ping.
Good to have this case..
Thanks,
Xiong
On Wed, Jun 24, 2015 at 07:05:25PM +0800, Eryu Guan wrote:
> From: Lukas Czerner <lczerner@xxxxxxxxxx>
>
> Exercise the situation that cause ext4 to BUG_ON() when we use
> zero range to zero a range which starts within the isize but ends
> past the isize but still in the same block. This particular problem
> has only been seen on systems with page_size > block_size.
>
> This tests exercises the problem fixed in kernel with commit
> 0f2af21aae11972fa924374ddcf52e88347cf5a8
> ext4: Allocate entire range in zero range
>
> Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
> Signed-off-by: Eryu Guan <eguan@xxxxxxxxxx>
> ---
>
> This patch got lost in previous fstests updates, I did minor updates and resent.
>
> v4:
> - Use scratch dev instead of test dev, it's easy and common to test page_size > block_size scenario on scratch device
> - Add "Silence is golden" to indicate test expects no output
> - Renumber to generic/094
>
> tests/generic/094 | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/generic/094.out | 2 ++
> tests/generic/group | 1 +
> 3 files changed, 67 insertions(+)
> create mode 100755 tests/generic/094
> create mode 100644 tests/generic/094.out
>
> diff --git a/tests/generic/094 b/tests/generic/094
> new file mode 100755
> index 0000000..602e5b6
> --- /dev/null
> +++ b/tests/generic/094
> @@ -0,0 +1,64 @@
> +#! /bin/bash
> +# FS QA Test 094
> +#
> +# Exercise the situation that cause ext4 to BUG_ON() when we use
> +# zero range to zero a range which starts within the isize but ends
> +# past the isize but still in the same block. This particular problem
> +# has only been seen on systems with page_size > block_size.
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2015 Red Hat, Inc., Lukas Czerner <lczerner@xxxxxxxxxx>
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#-----------------------------------------------------------------------
> +#
> +
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# real QA test starts here
> +_supported_fs generic
> +_supported_os IRIX Linux
> +_require_scratch
> +_require_xfs_io_command "fzero"
> +
> +rm -f $seqres.full
> +echo "Silence is golden"
> +
> +# Use smaller scratch fs to shorten the test time
> +_scratch_mkfs_sized $((512 * 1024 * 1024)) >>$seqres.full 2>&1
> +_scratch_mount
> +
> +testfile=$SCRATCH_MNT/$seq.$$
> +$XFS_IO_PROG -f -c "pwrite 4096 512" -c "fzero 4351 512" $testfile >> $seqres.full 2>&1
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/generic/094.out b/tests/generic/094.out
> new file mode 100644
> index 0000000..bcdcf29
> --- /dev/null
> +++ b/tests/generic/094.out
> @@ -0,0 +1,2 @@
> +QA output created by 094
> +Silence is golden
> diff --git a/tests/generic/group b/tests/generic/group
> index ca15a3f..fcca238 100644
> --- a/tests/generic/group
> +++ b/tests/generic/group
> @@ -96,6 +96,7 @@
> 091 rw auto quick
> 092 auto quick prealloc
> 093 attr cap udf auto
> +094 auto prealloc quick
> 097 udf auto
> 099 udf auto
> 100 udf auto
> --
> 2.4.3
>
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