linux-kernel - RE: [lkp] [f2fs] 75cd4e098d: xfstests.generic.042.fail

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Message-id: <012001d143b4$6eca21d0$4c5e6570$@samsung.com>
Date:	Thu, 31 Dec 2015 18:16:37 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	'kernel test robot' <ying.huang@...ux.intel.com>
Cc:	lkp@...org, 'LKML' <linux-kernel@...r.kernel.org>,
	'Jaegeuk Kim' <jaegeuk@...nel.org>
Subject: RE: [lkp] [f2fs] 75cd4e098d: xfstests.generic.042.fail

Hi Ying,

> -----Original Message-----
> From: kernel test robot [mailto:ying.huang@...ux.intel.com]
> Sent: Monday, December 28, 2015 9:40 AM
> To: Chao Yu
> Cc: lkp@...org; LKML; Jaegeuk Kim
> Subject: [lkp] [f2fs] 75cd4e098d: xfstests.generic.042.fail
> 
> FYI, we noticed the below changes on
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> commit 75cd4e098d178433436abce08146a21647bb4585 ("f2fs: support FALLOC_FL_ZERO_RANGE")
> 
> We found after your commit, the xfstests test case 009/042 failed.

Thank you for the report, 042 is a known issue, IIRC, the reason is f2fs
will flush inode page with last i_size in ioctl(F2FS_IOC_SHUTDOWN, 0x01),
but 042 expects an zero-sized inode. So I supposed it happened due to the
different semantics of metadata flushing between f2fs and xfs.

For 009, I haven't saw it failed for long time, did you test with last f2fs?

Thanks,

> 
> =========================================================================================
> compiler/disk/fs/kconfig/rootfs/tbox_group/test/testcase:
> 
> gcc-4.9/4HDD/f2fs/x86_64-rhel/debian-x86_64-2015-02-07.cgz/vm-kbuild-4G/generic-quick/xfst
> ests
> 
> commit:
>   b4ace33703243fed56f8bfc80a001533acb9decb
>   75cd4e098d178433436abce08146a21647bb4585
> 
> b4ace33703243fed 75cd4e098d178433436abce081
> ---------------- --------------------------
>        fail:runs  %reproduction    fail:runs
>            |             |             |
>            :18          94%          17:18    xfstests.generic.009.fail
>            :18          94%          17:18    xfstests.generic.042.fail
> 
> 
> To reproduce:
> 
>         git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
>         cd lkp-tests
>         bin/lkp install job.yaml  # job file is attached in this email
>         bin/lkp run     job.yaml
> 
> 
> 
> Thanks,
> Ying Huang

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