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author | Liu Bo <bo.li.liu@oracle.com> | 2017-01-25 14:13:57 -0800 |
---|---|---|
committer | Eryu Guan <eguan@redhat.com> | 2017-01-27 16:06:12 +0800 |
commit | 519fc392af58d48203454da7d50d7c0bb6242dfc (patch) | |
tree | 376a98d8f332c30f7f156fd12683040776a52a46 | |
parent | 06e8d3e000c83fe0a9e4120959144d8a811e889f (diff) | |
download | xfstests-dev-519fc392af58d48203454da7d50d7c0bb6242dfc.tar.gz |
generic: splitted large dio write could trigger assertion on btrfs
On btrfs, if a large dio write (>=128MB) got splitted, the
outstanding_extents assertion would complain. Note that
CONFIG_BTRFS_ASSERT is required.
Regression test for
Btrfs: adjust outstanding_extents counter properly when dio write is split
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
-rwxr-xr-x | tests/generic/406 | 74 | ||||
-rw-r--r-- | tests/generic/406.out | 2 | ||||
-rw-r--r-- | tests/generic/group | 1 |
3 files changed, 77 insertions, 0 deletions
diff --git a/tests/generic/406 b/tests/generic/406 new file mode 100755 index 0000000000..88ab0dad9b --- /dev/null +++ b/tests/generic/406 @@ -0,0 +1,74 @@ +#! /bin/bash +# FS QA Test generic/406 +# +# If a larger dio write (size >= 128M) got splitted, the assertion in endio +# would complain (CONFIG_BTRFS_ASSERT is required). +# +# Regression test for +# Btrfs: adjust outstanding_extents counter properly when dio write is split +# +#----------------------------------------------------------------------- +# Copyright (c) 2017 Liu Bo. All Rights Reserved. +# +# 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 + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_scratch +_require_odirect + +_scratch_mkfs >> $seqres.full 2>&1 +_scratch_mount + +# 2G / 1K +blocksize=$(( (128 + 1) * 2 * 1024 * 1024)) +fsblock=$(( (128 + 1) * 2 * 1024)) +_require_fs_space $SCRATCH_MNT $fsblock + +echo "Silence is golden" + +$XFS_IO_PROG -f -d -c "pwrite -b ${blocksize} 0 ${blocksize}" $SCRATCH_MNT/testfile.$seq >> $seqres.full 2>&1 + +_scratch_unmount + +# success, all done +status=0 +exit diff --git a/tests/generic/406.out b/tests/generic/406.out new file mode 100644 index 0000000000..eaf210de06 --- /dev/null +++ b/tests/generic/406.out @@ -0,0 +1,2 @@ +QA output created by 406 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index 5621906744..159d691b3b 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -408,3 +408,4 @@ 403 auto quick attr 404 auto quick insert 405 auto mkfs +406 auto quick dangerous |