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Sat, 25 Jun 2022 06:22:32 GMT (envelope-from git) Date: Sat, 25 Jun 2022 06:22:32 GMT Message-Id: <202206250622.25P6MW8Z069541@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Peter Holm Subject: git: 25a1b1f30c85 - main - stress2: Added reagression tests PR: 165392 List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: pho X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 25a1b1f30c85670b6d970df426b97c07d4e0e61d Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1656138152; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=bVtdaMKWmJy8Uw+UBUrit2bL8io0fNRbTi6hMDj+r5Y=; b=eKR8ju2EB/C30i8PE0mPSsmxfp7WKggZZx7/jgnVF38YZKBms5e/dw9BXvyg1OxwmVkM6S A96/OEkE4t26ei2fAtfCiZNYKa9GDtj8torun+TYbDE0a7w3S4ZttBXbvC1F31OGM7NJhv dRpx2+w6rRWREwDt9ZFImPP/hDD0JaUXooUxGsnTIsE90IFZrsPgOqtie2N+292ukGLvSu nKNeREaXq8xX0RdKWCqX4SacjGKL3BEyDb/ePiGzqcWsGcT/fb0LgeC0xgdziYkMoeVwB0 3+1U06XKjunVyrnxQ0IAAEou2D6R9p9fNnkRpeFspZJQImuP9J8ixWB9hjo4gQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1656138152; a=rsa-sha256; cv=none; b=VCA/3LV08lRPSB1AcxBraT+1v+bBqTDRNcbRyqiXp0l5ow8CyXF3Ly/j2SR3KHG33S2FJE im/CLx0ojtdkQJA24YKNYtXockI64kxBdEjNQYVSQYdHk/42O+Z12KtaLSxc9mz1PaQccE OGZU+gcf0c9OUbOXGwWnvGvq/7QB5fJbMz2KTrq6nOwZ4cpUxuRL2lpBvOB4LD6NCJZz9n +pkKNlDsajgPGBg6o6CUfmLogKYTxww6MdmFbxv2TRVi5aPDXRhMDEpy3jRyiVEwx30d5/ cr5tgbdwE2w71ouFg9ta9IjS32oAN94E8M0XS/Fbm4nu1VOSrQ4IpDz0gTacCQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by pho: URL: https://cgit.FreeBSD.org/src/commit/?id=25a1b1f30c85670b6d970df426b97c07d4e0e61d commit 25a1b1f30c85670b6d970df426b97c07d4e0e61d Author: Peter Holm AuthorDate: 2022-06-25 06:21:30 +0000 Commit: Peter Holm CommitDate: 2022-06-25 06:21:30 +0000 stress2: Added reagression tests PR: 165392 --- tools/test/stress2/misc/nlink.sh | 96 ++++++++++++++++++++++++++++++ tools/test/stress2/misc/nlink2.sh | 71 ++++++++++++++++++++++ tools/test/stress2/misc/nlink3.sh | 106 +++++++++++++++++++++++++++++++++ tools/test/stress2/misc/nlink4.sh | 105 +++++++++++++++++++++++++++++++++ tools/test/stress2/misc/nlink5.sh | 120 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 498 insertions(+) diff --git a/tools/test/stress2/misc/nlink.sh b/tools/test/stress2/misc/nlink.sh new file mode 100755 index 000000000000..1d3bde8c7d42 --- /dev/null +++ b/tools/test/stress2/misc/nlink.sh @@ -0,0 +1,96 @@ +#!/bin/sh +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2022 Peter Holm +# +# Redistribution and use in source and binary forms, with or without +# 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 AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# Regression test for: +# D35514 UFS: make mkdir() reliable when using SU and reaching nlink limit +# Bug 165392 - [ufs] [patch] Multiple mkdir/rmdir fails with errno 31 + +. ../default.cfg + +cat > /tmp/nlink.c < +#include +#include +#include +#include +#include + +int +main (void) { + int i, mx; + char dir[100]; + + mx = UFS_LINK_MAX - 2; + for (i = 0; i < mx; i++) { + snprintf(dir, sizeof(dir), "%d", i); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + } + + /* The following mkdir(2) must fail */ + i = mx; + snprintf(dir, sizeof(dir), "%d", i); + if (mkdir(dir, 0700) != -1) /* this must fail */ + err(1, "mkdir(%s)", dir); + if (errno != EMLINK) + err(1, "Must fail: mkdir(%s)", dir); + + /* Must succeed */ + i = 0; + snprintf(dir, sizeof(dir), "%d", i); + if (rmdir(dir) == -1) + err(1, "rmdir(%s)", dir); + snprintf(dir, sizeof(dir), "%s", "a"); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + + return (0); +} +EOF +mycc -o /tmp/nlink -Wall -Wextra -O2 /tmp/nlink.c || exit 1 +rm /tmp/nlink.c + +set -e +here=`pwd` +mount | grep -q "on $mntpoint " && umount -f $mntpoint +mdconfig -l | grep "md$mdstart " && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +newfs -Un /dev/md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +set +e + +cd $mntpoint +/tmp/nlink; s=$? +n=`ls -a | wc -l` +[ $s -ne 0 ] && echo "$n dirs" +cd $here + +umount $mntpoint +mdconfig -d -u $mdstart +rm /tmp/nlink +exit $s diff --git a/tools/test/stress2/misc/nlink2.sh b/tools/test/stress2/misc/nlink2.sh new file mode 100755 index 000000000000..41cdaa676fc9 --- /dev/null +++ b/tools/test/stress2/misc/nlink2.sh @@ -0,0 +1,71 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2022 Peter Holm +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# Simple test to demonstrate EMLINK issue on a SU file system. + +# mkdir: /mnt10/a994: Too many links + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 +. ../default.cfg + +echo "$newfs_flags" | grep -q U || exit 0 +log=/tmp/nlink2.sh.log +md=$mdstart +mp=/mnt$md +mkdir -p $mp +set -e +mount | grep -q "on $mp " && umount -f $mp +mdconfig -l | grep -q md$md && mdconfig -d -u $md + +mdconfig -a -t swap -s 1g -u $md +newfs $newfs_flags -n md$md > /dev/null +mount /dev/md$md $mp +set +e + +start=`date +%s` +for i in `jot 1000`; do + jot 1000 | xargs -P0 -I% mkdir $mp/a% || { s=1; break; } + jot 1000 | xargs -P0 -I% rmdir $mp/a% + t=$((`date +%s` - start)) + if [ $t -ge 300 ]; then + echo "Warn: Timed out in loop #$i after $t seconds" + break + fi +done +if [ $s ]; then + echo "Failed in loop #$i" + df -i $mp +fi + +umount $mp +fsck_ffs -fy /dev/md$md > $log 2>&1 +grep -Eq "WAS MODIFIED" $log && { s=$((s + 2)); cat $log; } +mdconfig -d -u $md +rm -f $log +exit $s diff --git a/tools/test/stress2/misc/nlink3.sh b/tools/test/stress2/misc/nlink3.sh new file mode 100755 index 000000000000..2484e8569928 --- /dev/null +++ b/tools/test/stress2/misc/nlink3.sh @@ -0,0 +1,106 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2022 Peter Holm +# +# Redistribution and use in source and binary forms, with or without +# 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 AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# https://reviews.freebsd.org/D35514 +# link() version + +. ../default.cfg + +cat > /tmp/nlink3.c < +#include +#include +#include +#include +#include +#include + +int +main (void) { + int fd, i, mx; + char file[100]; + + snprintf(file, sizeof(file), "f"); + if ((fd = open(file, O_RDWR | O_CREAT | O_TRUNC, + DEFFILEMODE)) == -1) + err(1, "creat(%s)", file); + close(fd); + + mx = UFS_LINK_MAX - 1; /* UFS_LINK_MAX = 32767 */ + for (i = 0; i < mx; i++) { + snprintf(file, sizeof(file), "%d", i); + if (link("f", file) == -1) + err(1, "link(%s, %s)", "f", file); + + } + + /* The following link(2) must fail */ + i = mx; + snprintf(file, sizeof(file), "%d", i); + if (link("f", file) != -1) + err(1, "link(%s, %s)", "f", file); + if (errno != EMLINK) + err(1, "Must fail: link(%s, %s)", "f", file); + + i = 0; + snprintf(file, sizeof(file), "%d", i); + if (unlink(file) == -1) + err(1, "unlink(%s)", file); + + /* Must succeed */ + i = mx; + snprintf(file, sizeof(file), "%d", i); + if (link("f", file) == -1) + err(1, "link(%s, %s)", "f", file); + + return (0); +} +EOF +mycc -o /tmp/nlink3 -Wall -Wextra -O2 /tmp/nlink3.c || exit 1 +rm /tmp/nlink3.c + +set -e +here=`pwd` +mount | grep -q "on $mntpoint " && umount -f $mntpoint +mdconfig -l | grep "md$mdstart " && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +newfs -Un /dev/md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +set +e + +cd $mntpoint +/tmp/nlink3; s=$? +n=`ls -a | wc -l` +[ $s -ne 0 ] && echo "$n files" +cd $here + +umount $mntpoint +mdconfig -d -u $mdstart +rm /tmp/nlink3 +exit $s diff --git a/tools/test/stress2/misc/nlink4.sh b/tools/test/stress2/misc/nlink4.sh new file mode 100755 index 000000000000..12412666b182 --- /dev/null +++ b/tools/test/stress2/misc/nlink4.sh @@ -0,0 +1,105 @@ +#!/bin/sh +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2022 Peter Holm +# +# Redistribution and use in source and binary forms, with or without +# 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 AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# https://reviews.freebsd.org/D35514 +# rename(2) version + +. ../default.cfg + +cat > /tmp/nlink4.c < +#include +#include +#include +#include +#include +#include + +int +main (void) { + int fd, i, mx; + char file[100]; + + snprintf(file, sizeof(file), "f"); + if ((fd = open(file, O_RDWR | O_CREAT | O_TRUNC, + DEFFILEMODE)) == -1) + err(1, "creat(%s)", file); + close(fd); + + mx = UFS_LINK_MAX - 1; /* UFS_LINK_MAX = 32767 */ + for (i = 0; i < mx; i++) { + snprintf(file, sizeof(file), "%d", i); + if (link("f", file) == -1) + err(1, "link(%s, %s)", "f", file); + + } + + /* The following link(2) must fail */ + i = mx; + snprintf(file, sizeof(file), "%d", i); + if (link("f", file) != -1) + err(1, "link(%s, %s)", "f", file); + if (errno != EMLINK) + err(1, "Must fail: link(%s, %s)", "f", file); + + /* Must succeed */ + i = 0; + snprintf(file, sizeof(file), "%d", i); + if (unlink(file) == -1) + err(1, "unlink(%s)", file); + if (rename("1", "a") == -1) { + if (errno == EMLINK) + fprintf(stderr, "Unexpected EMLINK\n"); + err(1, "rename(%s, %s)", "1", "a"); + } + + return (0); +} +EOF +mycc -o /tmp/nlink4 -Wall -Wextra -O2 /tmp/nlink4.c || exit 1 +rm /tmp/nlink4.c + +set -e +here=`pwd` +mount | grep -q "on $mntpoint " && umount -f $mntpoint +mdconfig -l | grep "md$mdstart " && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +newfs -Un /dev/md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +set +e + +cd $mntpoint +/tmp/nlink4; s=$? +n=`ls -a | wc -l` +[ $s -ne 0 ] && echo "$n files" +cd $here + +umount $mntpoint +mdconfig -d -u $mdstart +rm /tmp/nlink4 +exit $s diff --git a/tools/test/stress2/misc/nlink5.sh b/tools/test/stress2/misc/nlink5.sh new file mode 100755 index 000000000000..c90f43b35dd5 --- /dev/null +++ b/tools/test/stress2/misc/nlink5.sh @@ -0,0 +1,120 @@ +#!/bin/sh +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2022 Peter Holm +# +# Redistribution and use in source and binary forms, with or without +# 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 AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# https://reviews.freebsd.org/D35514 +# Rename dir a/b to c/d + +# Test scenario suggestion by kib + +. ../default.cfg + +cat > /tmp/nlink5.c < +#include +#include +#include +#include +#include + +int +main (void) { + int i, mx; + char dir[100]; + + mx = UFS_LINK_MAX - 2; /* UFS_LINK_MAX = 32767 */ + for (i = 0; i < mx; i++) { + snprintf(dir, sizeof(dir), "%d", i); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + } + + /* The following mkdir(2) must fail */ + i = mx; + snprintf(dir, sizeof(dir), "%d", i); + if (mkdir(dir, 0700) != -1) /* this must fail */ + err(1, "mkdir(%s)", dir); + if (errno != EMLINK) + err(1, "Must fail: mkdir(%s)", dir); + + /* Must succeed */ + i = 0; + snprintf(dir, sizeof(dir), "%d", i); + if (rmdir(dir) == -1) + err(1, "rmdir(%s)", dir); + snprintf(dir, sizeof(dir), "%s", "x"); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + + /* Make room for two top level directories */ + if (rmdir("1") == -1) + err(1, "rmdir(1)"); + if (rmdir("2") == -1) + err(1, "rmdir(2)"); + + /* mkdir a c */ + snprintf(dir, sizeof(dir), "%s", "a"); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + snprintf(dir, sizeof(dir), "%s", "c"); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + + /* mkdir a/b */ + snprintf(dir, sizeof(dir), "%s/%s", "a", "b"); + if (mkdir(dir, 0700) == -1) + err(1, "mkdir(%s)", dir); + + /* mv a/b c/d */ + if (rename("a/b", "c/d") == -1) + err(1, "rename(a/b, c/d)"); + + return (0); +} +EOF +mycc -o /tmp/nlink5 -Wall -Wextra -O2 /tmp/nlink5.c || exit 1 +rm /tmp/nlink5.c + +set -e +here=`pwd` +mount | grep -q "on $mntpoint " && umount -f $mntpoint +mdconfig -l | grep "md$mdstart " && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +newfs -Un /dev/md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +set +e + +cd $mntpoint +/tmp/nlink5; s=$? +n=`find . -type d -maxdepth 1 | wc -l` +[ $n -ne 32766 ] && s=2 +cd $here + +umount $mntpoint +mdconfig -d -u $mdstart +rm /tmp/nlink5 +exit $s