linux-kernel - [linus:master] [selftests/vm] c07c343cda: kernel-selftests.vm.split_huge_page

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Message-ID: <202212041657.3849e06b-oliver.sang@intel.com>
Date:   Sun, 4 Dec 2022 17:02:05 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Zach O'Keefe <zokeefe@...gle.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Zi Yan <ziy@...dia.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Chris Kennelly <ckennelly@...gle.com>,
        "David Hildenbrand" <david@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        "Hugh Dickins" <hughd@...gle.com>,
        James Houghton <jthoughton@...gle.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>,
        Miaohe Lin <linmiaohe@...wei.com>,
        Minchan Kim <minchan@...nel.org>,
        Pasha Tatashin <pasha.tatashin@...een.com>,
        Peter Xu <peterx@...hat.com>,
        Rongwei Wang <rongwei.wang@...ux.alibaba.com>,
        "SeongJae Park" <sj@...nel.org>, Song Liu <songliubraving@...com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Yang Shi <shy828301@...il.com>, <linux-kernel@...r.kernel.org>,
        <linux-mm@...ck.org>
Subject: [linus:master] [selftests/vm]  c07c343cda:
 kernel-selftests.vm.split_huge_page_test.fail


Greeting,

FYI, we noticed kernel-selftests.vm.split_huge_page_test.fail due to commit (built with gcc-11):

commit: c07c343cda8ef02985ac6583a2e5af892726f734 ("selftests/vm: dedup THP helpers")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linux-next/master 2934ceb4e967b9233d0f97732e47175574a11406]

in testcase: kernel-selftests
version: kernel-selftests-x86_64-2ed09c3b-1_20221128
with following parameters:

	sc_nr_hugepages: 2
	group: vm

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202212041657.3849e06b-oliver.sang@intel.com


# selftests: vm: split_huge_page_test
# No THP is allocated
not ok 3 selftests: vm: split_huge_page_test # exit=1


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



View attachment "config-6.0.0-rc3-00565-gc07c343cda8e" of type "text/plain" (168904 bytes)

View attachment "job-script" of type "text/plain" (5855 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (58368 bytes)

View attachment "kernel-selftests" of type "text/plain" (250986 bytes)

View attachment "job.yaml" of type "text/plain" (4864 bytes)

View attachment "reproduce" of type "text/plain" (273 bytes)