[PATCH v4 6/8] fstests: regression test for ext4 crash consistency bug
From: Amir Goldstein <amir73il@gmail.com>
Date: 2017-09-07 10:02:57
Also in:
linux-fsdevel
Subsystem:
the rest · Maintainer:
Linus Torvalds
This test is motivated by this inconsistency found in ext4 during random
crash consistency tests:
*** fsck.ext4 output ***
fsck from util-linux 2.27.1
e2fsck 1.42.13 (17-May-2015)
Pass 1: Checking inodes, blocks, and sizes
Inode 12, end of extent exceeds allowed value
(logical block 33, physical block 33817, len 7)
Clear? no
Inode 12, i_blocks is 240, should be 184. Fix? no
This test uses device mapper flakey target to demonstrate the bug
found using device mapper log-writes target.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
fix 501
---
tests/generic/501 | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/501.out | 2 ++
tests/generic/group | 1 +
3 files changed, 83 insertions(+)
create mode 100755 tests/generic/501
create mode 100644 tests/generic/501.out
diff --git a/tests/generic/501 b/tests/generic/501
new file mode 100755
index 0000000..d0ac49d
--- /dev/null
+++ b/tests/generic/501@@ -0,0 +1,80 @@ +#! /bin/bash +# FS QA Test No. 501 +# +# This test is motivated by a bug found in ext4 during random crash +# consistency tests. +# +#----------------------------------------------------------------------- +# Copyright (C) 2017 CTERA Networks. All Rights Reserved. +# Author: Amir Goldstein <amir73il@gmail.com> +# +# 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! + +_cleanup() +{ + _cleanup_flakey + cd / + rm -f $tmp.* +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/dmflakey + +# real QA test starts here +_supported_fs generic +_supported_os Linux +_require_scratch +_require_dm_target flakey + +rm -f $seqres.full + +_scratch_mkfs >> $seqres.full 2>&1 +_require_metadata_journaling $SCRATCH_DEV + +_init_flakey +_mount_flakey + +fsxops=$tmp.fsxops +cat <<EOF > $fsxops +write 0x137dd 0xdc69 0x0 +fallocate 0xb531 0xb5ad 0x21446 +collapse_range 0x1c000 0x4000 0x21446 +write 0x3e5ec 0x1a14 0x21446 +zero_range 0x20fac 0x6d9c 0x40000 keep_size +mapwrite 0x216ad 0x274f 0x40000 +EOF +run_check $here/ltp/fsx -d --replay-ops $fsxops $SCRATCH_MNT/testfile + +_flakey_drop_and_remount +_unmount_flakey +_cleanup_flakey +_check_scratch_fs + +echo "Silence is golden" + +status=0 +exit
diff --git a/tests/generic/501.out b/tests/generic/501.out
new file mode 100644
index 0000000..00133b6
--- /dev/null
+++ b/tests/generic/501.out@@ -0,0 +1,2 @@ +QA output created by 501 +Silence is golden
diff --git a/tests/generic/group b/tests/generic/group
index c857153..1e1b524 100644
--- a/tests/generic/group
+++ b/tests/generic/group@@ -458,3 +458,4 @@ 453 auto quick dir 454 auto quick attr 500 auto log replay +501 auto quick metadata
--
2.7.4