Re: Virtual memory leaking through IA32 emulation layer for mmap and munmap

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2004-03-11 06:48:54
>>>>> On Wed, 10 Mar 2004 11:31:50 -0800, Arun Sharma <arun.sharma@intel.com> said:

  Arun> Yes, I'd really like to see this problem fixed. I think, the
  Arun> patch needs to be as memory efficient as possible - we're
  Arun> using non-pageable kernel memory. So some numbers on the two
  Arun> level bitmap scheme vs keeping lists of head/tail pages for
  Arun> common ia32 workloads would be good.

Agreed.  The good news is that the track is only needed for parially
allocated pages, so the overhead should, in the worst-case, be
proportional to the number of vmareas, not to the amount of memory
mapped.

	--david
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Received on Wed Mar 10 14:54:10 2004

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