linux-kernel - [iomap] db074436f4: xfstests.generic.446.fail

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Message-ID: <20190726075355.GD22106@shao2-debian>
Date:   Fri, 26 Jul 2019 15:53:55 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     Christoph Hellwig <hch@....de>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [iomap] db074436f4: xfstests.generic.446.fail

FYI, we noticed the following commit (built with gcc-7):

commit: db074436f421967f4f30cfbb6fbc2a728f3e62b3 ("iomap: move the direct IO code into a separate file")
https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git master

in testcase: xfstests
with following parameters:

	disk: 4HDD
	fs: xfs
	test: generic-group5

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: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

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 <rong.a.chen@...el.com>


2019-07-25 10:22:57 export TEST_DIR=/fs/vda
2019-07-25 10:22:57 export TEST_DEV=/dev/vda
2019-07-25 10:22:57 export FSTYP=xfs
2019-07-25 10:22:57 export SCRATCH_MNT=/fs/scratch
2019-07-25 10:22:57 mkdir /fs/scratch -p
2019-07-25 10:22:57 export SCRATCH_DEV=/dev/vdd
2019-07-25 10:22:57 export SCRATCH_LOGDEV=/dev/vdb
meta-data=/dev/vda               isize=512    agcount=4, agsize=16777216 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1
data     =                       bsize=4096   blocks=67108864, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=32768, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
2019-07-25 10:22:58 export MKFS_OPTIONS=-mreflink=1
2019-07-25 10:22:58 sed "s:^:generic/:" /lkp/lkp/src/pack/xfstests-addon/tests/generic-group5 | grep -F -f merged_ignored_files
ignored by lkp: generic/476
2019-07-25 10:22:58 sed "s:^:generic/:" /lkp/lkp/src/pack/xfstests-addon/tests/generic-group5 | grep -v -F -f merged_ignored_files
2019-07-25 10:22:58 ./check generic/445 generic/446 generic/447 generic/448 generic/449 generic/450 generic/451 generic/452 generic/453 generic/454 generic/456 generic/458 generic/459 generic/460 generic/461 generic/463 generic/464 generic/465 generic/466 generic/467 generic/468 generic/469 generic/471 generic/472 generic/473 generic/474 generic/475 generic/477 generic/478 generic/479 generic/480 generic/481 generic/483 generic/484 generic/485 generic/486 generic/487 generic/488 generic/489 generic/490 generic/491 generic/492 generic/493 generic/494 generic/495 generic/496 generic/497 generic/498 generic/499 generic/500 generic/501 generic/502 generic/503 generic/504 generic/505 generic/506 generic/507 generic/508 generic/509 generic/510 generic/511 generic/512 generic/513 generic/514 generic/515 generic/516 generic/517 generic/518 generic/519 generic/520 generic/522
FSTYP         -- xfs (debug)
PLATFORM      -- Linux/x86_64 vm-snb-4G-1884f46d9ec3 5.2.0-08446-gdb074436f42196 #1 SMP Thu Jul 25 07:23:33 CST 2019
MKFS_OPTIONS  -- -f -mreflink=1 /dev/vdd
MOUNT_OPTIONS -- /dev/vdd /fs/scratch

generic/445	 1s
generic/446	[failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//generic/446.out.bad)
    --- tests/generic/446.out	2019-07-24 19:52:14.000000000 +0800
    +++ /lkp/benchmarks/xfstests/results//generic/446.out.bad	2019-07-25 10:23:11.703207317 +0800
    @@ -1,2 +1,3 @@
     QA output created by 446
     Silence is golden
    +_check_dmesg: something found in dmesg (see /lkp/benchmarks/xfstests/results//generic/446.dmesg)
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/446.out /lkp/benchmarks/xfstests/results//generic/446.out.bad'  to see the entire diff)


To reproduce:

        # build kernel
	cd linux
	cp config-5.2.0-08446-gdb074436f42196 .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email



Thanks,
Rong Chen

View attachment "config-5.2.0-08446-gdb074436f42196" of type "text/plain" (198941 bytes)

View attachment "job-script" of type "text/plain" (5507 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (31188 bytes)

View attachment "xfstests" of type "text/plain" (6495 bytes)