Messages in this thread | | | Date | Tue, 27 Nov 2012 09:12:53 +0800 | From | Jiang Liu <> | Subject | Re: [PATCH v2 5/5] page_alloc: Bootmem limit with movablecore_map |
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On 2012-11-26 23:48, H. Peter Anvin wrote: > On 11/26/2012 05:15 AM, Tang Chen wrote: >> >> Hi Wu, >> >> That is really a problem. And, before numa memory got initialized, >> memblock subsystem would be used to allocate memory. I didn't find any >> approach that could fully address it when I making the patches. There >> always be risk that memblock allocates memory on ZONE_MOVABLE. I think >> we can only do our best to prevent it from happening. >> >> Your patch is very helpful. And after a shot look at the code, it seems >> that acpi_numa_memory_affinity_init() is an architecture dependent >> function. Could we do this somewhere which is not depending on the >> architecture ? >> > > The movable memory should be classified as a non-RAM type in memblock, > that way we will not allocate from it early on. Hi Peter,
I have tried to reserved movable memory from bootmem allocator, but the ACPICA subsystem is initialized later than setting up movable zone. So still trying to figure out a way to setup/reserve movable zones according to information from static ACPI tables such as SRAT/MPST etc.
Regards! Gerry
> > -hpa > > > . >
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