linux-kernel - Re: [md] e1a86dbbbd: mdadm-selftests.enchmarks/mdadm-selftests/tests/07layouts.fail

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Date:   Mon, 3 Aug 2020 09:00:14 -0700
From:   Junxiao Bi <junxiao.bi@...cle.com>
To:     Song Liu <songliubraving@...com>
Cc:     LKML <linux-kernel@...r.kernel.org>, LKP <lkp@...ts.01.org>,
        kernel test robot <rong.a.chen@...el.com>
Subject: Re: [md] e1a86dbbbd:
 mdadm-selftests.enchmarks/mdadm-selftests/tests/07layouts.fail

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@...el.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@...el.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
>