linux-kernel - [xfs] 325439486c: xfstests.xfs.187.fail

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Date:   Thu, 14 Apr 2022 22:40:35 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     "Darrick J. Wong" <djwong@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "Darrick J. Wong" <darrick.wong@...cle.com>, lkp@...ts.01.org,
        lkp@...el.com
Subject: [xfs]  325439486c: xfstests.xfs.187.fail



Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 325439486cf8229f5f4631792e54e959afb79df3 ("xfs: use a separate frextents counter for rt extent reservations")
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git rmap-speedups-5.19

in testcase: xfstests
version: xfstests-x86_64-1de1db8-1_20220217
with following parameters:

	disk: 4HDD
	fs: xfs
	test: xfs-external
	ucode: 0x21

test-description: xfstests is a regression test suite for xfs and other files ystems.
test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git


on test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G 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>



xfs/187	- output mismatch (see /lkp/benchmarks/xfstests/results//xfs/187.out.bad)
    --- tests/xfs/187.out	2022-02-17 11:55:00.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//xfs/187.out.bad	2022-04-12 18:49:51.641796012 +0000
    @@ -1,3 +1,4 @@
     QA output created by 187
     Format and mount
    +Expected fragmented free rt space, found none.
     Try to write a bunch of stuff to the fragmented rt space
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/xfs/187.out /lkp/benchmarks/xfstests/results//xfs/187.out.bad'  to see the entire diff)



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-5.17.0-rc6-00032-g325439486cf8" of type "text/plain" (165646 bytes)

View attachment "job-script" of type "text/plain" (5858 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (8332 bytes)

View attachment "xfstests" of type "text/plain" (4894 bytes)

View attachment "job.yaml" of type "text/plain" (4975 bytes)

View attachment "reproduce" of type "text/plain" (1169 bytes)