From: xiao yang Date: Fri, 19 Jan 2018 05:38:06 +0000 (+0800) Subject: xfs: Regression test for invalid sb_logsunit X-Git-Tag: v2022.05.01~1692 X-Git-Url: http://git.apps.os.sepia.ceph.com/?p=xfstests-dev.git;a=commitdiff_plain;h=5acc29ad70488411d35b22e1c96552e92a7e628e xfs: Regression test for invalid sb_logsunit If log stripe unit isn't a multiple of the fs blocksize and mounting, the invalid sb_logsunit leads to crash as soon as we try to write to the log. Signed-off-by: xiao yang Reviewed-by: Eryu Guan Signed-off-by: Eryu Guan --- diff --git a/tests/xfs/439 b/tests/xfs/439 new file mode 100755 index 00000000..7be700cd --- /dev/null +++ b/tests/xfs/439 @@ -0,0 +1,85 @@ +#! /bin/bash +# FS QA Test No. 439 +# +# Regression test for commit: +# 9c92ee2 ("xfs: validate sb_logsunit is a multiple of the fs blocksize") +# +# If log stripe unit isn't a multiple of the fs blocksize and mounting, +# the invalid sb_logsunit leads to crash as soon as we try to write to +# the log. +# +#----------------------------------------------------------------------- +# Copyright (c) 2018 FUJITSU. All Rights Reserved. +# Author: Xiao Yang +# +# 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() +{ + rm -rf $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch +# We corrupt XFS on purpose, and check if assert failures would crash system. +_require_no_xfs_bug_on_assert + +rm -f "$seqres.full" + +# Format +_scratch_mkfs > $seqres.full 2>&1 || _fail "mkfs failed" + +# Set logsunit to a value which is not a multiple of the fs blocksize +blksz=$(_scratch_xfs_get_sb_field blocksize) +_scratch_xfs_set_sb_field logsunit $((blksz - 1)) >> $seqres.full 2>&1 + +# Check if logsunit is set correctly +lsunit=$(_scratch_xfs_get_sb_field logsunit) +[ $lsunit -ne $((blksz - 1)) ] && _notrun "failed to set sb_logsunit" + +# Mount and writing log may trigger a crash on buggy kernel +# The fix applied kernel refuses to mount, so a mount failure is +# expected +if _scratch_mount >> $seqres.full 2>&1; then + for i in $(seq 1 1000); do + echo > ${SCRATCH_MNT}/$i + done + _scratch_unmount +fi + +# We may trigger assert related WARNINGs if we corrupt log on a CONFIG_XFS_WARN +# or CONFIG_XFS_DEBUG (when bug_on_assert is disabled) build, so filter them. +_check_dmesg _filter_assert_dmesg + +echo "Silence is golden" + +# success, all done +status=0 +exit diff --git a/tests/xfs/439.out b/tests/xfs/439.out new file mode 100644 index 00000000..9712295a --- /dev/null +++ b/tests/xfs/439.out @@ -0,0 +1,2 @@ +QA output created by 439 +Silence is golden diff --git a/tests/xfs/group b/tests/xfs/group index 04a63b7c..cf81451d 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -436,3 +436,4 @@ 436 auto quick clone fsr 437 auto quick other 438 auto quick quota dangerous +439 auto quick fuzzers log