# $NetBSD: t_umountstress.sh,v 1.6 2025/04/19 02:07:43 rin Exp $

# $NetBSD: t_umountstress.sh,v 1.6 2025/04/19 02:07:43 rin Exp $
#
# Copyright (c) 2013 The NetBSD Foundation, Inc.
# All rights reserved.
#
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# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

TMPMP=umount-stress_mount
TMPIM=umount-stress.im

VND=vnd0
BVND=/dev/${VND}
CVND=/dev/r${VND}
MPART=a

atf_test_case fileop cleanup
fileop_head()
{
atf_set "descr" "Checks unmounting a filesystem doing file operations"
atf_set "require.user" "root"
}
fileop_body()
{
if [ $(uname -p) = vax ]; then
atf_skip "port-vax/59287 vnd(4) can cause kernel crash"
fi

cat >disktab <<EOF
floppy288|2.88MB 3.5in Extra High Density Floppy:\
:ty=floppy:se#512:nt#2:rm#300:ns#36:nc#80:\
:pa#5760:oa#0:ba#4096:fa#512:ta=4.2BSD:\
:pb#5760:ob#0:\
:pc#5760:oc#0:
EOF

echo "*** Creating a dummy directory tree at" \
"${TMPMP} mounted on ${TMPIM}"

atf_check -o ignore -e ignore mkdir ${TMPMP}
atf_check -o ignore -e ignore dd if=/dev/zero of=${TMPIM} count=5860
atf_check -o ignore -e ignore vnconfig -v ${VND} ${TMPIM}
atf_check -o ignore -e ignore disklabel -f disktab -rw ${VND} floppy288
atf_check -o ignore -e ignore newfs -i 500 -b 8192 -f 1024 ${CVND}${MPART}
atf_check -o ignore -e ignore mount -o async ${BVND}${MPART} ${TMPMP}

echo "*** Testing fileops"

touch ${TMPMP}/hold
exec 9< ${TMPMP}/hold

(
for j in 0 1 2; do
for k in 0 1 2 3 4 5 6 7 8 9; do
if ! dd msgfmt=quiet if=/dev/zero \
count=1 of=${TMPMP}/test$i$j$k; then
echo 1 >result
exit
fi
done
done
echo 0 >result
) &
busypid=$!

while ! test -f result; do
if err=$(umount ${TMPMP} 2>&1); then
kill $busypid
exec 9<&-
wait
atf_fail "Unmount succeeded while busy"
return
fi

case $err in
*:\ Device\ busy)
;;
*)
kill $busypid
exec 9<&-
wait
atf_fail "Unmount failed: $err"
return
;;
esac
done

exec 9<&-
wait

rc=`cat result`
rm -f result

case $rc in
0) ;;
*) atf_fail "File operation failed"
esac
}
fileop_cleanup()
{
echo "*** Cleaning up ${TMPMP}, ${TMPIM}."
umount -f "${TMPMP}"
vnconfig -u "${VND}"
}

atf_test_case mountlist cleanup
mountlist_head()
{
atf_set "descr" "Checks unmounting a filesystem using mountlist"
atf_set "require.user" "root"
}
mountlist_body()
{
if [ $(uname -p) = vax ]; then
atf_skip "port-vax/59287 vnd(4) can cause kernel crash"
fi

cat >disktab <<EOF
floppy288|2.88MB 3.5in Extra High Density Floppy:\
:ty=floppy:se#512:nt#2:rm#300:ns#36:nc#80:\
:pa#5760:oa#0:ba#4096:fa#512:ta=4.2BSD:\
:pb#5760:ob#0:\
:pc#5760:oc#0:
EOF

echo "*** Creating a dummy directory tree at" \
"${TMPMP} mounted on ${TMPIM}"

atf_check -o ignore -e ignore mkdir ${TMPMP}
atf_check -o ignore -e ignore dd if=/dev/zero of=${TMPIM} count=5860
atf_check -o ignore -e ignore vnconfig -v ${VND} ${TMPIM}
atf_check -o ignore -e ignore disklabel -f disktab -rw ${VND} floppy288
atf_check -o ignore -e ignore newfs -i 500 -b 8192 -f 1024 ${CVND}${MPART}
atf_check -o ignore -e ignore mount -o async ${BVND}${MPART} ${TMPMP}

echo "*** Testing mountlist"

(
for j in 0 1 2 3 4 5 6 7 8 9; do
for k in 0 1 2 3 4 5 6 7 8 9; do
if ! out=$(mount); then
echo 1 >result
exit
fi
done
done
echo 0 >result
) &
busypid=$!

while ! test -f result; do
if err=$(umount ${TMPMP} 2>&1); then
if ! mount -o async ${BVND}${MPART} ${TMPMP}; then
kill $busypid
exec 9<&-
wait
atf_fail "Remount failed"
return
fi
continue
fi

case $err in
*:\ Device\ busy)
;;
*)
kill $busypid
exec 9<&-
wait
atf_fail "Unmount failed: $err"
return
;;
esac
done

exec 9<&-
wait

rc=`cat result`
rm -f result

case $rc in
0) ;;
*) atf_fail "Mountlist operation failed"
esac
}
mountlist_cleanup()
{
echo "*** Cleaning up ${TMPMP}, ${TMPIM}."
umount -f "${TMPMP}"
vnconfig -u "${VND}"
}

atf_init_test_cases()
{
atf_add_test_case fileop
atf_add_test_case mountlist
}