From: Oscar Salvador <osalvador@suse.de>
To: Qian Cai <cai@lca.pw>
Cc: nao.horiguchi@gmail.com, linux-mm@kvack.org, mhocko@kernel.org,
akpm@linux-foundation.org, mike.kravetz@oracle.com,
tony.luck@intel.com, david@redhat.com,
aneesh.kumar@linux.vnet.ibm.com, zeil@yandex-team.ru,
naoya.horiguchi@nec.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 00/15] HWPOISON: soft offline rework
Date: Tue, 14 Jul 2020 12:08:46 +0200 [thread overview]
Message-ID: <20200714100839.GA1939@linux> (raw)
In-Reply-To: <20200630050803.GA2747@lca.pw>
On Tue, Jun 30, 2020 at 01:08:03AM -0400, Qian Cai wrote:
> Even after applied the compling fix,
>
> https://lore.kernel.org/linux-mm/20200628065409.GA546944@u2004/
>
> madvise(MADV_SOFT_OFFLINE) will fail with EIO with hugetlb where it
> would succeed without this series. Steps:
>
> # git clone https://github.com/cailca/linux-mm
> # cd linux-mm; make
> # ./random 1 (Need at least two NUMA memory nodes)
> start: migrate_huge_offline
> - use NUMA nodes 0,4.
> - mmap and free 8388608 bytes hugepages on node 0
> - mmap and free 8388608 bytes hugepages on node 4
> madvise: Input/output error
Ok, sorry for the lateness, but I had to re-fetch the code on my brain again.
I just finished v4 of this patchset and it seems this problem is gone:
# ./random 1
- start: migrate_huge_offline
- use NUMA nodes 0,1.
- mmap and free 8388608 bytes hugepages on node 0
- mmap and free 8388608 bytes hugepages on node 1
- pass: mmap_offline_node_huge
- start: hotplug_memory
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Invalid argument
offline: Device or resource busy
offline: Invalid argument
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
offline: Device or resource busy
- pass: hotplug_memory
The test seems to suceed and no crash on the kernel side.
I will just run some more tests to make sure the thing is solid enough
and then I will post v4.
Thanks
--
Oscar Salvador
SUSE L3
prev parent reply other threads:[~2020-07-14 10:08 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-24 15:01 [PATCH v3 00/15] HWPOISON: soft offline rework nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 01/15] mm,hwpoison: cleanup unused PageHuge() check nao.horiguchi
2020-06-30 23:28 ` Mike Kravetz
2020-06-24 15:01 ` [PATCH v3 02/15] mm, hwpoison: remove recalculating hpage nao.horiguchi
2020-06-30 23:45 ` Mike Kravetz
2020-06-24 15:01 ` [PATCH v3 03/15] mm,madvise: call soft_offline_page() without MF_COUNT_INCREASED nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 04/15] mm,madvise: Refactor madvise_inject_error nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 05/15] mm,hwpoison-inject: don't pin for hwpoison_filter nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 06/15] mm,hwpoison: Un-export get_hwpoison_page and make it static nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 07/15] mm,hwpoison: Kill put_hwpoison_page nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 08/15] mm,hwpoison: remove MF_COUNT_INCREASED nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 09/15] mm,hwpoison: remove flag argument from soft offline functions nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 10/15] mm,hwpoison: Unify THP handling for hard and soft offline nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 11/15] mm,hwpoison: Rework soft offline for free pages nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 12/15] mm,hwpoison: Rework soft offline for in-use pages nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 13/15] mm,hwpoison: Refactor soft_offline_huge_page and __soft_offline_page nao.horiguchi
2020-06-26 16:53 ` Naresh Kamboju
2020-06-28 6:54 ` Naoya Horiguchi
2020-06-29 7:22 ` Stephen Rothwell
2020-06-29 7:33 ` HORIGUCHI NAOYA(堀口 直也)
2020-06-24 15:01 ` [PATCH v3 14/15] mm,hwpoison: Return 0 if the page is already poisoned in soft-offline nao.horiguchi
2020-06-24 15:01 ` [PATCH v3 15/15] mm,hwpoison: introduce MF_MSG_UNSPLIT_THP nao.horiguchi
2020-06-24 19:17 ` [PATCH v3 00/15] HWPOISON: soft offline rework Andrew Morton
2020-06-24 22:36 ` HORIGUCHI NAOYA(堀口 直也)
2020-06-24 22:49 ` Andrew Morton
2020-06-24 23:01 ` HORIGUCHI NAOYA(堀口 直也)
2020-06-26 13:35 ` Qian Cai
2020-06-29 10:29 ` Oscar Salvador
2020-06-30 6:50 ` HORIGUCHI NAOYA(堀口 直也)
2020-06-30 5:08 ` Qian Cai
2020-06-30 6:35 ` Oscar Salvador
2020-07-01 8:22 ` Oscar Salvador
2020-07-01 9:07 ` HORIGUCHI NAOYA(堀口 直也)
2020-07-14 10:08 ` Oscar Salvador [this message]
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