20 Jun
2011
20 Jun
'11
12:13 p.m.
Hi OM,
Thanks for looking into this.
On Mon, Jun 20, 2011 at 02:01:00PM +0200, Ole-Morten Duesund wrote:
I don't know exactly where the memory goes, but on
my 32-bit VMs
boot-time reported HIGHMEM + LOWMEM equals the amount of assigned memory,
so the "missing" memory seems to be linux-kernel overhead somewhere. My
64-bit VMs obviously don't show HIGHMEM and LOWMEM, but the "BIOS-provided
physical RAM map:" seems to fit nicely with the assigned memory.
Do your 64-bit VMs exhibit this issue at all?
Someone running Debian wheezy (testing) has reported a 240M VM
missing almost 60M! And their HighTotal in /proc/meminfo has wrapped
over:
HighTotal: 4294959104 kB
so that looks quite broken.
Someone needs to report a bug to Debian about that if it hasn't been
already, and it'd also be nice to know if it goes away with 64-bit.
Cheers,
Andy