Date: Tue, 14 Jan 2020 06:15:41 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r356721 - user/pho/stress2/misc Message-ID: <202001140615.00E6FfI7042188@repo.freebsd.org>
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Author: pho Date: Tue Jan 14 06:15:41 2020 New Revision: 356721 URL: https://svnweb.freebsd.org/changeset/base/356721 Log: Added a SUJ rename(2) regression test. Added: user/pho/stress2/misc/rename14.sh (contents, props changed) Added: user/pho/stress2/misc/rename14.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/rename14.sh Tue Jan 14 06:15:41 2020 (r356721) @@ -0,0 +1,200 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2019 Dell EMC Isilon +# +# 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. +# +# $FreeBSD$ +# + +# "panic: handle_workitem_remove: DIRCHG and worklist not empty." seen: +# https://people.freebsd.org/~pho/stress/log/rename14.txt +# Fixed by r356714 + +# Based on a syzkaller scenario reported by tuexen@freebsd.org + +. ../default.cfg +[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 + +dir=/tmp +odir=`pwd` +cd $dir +sed -e '1,/^EOF/d' < $odir/$0 > $dir/rename14.c +mycc -o rename14 -Wall -Wextra -O0 -g rename14.c -lpthread || exit 1 +rm -f rename14.c +cd $odir + +set -e +mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 2g -u $mdstart +[ `jot -r 1 0 1` -eq 1 ] && opt="-U -n" || opt="-j -n" +newfs -j -n md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +set +e + +s=0 +(cd /mnt; /tmp/rename14) +[ -f rename14.core -a $s -eq 0 ] && + { ls -l rename14.core; mv rename14.core $dir; s=1; } +cd $odir + +for i in `jot 6`; do + mount | grep -q "on $mntpoint " || break + umount $mntpoint && break || sleep 10 + [ $i -eq 6 ] && + { echo FATAL; fstat -mf $mntpoint; exit 1; } +done +checkfs /dev/md$mdstart || s=2 +mdconfig -d -u $mdstart +rm -rf $dir/rename14 +exit $s + +EOF +#include <sys/param.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <machine/atomic.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +static sig_atomic_t done_testing; +static volatile u_int *share; + +#define PARALLEL 10 +#define RUNTIME (3 * 60) +#define SYNC 0 + +static void * +t1(void *data __unused) +{ + char n1[80]; + + snprintf(n1, sizeof(n1), "file1.%d", getpid()); + while (done_testing == 0) { + rmdir(n1); + usleep(50000); + } + + return (NULL); +} + +static void * +t2(void *data __unused) +{ + time_t start; + char n0[80], n00[80], n1[80]; + + snprintf(n0, sizeof(n0), "file0.%d", getpid()); + snprintf(n00, sizeof(n00), "file0.%d/file0", getpid()); + snprintf(n1, sizeof(n1), "file1.%d", getpid()); + if (mkdir(n0, 0) == -1) + err(1, "mkdir(%s)", n0); + + start = time(NULL); + while (time(NULL) - start < 60) { + if (mkdir(n00, 0) == -1) + err(1, "mkdir(%s)", n00); + if (rename(n00, n1) == -1) + err(1, "rename(i%s, %s)", n00, n1); + } + if (rmdir(n0) == -1) + err(1, "rmdir(%s)", n0); + done_testing = 1; + + return (NULL); +} + +static void +test(void) +{ + pthread_t tid[2]; + int r; + + atomic_add_int(&share[SYNC], 1); + while (share[SYNC] != PARALLEL) + ; + + done_testing = 0; + if ((r = pthread_create(&tid[0], NULL, t1, NULL)) != 0) + errc(1, r, "pthread_create"); + if ((r = pthread_create(&tid[1], NULL, t2, NULL)) != 0) + errc(1, r, "pthread_create"); + + if ((r = pthread_join(tid[0], NULL)) != 0) + errc(1, r, "pthread_join"); + if ((r = pthread_join(tid[1], NULL)) != 0) + errc(1, r, "pthread_join"); + + _exit(0); +} + +int +main(void) +{ + pid_t pids[PARALLEL]; + size_t len; + time_t start; + int e, i, status; + + e = 0; + len = PAGE_SIZE; + if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, + MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) + err(1, "mmap"); + + start = time(NULL); + while ((time(NULL) - start) < RUNTIME && e == 0) { + share[SYNC] = 0; + for (i = 0; i < PARALLEL; i++) { + if ((pids[i] = fork()) == 0) + test(); + if (pids[i] == -1) + err(1, "fork()"); + } + for (i = 0; i < PARALLEL; i++) { + if (waitpid(pids[i], &status, 0) == -1) + err(1, "waitpid(%d)", pids[i]); + if (status != 0) { + if (WIFSIGNALED(status)) + fprintf(stderr, + "pid %d exit signal %d\n", + pids[i], WTERMSIG(status)); + } + e += status == 0 ? 0 : 1; + } + } + + return (e); +}
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