[PATCH] fadump: Register the memory reserved by fadump

Michael Ellerman mpe at ellerman.id.au
Fri Aug 5 17:07:01 AEST 2016

Srikar Dronamraju <srikar at linux.vnet.ibm.com> writes:

> Fadump kernel reserves large chunks of memory even before the pages are
> initialized. This could mean memory that corresponds to several nodes might
> fall in memblock reserved regions.
> Register the memory reserved by fadump, so that the cache sizes are
> calculated based on the free memory (i.e Total memory - reserved
> memory).

The memory is reserved, with memblock_reserve(). Why is that not sufficient?


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