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Subject: Re: 1M hugepage size being registered on Linux
From: Balbir Singh <bsingharora@gmail.com>
To: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>, jk@ozlabs.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>, Stewart Smith
 <stewart@linux.vnet.ibm.com>
Cc: linuxppc-dev@ozlabs.org, victora@br.ibm.com, victora
 <victora@linux.vnet.ibm.com>, alistair@popple.id.au
Date: Thu, 22 Jun 2017 18:54:14 +1000
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On Wed, 2017-06-21 at 12:32 -0300, Mauricio Faria de Oliveira wrote:
> On 06/21/2017 07:33 AM, Michael Ellerman wrote:
> > > I am working on a bug related to 1M hugepage size being registered on
> > > Linux (Power 8 Baremetal - Garrison).
> > Wasn't that caused by a firmware bug?
> 
> Ben/Stewart, does that ring a bell, something new, intended or not? :- )
> 
> 

Aneesh changed the code to support just 16M and 16G hugepages for hash even
if the firmware exported that size. What is your end goal to support those
pages or to prevent them from being used?

Balbir Singh.