From f7922730727844c6dee837bd1a64221342fef1d1 Mon Sep 17 00:00:00 2001 From: Eryu Guan Date: Mon, 1 Apr 2013 10:57:43 +0000 Subject: [PATCH] xfstests ext4 305: test read /proc/fs/ext4//mb_groups while the fs is being unmounted Regression test for commit: 9559996 ext4: remove mb_groups before tearing down the buddy_cache Signed-off-by: Eryu Guan Reviewed-by: Rich Johnston [rjohnston@sgi.com renumbered test to next in group sequence] Signed-off-by: Rich Johnston --- tests/ext4/305 | 74 ++++++++++++++++++++++++++++++++++++++++++++++ tests/ext4/305.out | 2 ++ tests/ext4/group | 2 +- 3 files changed, 77 insertions(+), 1 deletion(-) create mode 100644 tests/ext4/305 create mode 100644 tests/ext4/305.out diff --git a/tests/ext4/305 b/tests/ext4/305 new file mode 100644 index 00000000..bf9d9cd7 --- /dev/null +++ b/tests/ext4/305 @@ -0,0 +1,74 @@ +#! /bin/bash +# FS QA Test No. 305 +# +# Regression test for commit: +# 9559996 ext4: remove mb_groups before tearing down the buddy_cache +# +#----------------------------------------------------------------------- +# Copyright (c) 2013 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" + +PIDS="" +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + kill $PIDS >/dev/null 2>&1 +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs ext4 +_supported_os Linux + +_require_scratch + +rm -f $seq.full +echo "Silence is golden" + +DEV_BASENAME=$(basename $(readlink -f $SCRATCH_DEV)) +echo "Start test on device $SCRATCH_DEV, basename $DEV_BASENAME" >$seq.full +_scratch_mkfs >>$seq.full 2>&1 + +while true;do + mount $SCRATCH_DEV $SCRATCH_MNT + umount $SCRATCH_DEV +done & +PIDS=$! + +while true;do + cat /proc/fs/ext4/$DEV_BASENAME/mb_groups > /dev/null 2>&1 +done & +PIDS="$PIDS $!" + +# sleep for 180s, in most cases a buggy kernel could hit BUG_ON within 3 minutes +sleep 180 + +# no BUG_ON, all done +kill $PIDS >/dev/null 2>&1 +wait +status=0 +exit diff --git a/tests/ext4/305.out b/tests/ext4/305.out new file mode 100644 index 00000000..ff0c244c --- /dev/null +++ b/tests/ext4/305.out @@ -0,0 +1,2 @@ +QA output created by 305 +Silence is golden diff --git a/tests/ext4/group b/tests/ext4/group index 6a44db30..53af7080 100644 --- a/tests/ext4/group +++ b/tests/ext4/group @@ -8,4 +8,4 @@ 302 aio dangerous ioctl rw stress 303 aio dangerous ioctl rw stress 304 aio dangerous ioctl rw stress - +305 auto -- 2.39.5