linux-kernel - Re: [lkp-robot] [Btrfs] 28785f70ef: xfstests.generic.273.fail

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Date:   Sun, 30 Jul 2017 15:39:22 +0200
From:   Thorsten Leemhuis <regressions@...mhuis.info>
To:     kernel test robot <xiaolong.ye@...el.com>,
        Liu Bo <bo.li.liu@...cle.com>
Cc:     David Sterba <dsterba@...e.com>,
        Nikolay Borisov <nborisov@...e.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: Re: [lkp-robot] [Btrfs] 28785f70ef: xfstests.generic.273.fail

FYI: This issues is tracked in the regression reports for Linux 4.13
(http://bit.ly/lnxregrep413 ) with this id:

Linux-Regression-ID: lr#a7d273

Please include this line in the comment section of patches that are
supposed to fix the issue. Please also mention the string once in other
mailinglist threads or different bug tracking entries if you or someone
else start to discuss the issue there. By including that string you make
it a whole lot easier to track where an issue gets discussed and how far
patches to fix it have made it. For more details on this pls see here:
http://bit.ly/lnxregtrackid

Thx for your help. Ciao, Thorsten

On 26.07.2017 08:23, kernel test robot wrote:
> 
> FYI, we noticed the following commit:
> 
> commit: 28785f70ef882e4798cd5706066a55dbf7adf80e ("Btrfs: skip commit transaction if we don't have enough pinned bytes")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> 
> in testcase: xfstests
> with following parameters:
> 
> 	disk: 4HDD
> 	fs: btrfs
> 	test: generic-mid2
> 
> 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 qemu64,+ssse3 -smp 4 -m 4G
> 
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> 
> 
> 
> 
> 2017-07-24 15:05:23 export TEST_DIR=/fs/vda
> 2017-07-24 15:05:23 export TEST_DEV=/dev/vda
> 2017-07-24 15:05:23 export FSTYP=btrfs
> 2017-07-24 15:05:23 export SCRATCH_MNT=/fs/scratch
> 2017-07-24 15:05:23 mkdir /fs/scratch -p
> 2017-07-24 15:05:23 export SCRATCH_DEV_POOL="/dev/vdb /dev/vdc /dev/vdd"
> 2017-07-24 15:05:23 ./check generic/224 generic/225 generic/226 generic/230 generic/232 generic/233 generic/269 generic/270 generic/273 generic/274 generic/275 generic/310 generic/324
> FSTYP         -- btrfs
> PLATFORM      -- Linux/x86_64 vm-kbuild-4G-4 4.12.0-rc6-00032-g28785f7
> MKFS_OPTIONS  -- /dev/vdb
> MOUNT_OPTIONS -- /dev/vdb /fs/scratch
> 
> generic/224	 30s
> generic/225	 17s
> generic/226	 22s
> generic/230	 [not run] disk quotas not supported by this filesystem type: btrfs
> generic/232	 [not run] disk quotas not supported by this filesystem type: btrfs
> generic/233	 [not run] disk quotas not supported by this filesystem type: btrfs
> generic/269	 51s
> generic/270	 [not run] disk quotas not supported by this filesystem type: btrfs
> generic/273	 - output mismatch (see /lkp/benchmarks/xfstests/results//generic/273.out.bad)
>     --- tests/generic/273.out	2017-06-30 11:04:30.000000000 +0800
>     +++ /lkp/benchmarks/xfstests/results//generic/273.out.bad	2017-07-24 15:08:37.002792866 +0800
>     @@ -2,3 +2,198 @@
>      ------------------------------
>      start the workload
>      ------------------------------
>     +_porter 189 not complete
>     +_porter 6 not complete
>     +_porter 14 not complete
>     +_porter 23 not complete
>     ...
>     (Run 'diff -u tests/generic/273.out /lkp/benchmarks/xfstests/results//generic/273.out.bad'  to see the entire diff)
> generic/274	 265s
> generic/275	 19s
> generic/310	 68s
> generic/324	 20s
> Ran: generic/224 generic/225 generic/226 generic/269 generic/273 generic/274 generic/275 generic/310 generic/324
> Not run: generic/230 generic/232 generic/233 generic/270
> Failures: generic/273
> Failed 1 of 9 tests
> 
> 
> 
> 
> To reproduce:
> 
>         git clone https://github.com/01org/lkp-tests.git
>         cd lkp-tests
>         bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email
> 
> 
> 
> Thanks,
> Xiaolong
>