2022-12-04 09:08:34

by kernel test robot

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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 <[email protected]>
| Link: https://lore.kernel.org/oe-lkp/[email protected]


# 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



Attachments:
(No filename) (1.77 kB)
config-6.0.0-rc3-00565-gc07c343cda8e (171.43 kB)
job-script (5.86 kB)
dmesg.xz (57.00 kB)
kernel-selftests (249.56 kB)
job.yaml (4.88 kB)
reproduce (279.00 B)
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