28 AM   #1
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Question 64-bit Linux OS and 32-bit application


I am new to this forum and need help from the Linux gurus over here.
If we have 64-bit SUSE Linux OS and 32-bit application running on a board which has 30 GB RAM, it is for sure that the OS can access the whole 30 GB RAM. But, the question is can the 32-bit application access the whole 30 GB RAM or only 4 GB of RAM? I guess only 4 GB. Could any one of you have a quick answer and the theory behind the answer?

If only ONE 32-bit application is running on a 64-bit SUSE OS on a board having 30 GB RAM, application can use 4 GB RAM and 26 GB RAM will be a waste and not used at all ???

Thanks & Regards,
Old 01-27-2010, 12:31 AM   #2
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Hi there!

Welcome to LQ.

I notice you have an identical thread over here: which already has one reply. Please continue the discussion over there, and I will have this thread closed.

Kind regards,


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