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From: Bhavana Nagendra <Bhavana.Nagendra@3dlabs.com>
To: linux-kernel@vger.kernel.org
Subject: Alloc and lock down large amounts of memory
Date: Fri, 16 Aug 2002 09:38:45 -0500
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Hi,

I have a few questions with regards to alloc'ing and locking down memory.
An example 
would be very useful.  Please CC me on any responses.

1. Is there a mechanism to lock down large amounts of memory (>128M, upto
256M).
    Can 256M be allocated using vmalloc, if so is it swappable?
2. Is it possible for a user process and kernel to access the same shared
memory?
3. Can a shared memory have visibility across processes, i.e. can process A
access 
memory that was allocated by process B?
4. When a process exits will it cause a close to occur on the device?

Thanks,
Bhavana

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