generic/326 is a case about testing whether writing failed on NO_SPACE in a busy loop of write and delete when disk almost full. It is a long-term problem since very beginning in btrfs, and has been fixed by patchset titled "btrfs: Fix no_space on dd and rm loop" from zhaolei@xxxxxxxxxxxxxx. Signed-off-by: Wang Yanfeng <wangyf-fnst@xxxxxxxxxxxxxx> --- tests/generic/326 | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/326.out | 2 ++ tests/generic/group | 1 + 3 files changed, 76 insertions(+) create mode 100755 tests/generic/326 create mode 100644 tests/generic/326.out diff --git a/tests/generic/326 b/tests/generic/326 new file mode 100755 index 0000000..1ab1ac3 --- /dev/null +++ b/tests/generic/326 @@ -0,0 +1,73 @@ +#! /bin/bash +# FS QA Test No. 326 +# +# TEST busy loop of write and delete in a filesystem. +# Sometimes writes will failed on NO_SPACE when disk almost full +# in btrfs. It is long-term problem since very beginning for btrfs +# +# This issue was fixed by the following linux kernel patch +# +# btrfs: Fix no_space on dd and rm loop < from zhaolei@xxxxxxxxxxxxxx > +# btrfs: Fix NO_SPACE bug caused by delayed-iput +# btrfs: Support busy loop of write and delete +# btrfs: add WARN_ON() to check is space_info op current +# btrfs: Set relative data on clear btrfs_block_group_cache->pinned +# btrfs: Adjust commit-transaction condition to avoid NO_SPACE more +# btrfs: Fix tail space processing in find_free_dev_extent() +# btrfs: fix condition of commit transaction +# btrfs: wait for delayed iputs on no space +#----------------------------------------------------------------------- +# Copyright (c) 2015 Fujitsu. All Rights Reserved. +# Author: Wang Yanfeng <wangyf-fnst@xxxxxxxxxxxxxx> +# +# 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" + +status=1 +trap "exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_need_to_be_root +_supported_fs generic +_supported_os Linux +_require_scratch + +rm -f $seqres.full + +dev_size=$((512 * 1024 * 1024)) +_scratch_mkfs_sized $dev_size >>$seqres.full 2>&1 +_scratch_mount +file_size_m=$(($dev_size * 75 / 100 / 1024 / 1024)) + +for ((i = 0; i < 10; i++)); do + echo "loop $i" >>$seqres.full + + dd if=/dev/zero of="$SCRATCH_MNT"/file0 bs=1M count="$file_size_m" \ + >>$seqres.full 2>&1 || _fail "dd failed" + + rm -f "$SCRATCH_MNT"/file0 || _fail "rm failed" +done + +echo "Silence is golden" +status=0 +exit diff --git a/tests/generic/326.out b/tests/generic/326.out new file mode 100644 index 0000000..4ac0db5 --- /dev/null +++ b/tests/generic/326.out @@ -0,0 +1,2 @@ +QA output created by 326 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index 0c8964c..393a2cb 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -194,3 +194,4 @@ 323 auto aio stress 324 auto fsr quick 325 auto quick data log +326 auto -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
