[linus:master] [mm/ksm] 5e924ff54d: ltp.ksm01.fail

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hi, Stefan Roesch,

we reported
"[linux-next:master] [mm/ksm]  5e924ff54d: ltp.ksm01_1.fail"
in
https://lore.kernel.org/all/202311031548.66780ff5-oliver.sang@xxxxxxxxx/
when this commit is in linux-next/master.

now we noticed this commit is merged in mainline, and we still observed
same issue. just FYI.


Hello,

kernel test robot noticed "ltp.ksm01.fail" on:

commit: 5e924ff54d088828794d9f1a4d5bf17808f7270e ("mm/ksm: add "smart" page scanning mode")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linus/master 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814]
[test failed on linux-next/master 8728c14129df7a6e29188a2e737b4774fb200953]

in testcase: ltp
version: ltp-x86_64-14c1f76-1_20230715
with following parameters:

	disk: 1HDD
	test: mm-00/ksm01



compiler: gcc-12
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz (Kaby Lake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)




If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202311161132.13d8ce5a-oliver.sang@xxxxxxxxx



Running tests.......
<<<test_start>>>
tag=ksm01 stime=1699563923
cmdline="ksm01"
contacts=""
analysis=exit
<<<test_output>>>
tst_kconfig.c:87: TINFO: Parsing kernel config '/proc/config.gz'
tst_test.c:1558: TINFO: Timeout per run is 0h 00m 30s
mem.c:422: TINFO: wait for all children to stop.
mem.c:388: TINFO: child 0 stops.
mem.c:388: TINFO: child 1 stops.
mem.c:388: TINFO: child 2 stops.
mem.c:495: TINFO: KSM merging...
mem.c:434: TINFO: resume all children.
mem.c:422: TINFO: wait for all children to stop.
mem.c:344: TINFO: child 1 continues...
mem.c:347: TINFO: child 1 allocates 128 MB filled with 'a'
mem.c:344: TINFO: child 2 continues...
mem.c:347: TINFO: child 2 allocates 128 MB filled with 'a'
mem.c:344: TINFO: child 0 continues...
mem.c:347: TINFO: child 0 allocates 128 MB filled with 'c'
mem.c:400: TINFO: child 1 stops.
mem.c:400: TINFO: child 0 stops.
mem.c:400: TINFO: child 2 stops.
ksm_helper.c:36: TINFO: ksm daemon takes 2s to run two full scans
mem.c:264: TINFO: check!
mem.c:255: TPASS: run is 1.
mem.c:255: TPASS: pages_shared is 2.

....

mem.c:255: TPASS: pages_shared is 1.
mem.c:255: TPASS: pages_sharing is 98302.
mem.c:252: TFAIL: pages_volatile is not 0 but 1.     <-----
mem.c:252: TFAIL: pages_unshared is not 1 but 0.     <-----
mem.c:255: TPASS: sleep_millisecs is 0.
mem.c:255: TPASS: pages_to_scan is 98304.

....

mem.c:415: TINFO: child 1 finished.
mem.c:415: TINFO: child 2 finished.
mem.c:415: TINFO: child 0 finished.

Summary:
passed   40
failed   2
broken   0
skipped  0
warnings 0
incrementing stop
<<<execution_status>>>
initiation_status="ok"
duration=9 termination_type=exited termination_id=1 corefile=no
cutime=342 cstime=293
<<<test_end>>>
INFO: ltp-pan reported some tests FAIL
LTP Version: 20230516-75-g2e582e743

       ###############################################################

            Done executing testcases.
            LTP Version:  20230516-75-g2e582e743
       ###############################################################




The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231116/202311161132.13d8ce5a-oliver.sang@xxxxxxxxx



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki





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