linux-kernel - [lkp] [percpu] e1bd8275fa: xfstests.generic.323.fail

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Date:	Mon, 15 Aug 2016 12:34:41 +0800
From:	kernel test robot <xiaolong.ye@...el.com>
To:	Roman Pen <roman.penyaev@...fitbricks.com>
Cc:	Roman Pen <roman.penyaev@...fitbricks.com>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	lkp@...org
Subject: [lkp] [percpu]  e1bd8275fa: xfstests.generic.323.fail


FYI, we noticed the following commit:

https://github.com/0day-ci/linux Roman-Pen/percpu-refcount-do-not-forget-to-rcu_barrier-just-before-freeing/20160806-014629
commit e1bd8275fa52f5fc8dd470bb629bb17f70f5bae1 ("percpu-refcount: do not forget to rcu_barrier() just before freeing")

in testcase: xfstests
with following parameters:

	disk: 4HDD
	fs: btrfs
	test: generic-slow3


on test machine: 4 threads Sandy Bridge with 6G memory

caused below changes:




2016-08-13 14:00:52 export TEST_DIR=/fs/sda5
2016-08-13 14:00:52 export TEST_DEV=/dev/sda5
2016-08-13 14:00:52 export FSTYP=btrfs
2016-08-13 14:00:52 export SCRATCH_MNT=/fs/scratch
2016-08-13 14:00:52 mkdir /fs/scratch -p
2016-08-13 14:00:52 export SCRATCH_DEV_POOL="/dev/sda6 /dev/sda7 /dev/sda8"
2016-08-13 14:00:52 ./check generic/256 generic/311 generic/323
FSTYP         -- btrfs
PLATFORM      -- Linux/x86_64 snb-drag 4.7.0-11544-ge1bd827
MKFS_OPTIONS  -- /dev/sda6
MOUNT_OPTIONS -- /dev/sda6 /fs/scratch

generic/256	 145s
generic/311	 98s
generic/323	 121s
_check_btrfs_filesystem: filesystem on /dev/sda5 is inconsistent (see /lkp/benchmarks/xfstests/results//generic/323.full)
Ran: generic/256 generic/311 generic/323
Failures: generic/323
Failed 1 of 3 tests





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,
Xiaolong

View attachment "config-4.7.0-11544-ge1bd827" of type "text/plain" (152291 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (20104 bytes)

View attachment "job.yaml" of type "text/plain" (3928 bytes)

View attachment "reproduce" of type "text/plain" (886 bytes)