From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: sasha.levin@oracle.com
Cc: linux-mm@kvack.org, akpm@linux-foundation.org, mpm@selenic.com,
cpw@sgi.com, kosaki.motohiro@jp.fujitsu.com, hannes@cmpxchg.org,
kamezawa.hiroyu@jp.fujitsu.com, mhocko@suse.cz,
aneesh.kumar@linux.vnet.ibm.com, xemul@parallels.com,
riel@redhat.com, kirill.shutemov@linux.intel.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 11/11] mempolicy: apply page table walker on queue_pages_range()
Date: Sun, 23 Feb 2014 13:59:47 -0500 [thread overview]
Message-ID: <530a4540.c7230f0a.4b3d.6f17SMTPIN_ADDED_BROKEN@mx.google.com> (raw)
In-Reply-To: <5309F1F8.6040006@oracle.com>
On Sun, Feb 23, 2014 at 08:04:56AM -0500, Sasha Levin wrote:
...
> And here it is:
>
> [ 755.524966] page:ffffea0000000000 count:0 mapcount:1 mapping: (null) index:0x0
> [ 755.526067] page flags: 0x0()
>
> Followed by the same stack trace as before.
Thanks.
It seems that this page is pfn 0, so we might have invalid value on page
table entry (pointing to pfn 0.) In this -next tree we have some update around
hugetlb fault code (like "mm, hugetlb: improve page-fault scalability",)
so I'll check there could be a race window from this viewpoint.
Naoya
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next prev parent reply other threads:[~2014-02-23 19:00 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-10 21:44 [PATCH 00/11 v5] update page table walker Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 01/11] pagewalk: update page table walker core Naoya Horiguchi
2014-02-12 5:39 ` Joonsoo Kim
2014-02-12 15:40 ` Naoya Horiguchi
2014-02-20 23:47 ` Sasha Levin
2014-02-21 3:20 ` Naoya Horiguchi
2014-02-21 4:30 ` Sasha Levin
[not found] ` <5306c629.012ce50a.6c48.ffff9844SMTPIN_ADDED_BROKEN@mx.google.com>
2014-02-21 6:43 ` Sasha Levin
2014-02-21 16:35 ` Naoya Horiguchi
[not found] ` <1393000553-ocl81482@n-horiguchi@ah.jp.nec.com>
2014-02-21 16:50 ` Sasha Levin
2014-06-02 23:49 ` Dave Hansen
2014-06-03 0:29 ` Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 02/11] pagewalk: add walk_page_vma() Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 03/11] smaps: redefine callback functions for page table walker Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 04/11] clear_refs: " Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 05/11] pagemap: " Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 06/11] numa_maps: " Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 07/11] memcg: " Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 08/11] madvise: " Naoya Horiguchi
2014-03-21 1:47 ` Sasha Levin
2014-03-21 2:43 ` [PATCH] madvise: fix locking in force_swapin_readahead() (Re: [PATCH 08/11] madvise: redefine callback functions for page table walker) Naoya Horiguchi
2014-03-21 5:16 ` Hugh Dickins
2014-03-21 6:22 ` Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 09/11] arch/powerpc/mm/subpage-prot.c: use walk_page_vma() instead of walk_page_range() Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 10/11] pagewalk: remove argument hmask from hugetlb_entry() Naoya Horiguchi
2014-02-10 21:44 ` [PATCH 11/11] mempolicy: apply page table walker on queue_pages_range() Naoya Horiguchi
2014-02-21 6:30 ` Sasha Levin
2014-02-21 16:58 ` Naoya Horiguchi
[not found] ` <530785b2.d55c8c0a.3868.ffffa4e1SMTPIN_ADDED_BROKEN@mx.google.com>
2014-02-21 17:18 ` Sasha Levin
2014-02-21 17:25 ` Naoya Horiguchi
[not found] ` <1393003512-qjyhnu0@n-horiguchi@ah.jp.nec.com>
2014-02-23 13:04 ` Sasha Levin
2014-02-23 18:59 ` Naoya Horiguchi [this message]
2014-02-10 22:42 ` [PATCH 00/11 v5] update page table walker Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2014-01-13 16:54 [PATCH 00/11 v4] " Naoya Horiguchi
2014-01-13 16:54 ` [PATCH 11/11] mempolicy: apply page table walker on queue_pages_range() Naoya Horiguchi
2013-12-11 22:08 [PATCH 00/11 v3] update page table walker Naoya Horiguchi
2013-12-11 22:09 ` [PATCH 11/11] mempolicy: apply page table walker on queue_pages_range() Naoya Horiguchi
2013-10-30 21:44 [PATCH 00/11 v2] update page table walker Naoya Horiguchi
2013-10-30 21:44 ` [PATCH 11/11] mempolicy: apply page table walker on queue_pages_range() Naoya Horiguchi
2013-10-14 17:36 [PATCH 0/11] update page table walker Naoya Horiguchi
2013-10-14 17:37 ` [PATCH 11/11] mempolicy: apply page table walker on queue_pages_range() Naoya Horiguchi
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