linux-kernel - [PATCH v1 0/5] mm, hwpoison: enable 1GB hugepage support

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-next>] [day] [month] [year] [list]

Date:   Thu,  2 Jun 2022 14:06:26 +0900
From:   Naoya Horiguchi <naoya.horiguchi@...ux.dev>
To:     linux-mm@...ck.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Miaohe Lin <linmiaohe@...wei.com>,
        Liu Shixin <liushixin2@...wei.com>,
        Yang Shi <shy828301@...il.com>,
        Oscar Salvador <osalvador@...e.de>,
        Muchun Song <songmuchun@...edance.com>,
        Naoya Horiguchi <naoya.horiguchi@....com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 0/5] mm, hwpoison: enable 1GB hugepage support

Hi,

This patchset enables memory error handling on 1GB hugepage.

"Save raw error page" patch (1/4 of patchset [1]) is necessary, so it's
included in this series (the remaining part of hotplug related things are
still in progress).  Patch 2/5 solves issues in a corner case of hugepage
handling, which might not be the main target of this patchset, but slightly
related.  It was posted separately [2] but depends on 1/5, so I group them
together.

Patch 3/5 to 5/5 are main part of this series and fix a small issue about
handling 1GB hugepage, which I hope will be workable.

[1]: https://lore.kernel.org/linux-mm/20220427042841.678351-1-naoya.horiguchi@linux.dev/T/#u

[2]: https://lore.kernel.org/linux-mm/20220511151955.3951352-1-naoya.horiguchi@linux.dev/T/

Please let me know if you have any suggestions and comments.

Thanks,
Naoya Horiguchi
---
Summary:

Naoya Horiguchi (5):
      mm, hwpoison, hugetlb: introduce SUBPAGE_INDEX_HWPOISON to save raw error page
      mm,hwpoison: set PG_hwpoison for busy hugetlb pages
      mm, hwpoison: make __page_handle_poison returns int
      mm, hwpoison: skip raw hwpoison page in freeing 1GB hugepage
      mm, hwpoison: enable memory error handling on 1GB hugepage

 include/linux/hugetlb.h | 24 ++++++++++++++++++++++++
 include/linux/mm.h      |  2 +-
 include/ras/ras_event.h |  1 -
 mm/hugetlb.c            |  9 +++++++++
 mm/memory-failure.c     | 48 +++++++++++++++++++++---------------------------
 5 files changed, 55 insertions(+), 29 deletions(-)