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    SubjectRe: [md] e1a86dbbbd: mdadm-selftests.enchmarks/mdadm-selftests/tests/07layouts.fail
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    Date
    This issue had been fixed. I send the following patch in another thread. 
    Please take a look. Thank you.

    [PATCH] md: get sysfs entry after redundancy attr group create

    Thanks,

    Junxiao.

    On 8/3/20 9:00 AM, Junxiao Bi wrote:
    > Hi Song,
    >
    > I am working on setup an env to reproduce, will update soon.
    >
    > Thanks,
    >
    > Junxiao.
    >
    > On 8/2/20 10:52 PM, Song Liu wrote:
    >>
    >>> On Jul 29, 2020, at 2:04 AM, kernel test robot
    >>> <rong.a.chen@intel.com> wrote:
    >>>
    >>> Greeting,
    >>>
    >>> FYI, we noticed the following commit (built with gcc-9):
    >>>
    >>> commit: e1a86dbbbd6a77f73c3d099030495fa31f181e2f ("md: fix deadlock
    >>> causing by sysfs_notify")
    >>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
    >>>
    >>>
    >>> in testcase: mdadm-selftests
    >>> with following parameters:
    >>>
    >>>     disk: 1HDD
    >>>     test_prefix: 07layout
    >>>     ucode: 0x21
    >>>
    >>>
    >>>
    >>> on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz
    >>> with 4G 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 <rong.a.chen@intel.com>
    >>>
    >>>
    >>>
    >>> 2020-07-29 01:06:34 mkdir -p /var/tmp
    >>> 2020-07-29 01:06:34 mke2fs -t ext3 -b 4096 -J size=4 -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/udev/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
    >>>
    >>>
    >>>
    >>> To reproduce:
    >>>
    >>>         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
    >>>
    >>>
    >>>
    >>> Thanks,
    >>> Rong Chen
    >>>
    >>> <config-5.8.0-rc4-00129-ge1a86dbbbd6a7><job-script.txt><kmsg.xz><mdadm-selftests.txt><job.yaml><reproduce.txt><07layouts.log>
    >>>
    >> Hi Junxiao,
    >>
    >> Could you please look into this issue?
    >>
    >> Thanks,
    >> Song
    >>

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