[PATCH] powerpc/mm: Dump hash table

RashmicaGupta rashmicy at gmail.com
Mon Apr 10 15:14:11 AEST 2017



On 10/04/17 14:02, Anshuman Khandual wrote:
> On 04/10/2017 07:34 AM, Rashmica Gupta wrote:
>> Current behaviour assumes that memory in RAM is contiguous and
>> iterates from the start of RAM to (start + size of memory). When the
>> memory isn't physically contiguous, this approach doesn't work.
> In dis contiguous platform, we just finish up walking linear
> mapping prematurely before the end of the RAM ?
Yes, that is what the following example explains.
>
>> If memory exists at 0-5 GB and 6-10 GB then the current approach will
>> check if entries exist in the hash table from 0GB to 9GB. This patch
>> changes the behaviour to iterate up to the end of RAM.
> So it fixes the commit which added memblock_phys_mem_size().
> Hence needs "Fixes: " tag as well.
>
Woops, will add that!



More information about the Linuxppc-dev mailing list