Date: Fri, 4 Mar 2011 17:36:42 +0300 From: Dmitry Krivenok <krivenok.dmitry@gmail.com> To: freebsd-hackers@freebsd.org Subject: hw.physmem (loader.conf and sysctl) Message-ID: <AANLkTi=QDBjw26fhZSRg6wrTB=E0-yEsWZuRK%2BZ7L03J@mail.gmail.com>
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Hello Hackers, I've limited the amount of physical memory visible for my FreeBSD-8.2 by adding the following in loader.conf: $ cat /boot/loader.conf | grep hw.physmem hw.physmem="500M" $ However, according to sysctl, the system sees $ sysctl hw.physmem hw.physmem: 507445248 $ The difference is (500 * 2**20 - 507445248) / 2**20 == 16.0625 Mb. How does the system use this "hidden" memory? Thanks! -- Sincerely yours, Dmitry V. Krivenok e-mail: krivenok.dmitry@gmail.com skype: krivenok_dmitry jabber: krivenok_dmitry@jabber.ru icq: 242-526-443
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