XFS had a regression where inode reclaim in the unlink codepath would not correctly tear down extended attribute forks where no xattr extents are present. Add a generic test to create this condition. The test sets extended attributes on a series of files under ENOSPC conditions and then verifies that the files can be removed without syslog warnings or errors. Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx> --- v2: - Add fallocate requirement. - Update _check_dmesg() to detect resulting XFS "Internal error." v1: http://thread.gmane.org/gmane.comp.file-systems.fstests/885 check | 1 + tests/generic/103 | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/103.out | 2 ++ tests/generic/group | 1 + 4 files changed, 96 insertions(+) create mode 100755 tests/generic/103 create mode 100644 tests/generic/103.out diff --git a/check b/check index a300130..675005c 100755 --- a/check +++ b/check @@ -412,6 +412,7 @@ _check_dmesg() -e "BUG:" \ -e "Oops:" \ -e "possible recursive locking detected" \ + -e "Internal error" \ $seqres.dmesg if [ $? -eq 0 ]; then echo "_check_dmesg: something found in dmesg (see $seqres.dmesg)" diff --git a/tests/generic/103 b/tests/generic/103 new file mode 100755 index 0000000..3884e3e --- /dev/null +++ b/tests/generic/103 @@ -0,0 +1,92 @@ +#! /bin/bash +# FSQA Test No. 103 +# +# Test attribute fork teardown. This test is inspired by a regression in XFS +# that resulted in problematic removal of inodes with remote attribute forks +# without attribute extents. The attribute fork condition is created by +# attempting to set larger attribute values on a filesystem that is at or near +# ENOSPC. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Red Hat, Inc. 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" + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 25 + +# get standard environment, filters and checks +. ./common/rc +. ./common/attr + +# real QA test starts here +_supported_fs generic +_supported_os Linux +_require_scratch +_require_attrs +_require_xfs_io_command "falloc" + +rm -f $seqres.full + +_consume_freesp() +{ + file=$1 + + # consume nearly all available space (leave ~512kB) + avail=`_get_available_space $SCRATCH_MNT` + filesizekb=$((avail / 1024 - 512)) + $XFS_IO_PROG -fc "falloc 0 ${filesizekb}k" $file +} + +_scratch_mkfs >> $seqres.full 2>&1 +_scratch_mount + +for i in $(seq 0 63); do + touch $SCRATCH_MNT/$seq.$i +done + +# Generate a large attribute value and consume the rest of the space in the +# filesystem. +$XFS_IO_PROG -fc "pwrite 0 64k" $SCRATCH_MNT/attrval > /dev/null 2>&1 +_consume_freesp $SCRATCH_MNT/spc + +# Set attributes on the test files. These should start to hit ENOSPC. +for i in $(seq 0 63); do + $SETFATTR_PROG -n user.test -v "`cat $SCRATCH_MNT/attrval`" \ + $SCRATCH_MNT/$seq.$i >> $seqres.full 2>&1 +done + +# Remove the files with attributes to test attribute fork teardown. Problems +# result in dmesg output. +rm -f $SCRATCH_MNT/$seq.* + +echo Silence is golden. + +status=0 +exit diff --git a/tests/generic/103.out b/tests/generic/103.out new file mode 100644 index 0000000..ce229bf --- /dev/null +++ b/tests/generic/103.out @@ -0,0 +1,2 @@ +QA output created by 103 +Silence is golden. diff --git a/tests/generic/group b/tests/generic/group index 0c8964c..41f3039 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -98,6 +98,7 @@ 097 udf auto 099 udf auto 100 udf auto +103 auto enospc quick 105 acl auto quick 112 rw aio auto quick 113 rw aio auto quick -- 1.9.3 -- 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
