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From:   Song Liu <songliubraving@fb.com>
To:     Junxiao Bi <junxiao.bi@oracle.com>
CC:     LKML <linux-kernel@vger.kernel.org>, LKP <lkp@lists.01.org>,
        "kernel test robot" <rong.a.chen@intel.com>
Subject: Re: [md] e1a86dbbbd:
 mdadm-selftests.enchmarks/mdadm-selftests/tests/07layouts.fail
Thread-Topic: [md] e1a86dbbbd:
 mdadm-selftests.enchmarks/mdadm-selftests/tests/07layouts.fail
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Date:   Mon, 3 Aug 2020 05:52:02 +0000
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> On Jul 29, 2020, at 2:04 AM, kernel test robot <rong.a.chen@intel.com> wr=
ote:
>=20
> Greeting,
>=20
> FYI, we noticed the following commit (built with gcc-9):
>=20
> commit: e1a86dbbbd6a77f73c3d099030495fa31f181e2f ("md: fix deadlock causi=
ng by sysfs_notify")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>=20
>=20
> in testcase: mdadm-selftests
> with following parameters:
>=20
> 	disk: 1HDD
> 	test_prefix: 07layout
> 	ucode: 0x21
>=20
>=20
>=20
> on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 4=
G memory
>=20
> caused below changes (please refer to attached dmesg/kmsg for entire log/=
backtrace):
>=20
>=20
>=20
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <rong.a.chen@intel.com>
>=20
>=20
>=20
> 2020-07-29 01:06:34 mkdir -p /var/tmp
> 2020-07-29 01:06:34 mke2fs -t ext3 -b 4096 -J size=3D4 -q /dev/sda3
> 2020-07-29 01:07:36 mount -t ext3 /dev/sda3 /var/tmp
> sed -e 's/{DEFAULT_METADATA}/1.2/g' \
> -e 's,{MAP_PATH},/run/mdadm/map,g'  mdadm.8.in > mdadm.8
> /usr/bin/install -D -m 644 mdadm.8 /usr/share/man/man8/mdadm.8
> /usr/bin/install -D -m 644 mdmon.8 /usr/share/man/man8/mdmon.8
> /usr/bin/install -D -m 644 md.4 /usr/share/man/man4/md.4
> /usr/bin/install -D -m 644 mdadm.conf.5 /usr/share/man/man5/mdadm.conf.5
> /usr/bin/install -D -m 644 udev-md-raid-creating.rules /lib/udev/rules.d/=
01-md-raid-creating.rules
> /usr/bin/install -D -m 644 udev-md-raid-arrays.rules /lib/udev/rules.d/63=
-md-raid-arrays.rules
> /usr/bin/install -D -m 644 udev-md-raid-assembly.rules /lib/udev/rules.d/=
64-md-raid-assembly.rules
> /usr/bin/install -D -m 644 udev-md-clustered-confirm-device.rules /lib/ud=
ev/rules.d/69-md-clustered-confirm-device.rules
> /usr/bin/install -D  -m 755 mdadm /sbin/mdadm
> /usr/bin/install -D  -m 755 mdmon /sbin/mdmon
> Testing on linux-5.8.0-rc4-00129-ge1a86dbbbd6a7 kernel
> /lkp/benchmarks/mdadm-selftests/tests/07layouts... FAILED - see /var/tmp/=
07layouts.log and /var/tmp/fail07layouts.log for details
> 07layouts TIMEOUT
>=20
>=20
>=20
> To reproduce:
>=20
>        git clone https://github.com/intel/lkp-tests.git
>        cd lkp-tests
>        bin/lkp install job.yaml  # job file is attached in this email
>        bin/lkp run     job.yaml
>=20
>=20
>=20
> Thanks,
> Rong Chen
>=20
> <config-5.8.0-rc4-00129-ge1a86dbbbd6a7><job-script.txt><kmsg.xz><mdadm-se=
lftests.txt><job.yaml><reproduce.txt><07layouts.log>

Hi Junxiao,=20

Could you please look into this issue?=20

Thanks,
Song