From: Mike Kravetz <mike.kravetz@oracle.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
libhugetlbfs@googlegroups.com
Subject: Re: [PATCH 2/2] fs, elf: drop MAP_FIXED usage from elf_map
Date: Tue, 29 May 2018 15:21:14 -0700 [thread overview]
Message-ID: <c0e447b3-4ba7-239e-6550-64de7721ad28@oracle.com> (raw)
In-Reply-To: <93ce964b-e352-1905-c2b6-deedf2ea06f8@oracle.com>
Just a quick heads up. I noticed a change in libhugetlbfs testing starting
with v4.17-rc1.
V4.16 libhugetlbfs test results
********** TEST SUMMARY
* 2M
* 32-bit 64-bit
* Total testcases: 110 113
* Skipped: 0 0
* PASS: 105 111
* FAIL: 0 0
* Killed by signal: 4 1
* Bad configuration: 1 1
* Expected FAIL: 0 0
* Unexpected PASS: 0 0
* Test not present: 0 0
* Strange test result: 0 0
**********
v4.17-rc1 (and later) libhugetlbfs test results
********** TEST SUMMARY
* 2M
* 32-bit 64-bit
* Total testcases: 110 113
* Skipped: 0 0
* PASS: 98 111
* FAIL: 0 0
* Killed by signal: 11 1
* Bad configuration: 1 1
* Expected FAIL: 0 0
* Unexpected PASS: 0 0
* Test not present: 0 0
* Strange test result: 0 0
**********
I traced the 7 additional (32-bit) killed by signal results to this
commit 4ed28639519c fs, elf: drop MAP_FIXED usage from elf_map.
libhugetlbfs does unusual things and even provides custom linker scripts.
So, in hindsight this change in behavior does not seem too unexpected. I
JUST discovered this while running libhugetlbfs tests for an unrelated
issue/change and, will do some analysis to see exactly what is happening.
Also, will take it upon myself to run libhugetlbfs test suite on a
regular (at least weekly) basis.
--
Mike Kravetz
next prev parent reply other threads:[~2018-05-29 22:21 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 14:42 [PATCH 0/2] mm: introduce MAP_FIXED_SAFE Michal Hocko
2017-11-29 14:42 ` [PATCH 1/2] " Michal Hocko
2017-12-06 5:15 ` Michael Ellerman
2017-12-06 9:27 ` Michal Hocko
2017-12-06 10:02 ` Michal Hocko
2017-12-07 12:07 ` Pavel Machek
2017-11-29 14:42 ` [PATCH 2/2] fs, elf: drop MAP_FIXED usage from elf_map Michal Hocko
2017-11-29 17:45 ` Khalid Aziz
2018-05-29 22:21 ` Mike Kravetz [this message]
2018-05-30 8:02 ` Michal Hocko
2018-05-30 15:00 ` Mike Kravetz
2018-05-30 16:25 ` Michal Hocko
2018-05-31 0:51 ` Mike Kravetz
2018-05-31 9:24 ` Michal Hocko
2018-05-31 21:46 ` Mike Kravetz
2017-11-29 14:45 ` [PATCH] mmap.2: document new MAP_FIXED_SAFE flag Michal Hocko
2017-11-30 3:16 ` John Hubbard
2017-11-30 8:23 ` Michal Hocko
2017-11-30 8:24 ` [PATCH v2] " Michal Hocko
2017-11-30 18:31 ` John Hubbard
2017-11-30 18:39 ` Michal Hocko
2017-11-29 15:13 ` [PATCH 0/2] mm: introduce MAP_FIXED_SAFE Rasmus Villemoes
2017-11-29 15:50 ` Michal Hocko
2017-11-29 22:15 ` Kees Cook
2017-11-29 22:12 ` Kees Cook
2017-11-29 22:25 ` Kees Cook
2017-11-30 6:58 ` Michal Hocko
2017-12-01 15:26 ` Cyril Hrubis
2017-12-06 4:51 ` Michael Ellerman
2017-12-06 4:54 ` Matthew Wilcox
2017-12-06 7:03 ` Matthew Wilcox
2017-12-06 7:33 ` John Hubbard
2017-12-06 7:35 ` Florian Weimer
2017-12-06 8:06 ` John Hubbard
2017-12-06 8:54 ` Florian Weimer
2017-12-07 5:46 ` Michael Ellerman
2017-12-07 19:14 ` Kees Cook
2017-12-07 19:57 ` Matthew Wilcox
2017-12-08 8:33 ` Michal Hocko
2017-12-08 20:13 ` Kees Cook
2017-12-08 20:57 ` Matthew Wilcox
2017-12-08 11:08 ` Michael Ellerman
2017-12-08 14:27 ` Pavel Machek
2017-12-08 20:31 ` Cyril Hrubis
2017-12-08 20:47 ` Florian Weimer
2017-12-08 14:33 ` David Laight
2017-12-06 4:50 ` Michael Ellerman
2017-12-06 7:33 ` Rasmus Villemoes
2017-12-06 9:08 ` Michal Hocko
2017-12-07 0:19 ` Kees Cook
2017-12-07 1:08 ` John Hubbard
-- strict thread matches above, loose matches on Subject: below --
2017-12-13 9:25 [PATCH v2 " Michal Hocko
2017-12-13 9:25 ` [PATCH 2/2] fs, elf: drop MAP_FIXED usage from elf_map Michal Hocko
2018-04-18 10:51 ` Tetsuo Handa
2018-04-18 11:33 ` Michal Hocko
2018-04-18 11:43 ` Tetsuo Handa
2018-04-18 11:55 ` Michal Hocko
2017-11-16 10:18 Michal Hocko
2017-11-16 10:19 ` [PATCH 2/2] fs, elf: drop MAP_FIXED usage from elf_map Michal Hocko
2017-11-17 0:30 ` Kees Cook
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