linux-kernel - Re: [RFC PATCH] arm64/hugetlb enable gigantic hugepage

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20160819112107.GG32619@dhcp22.suse.cz>
Date:   Fri, 19 Aug 2016 13:21:08 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Yisheng Xie <xieyisheng1@...wei.com>
Cc:     akpm@...ux-foundation.org, guohanjun@...wei.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] arm64/hugetlb enable gigantic hugepage

On Fri 19-08-16 19:08:51, Yisheng Xie wrote:
> 
> 
> On 2016/8/19 18:25, Michal Hocko wrote:
> > On Thu 18-08-16 20:05:29, Xie Yisheng wrote:
> >> As we know, arm64 also support gigantic hugepage eg. 1G.
> > 
> > Well, I do not know that. How can I check?
> > 
> Hi Michal,
> Thank you for your reply.
> Maybe you can check the setup_hugepagesz()

OK, I see. The support was added by 084bd29810a5 ("ARM64: mm: HugeTLB
support.") in 3.11 but this got later broken. I suspect 944d9fec8d7a
("hugetlb: add support for gigantic page allocation at runtime") in
3.16 but this would require double checking. Information like this would
be really helpful in the changelog...
-- 
Michal Hocko
SUSE Labs