| #! /bin/bash |
| # FS QA Test 411 |
| # |
| # This test cover linux commit 7ae8fd0, kernel two mnt_group_id == 0 |
| # (no peer)vfsmount as peers. It case kernel dereference a NULL |
| # address. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016 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" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -f $tmp.* |
| _clear_mount_stack |
| # make sure there's no bug cause dentry isn't be freed |
| rm -rf $MNTHEAD |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| _require_test |
| _require_scratch |
| _require_local_device $SCRATCH_DEV |
| |
| fs_stress() |
| { |
| local target=$1 |
| |
| $FSSTRESS_PROG -z -n 500 -p 5 \ |
| -f creat=5 \ |
| -f mkdir=5 \ |
| -f dwrite=1 \ |
| -f dread=1 \ |
| -f link=2 \ |
| -f rename=1 \ |
| -f rmdir=2 \ |
| -f unlink=1 \ |
| -f symlink=1 \ |
| -f write=1 \ |
| -f read=1 \ |
| -f chown=1 \ |
| -f getdents=1 \ |
| -f fiemap=1 \ |
| -d $target >/dev/null |
| sync |
| } |
| |
| # prepare some mountpoint dir |
| MNTHEAD=$TEST_DIR/$seq |
| rm -rf $MNTHEAD |
| mkdir $MNTHEAD 2>>$seqres.full |
| mpA=$MNTHEAD/"$$"_mpA |
| mpB=$MNTHEAD/"$$"_mpB |
| mpC=$MNTHEAD/"$$"_mpC |
| |
| find_mnt() |
| { |
| echo "------" |
| findmnt -n -o TARGET,SOURCE $SCRATCH_DEV | \ |
| sed -e "s;$mpA;mpA;g" \ |
| -e "s;$mpB;mpB;g" \ |
| -e "s;$mpC;mpC;g" | \ |
| _filter_spaces | _filter_testdir_and_scratch | sort |
| echo "======" |
| } |
| |
| start_test() |
| { |
| local type=$1 |
| |
| _scratch_mkfs >$seqres.full 2>&1 |
| _get_mount -t $FSTYP $SCRATCH_DEV $MNTHEAD |
| $MOUNT_PROG --make-"${type}" $MNTHEAD |
| mkdir $mpA $mpB $mpC |
| } |
| |
| end_test() |
| { |
| _clear_mount_stack |
| rm -rf $mpA $mpB $mpC |
| } |
| |
| # |
| # shared New FS shared |
| # -----------------------[A/mnt1]---------------------- |
| # | | | |
| # | bind | bind | New FS |
| # [C/mnt1]--[slave C]<------[shared A]------>[slave B]--[B/mnt1]--[B/mnt1/mnt2] |
| # |
| crash_test() |
| { |
| start_test shared |
| |
| _get_mount -t $FSTYP $SCRATCH_DEV $mpA |
| mkdir $mpA/mnt1 |
| $MOUNT_PROG --make-shared $mpA |
| _get_mount --bind $mpA $mpB |
| _get_mount --bind $mpA $mpC |
| $MOUNT_PROG --make-slave $mpB |
| $MOUNT_PROG --make-slave $mpC |
| _get_mount -t $FSTYP $SCRATCH_DEV $mpA/mnt1 |
| mkdir $mpA/mnt1/mnt2 |
| |
| _get_mount -t $FSTYP $SCRATCH_DEV $mpB/mnt1/mnt2 |
| find_mnt |
| fs_stress $mpB/mnt1/mnt2 |
| |
| end_test |
| echo "crash test passed" |
| } |
| |
| crash_test |
| |
| # success, all done |
| status=0 |
| exit |