search for: memblock_x86_reserve_rang

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2011 Jun 13
5
3.0.0-rc2: Xen: High amount of kernel "reserved" memory, about 33% in 256MB DOMU
Hi, another issue I''m seeing with 3.0-rc2 and Xen is that there is an unexpectedly high amount of kernel reserved memory. I suspect that Linux allocates page table entries and corresponding data structures for the whole 6GB areas of the provided ''physical RAM map'' even though it has rather big unusable holes in it. [ 0.000000] BIOS-provided physical RAM map: [