svn commit: r301600 - user/pho/stress2/misc
Peter Holm
pho at FreeBSD.org
Wed Jun 8 11:18:50 UTC 2016
Author: pho
Date: Wed Jun 8 11:18:49 2016
New Revision: 301600
URL: https://svnweb.freebsd.org/changeset/base/301600
Log:
Added threaded core dump NFS scenarios.
Sponsored by: EMC / Isilon Storage Division
Added:
user/pho/stress2/misc/nfs15.sh (contents, props changed)
user/pho/stress2/misc/nfs16.sh (contents, props changed)
Added: user/pho/stress2/misc/nfs15.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/nfs15.sh Wed Jun 8 11:18:49 2016 (r301600)
@@ -0,0 +1,203 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2016 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Test effort to reproduce reported: "observed a hang in a multi-threaded
+# process that had hit an assertion failure and was attempting to dump core".
+# Problem never seen.
+
+# Most interesting load are:
+# - coredumping of the multithreaded program with the current dir on NFS,
+# which also accesses NFS files;
+# - advisory locking tests on NFS files, while e.g. sending SIGSTOP/SIGCONT
+# to the test programs.
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+[ -z "$nfs_export" ] && exit 0
+ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 ||
+ exit 0
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > nfs15.c
+mycc -o nfs15 -Wall -Wextra -O2 -g nfs15.c -lpthread || exit 1
+rm -f nfs15.c
+cd $here
+
+mount | grep "on $mntpoint " | grep nfs > /dev/null && umount $mntpoint
+
+mount -t nfs -o tcp -o retrycnt=3 -o soft -o rw -o nolockd -o intr \
+ $nfs_export $mntpoint
+sleep 2
+wd=$mntpoint/nfs15.dir
+rm -rf $wd
+mkdir $wd
+
+(cd $wd; /tmp/nfs15)
+rm -rf $wd
+
+while mount | grep "on $mntpoint " | grep -q nfs; do
+ umount $mntpoint || sleep 1
+done
+
+rm -f /tmp/nfs15
+exit 0
+EOF
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+#include <machine/atomic.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define PARALLEL 4
+#define RUNTIME 300
+#define SYNC 0
+
+volatile u_int *share;
+
+static void *
+t1(void *data __unused)
+{
+ atomic_add_int(&share[SYNC], 1);
+ usleep(arc4random() % 8000);
+ raise(SIGABRT);
+
+ return (NULL);
+}
+
+static void *
+t2(void *data __unused)
+{
+ int fd, i, r;
+ char file[80];
+
+ for (i = 0; i < 100; i++) {
+ atomic_add_int(&share[SYNC], 1);
+ snprintf(file, sizeof(file), "file.%06d", i);
+ if ((fd = open(file, O_WRONLY | O_CREAT | O_APPEND, DEFFILEMODE)) == -1)
+ err(1, "open(%s)", file);
+ do {
+ r = lockf(fd, F_LOCK, 0);
+ } while (r == -1 & errno == EDEADLK);
+ if (r == -1)
+ err(1, "lockf(%s, F_LOCK)", file);
+ write(fd, "x", 1);
+ if (lseek(fd, 0, SEEK_SET) == -1)
+ err(1, "lseek");
+ if (lockf(fd, F_ULOCK, 0) == -1)
+ err(1, "lockf(%s, F_ULOCK)", file);
+ close(fd);
+ }
+
+ return (NULL);
+}
+
+int
+test(void)
+{
+ pthread_t tid[3];
+ int i, rc;
+
+ for (i = 0; i < 10; i++) {
+ if ((rc = pthread_create(&tid[0], NULL, t2, NULL)) == -1)
+ errc(1, rc, "pthread_create");
+ if ((rc = pthread_create(&tid[1], NULL, t2, NULL)) == -1)
+ errc(1, rc, "pthread_create");
+ if ((rc = pthread_create(&tid[2], NULL, t1, NULL)) == -1)
+ errc(1, rc, "pthread_create");
+
+ if ((rc = pthread_join(tid[0], NULL)) == -1)
+ errc(1, rc, "pthread_join");
+ if ((rc = pthread_join(tid[1], NULL)) == -1)
+ errc(1, rc, "pthread_join");
+ if ((rc = pthread_join(tid[2], NULL)) == -1)
+ errc(1, rc, "pthread_join");
+ }
+
+ _exit(0);
+}
+
+int
+main(void)
+{
+ pid_t pids[PARALLEL];
+ size_t len;
+ time_t start;
+ int i, status;
+
+ 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) {
+ for (i = 0; i < PARALLEL; i++) {
+ if ((pids[i] = fork()) == 0)
+ test();
+ }
+
+ for(;;) {
+ if (share[SYNC] > 0)
+ atomic_add_int(&share[SYNC], -1);
+ for (i = 0; i < PARALLEL; i++)
+ kill(pids[i], SIGSTOP);
+ usleep(100 + arc4random() % 1000);
+ for (i = 0; i < PARALLEL; i++)
+ kill(pids[i], SIGCONT);
+ usleep(100 + arc4random() % 400);
+ if (share[SYNC] == 0) { /* If all procs are done */
+ usleep(500);
+ if (share[SYNC] == 0)
+ break;
+ }
+ }
+
+ for (i = 0; i < PARALLEL; i++) {
+ if (waitpid(pids[i], &status, 0) != pids[i])
+ err(1, "waitpid");
+ }
+ }
+
+ return (0);
+}
Added: user/pho/stress2/misc/nfs16.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/nfs16.sh Wed Jun 8 11:18:49 2016 (r301600)
@@ -0,0 +1,198 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2016 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Variation of nfs15.sh, using lockd(8).
+# "panic: Failed to register NFS lock locally - error=11" seen:
+# https://people.freebsd.org/~pho/stress/log/kostik897.txt
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+[ -z "$nfs_export" ] && exit 0
+ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 ||
+ exit 0
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > nfs16.c
+mycc -o nfs16 -Wall -Wextra -O2 -g nfs16.c -lpthread || exit 1
+rm -f nfs16.c
+cd $here
+
+mount | grep "on $mntpoint " | grep nfs > /dev/null && umount $mntpoint
+
+mount -t nfs -o tcp -o retrycnt=3 -o soft -o rw \
+ $nfs_export $mntpoint
+sleep 2
+wd=$mntpoint/nfs16.dir
+rm -rf $wd
+mkdir $wd
+
+(cd $wd; /tmp/nfs16)
+rm -rf $wd
+
+while mount | grep "on $mntpoint " | grep -q nfs; do
+ umount $mntpoint || sleep 1
+done
+
+rm -f /tmp/nfs16
+exit 0
+EOF
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+#include <machine/atomic.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define PARALLEL 4
+#define RUNTIME 300
+#define SYNC 0
+
+volatile u_int *share;
+
+static void *
+t1(void *data __unused)
+{
+ atomic_add_int(&share[SYNC], 1);
+ usleep(arc4random() % 8000);
+ raise(SIGABRT);
+
+ return (NULL);
+}
+
+static void *
+t2(void *data __unused)
+{
+ int fd, i, r;
+ char file[80];
+
+ for (i = 0; i < 100; i++) {
+ atomic_add_int(&share[SYNC], 1);
+ snprintf(file, sizeof(file), "file.%06d", i);
+ if ((fd = open(file, O_WRONLY | O_CREAT | O_APPEND, DEFFILEMODE)) == -1)
+ err(1, "open(%s)", file);
+ do {
+ r = lockf(fd, F_LOCK, 0);
+ } while (r == -1 & errno == EDEADLK);
+ if (r == -1)
+ err(1, "lockf(%s, F_LOCK)", file);
+ write(fd, "x", 1);
+ usleep(arc4random() % 1000);
+ if (lseek(fd, 0, SEEK_SET) == -1)
+ err(1, "lseek");
+ if (lockf(fd, F_ULOCK, 0) == -1)
+ err(1, "lockf(%s, F_ULOCK)", file);
+ close(fd);
+ }
+
+ return (NULL);
+}
+
+int
+test(void)
+{
+ pthread_t tid[3];
+ int i, rc;
+
+ for (i = 0; i < 10; i++) {
+ if ((rc = pthread_create(&tid[0], NULL, t2, NULL)) == -1)
+ errc(1, rc, "pthread_create");
+ if ((rc = pthread_create(&tid[1], NULL, t2, NULL)) == -1)
+ errc(1, rc, "pthread_create");
+ if ((rc = pthread_create(&tid[2], NULL, t1, NULL)) == -1)
+ errc(1, rc, "pthread_create");
+
+ if ((rc = pthread_join(tid[0], NULL)) == -1)
+ errc(1, rc, "pthread_join");
+ if ((rc = pthread_join(tid[1], NULL)) == -1)
+ errc(1, rc, "pthread_join");
+ if ((rc = pthread_join(tid[2], NULL)) == -1)
+ errc(1, rc, "pthread_join");
+ }
+
+ _exit(0);
+}
+
+int
+main(void)
+{
+ pid_t pids[PARALLEL];
+ size_t len;
+ time_t start;
+ int i, status;
+
+ 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) {
+ for (i = 0; i < PARALLEL; i++) {
+ if ((pids[i] = fork()) == 0)
+ test();
+ }
+
+ for(;;) {
+ if (share[SYNC] > 0)
+ atomic_add_int(&share[SYNC], -1);
+ for (i = 0; i < PARALLEL; i++)
+ kill(pids[i], SIGSTOP);
+ usleep(1000);
+ for (i = 0; i < PARALLEL; i++)
+ kill(pids[i], SIGCONT);
+ usleep(100 + arc4random() % 400);
+ if (share[SYNC] == 0) { /* If all procs are done */
+ usleep(500);
+ if (share[SYNC] == 0)
+ break;
+ }
+ }
+
+ for (i = 0; i < PARALLEL; i++) {
+ if (waitpid(pids[i], &status, 0) != pids[i])
+ err(1, "waitpid");
+ }
+ }
+
+ return (0);
+}
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