Date: Wed, 24 Sep 2008 19:46:03 -0700 From: "Mohd Fahadullah" <fahadullah@gmail.com> To: freebsd-questions@freebsd.org Subject: Incorrect physical memory when hw.physmem is set Message-ID: <db346c9d0809241946o30fb3f61o34618740086ffded@mail.gmail.com>
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Hello, There is a peculiar case when physical memory limit is set through hw.physmem and Freebsd sets usable memory to much lesser value. In cases with 8 GB of RAM where the physical memory address space is remapped above 4 GB and if we set hw.physmem to 4 GB then Freebsd actually skips the segments remapped above 4 GB. So we end up with much less memory than 4 GB depending upon the memory hole in the top of 4 GB address space. I would like to know if someone else came across the same issue. Thank you, Mohd
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