14 files changed, 2028 insertions, 0 deletions

diff --git a/tests/fs-tests/stress/Makefile b/tests/fs-tests/stress/Makefile
new file mode 100644
index 0000000..c24ff3f
--- /dev/null
+++ b/tests/fs-tests/stress/Makefile
@@ -0,0 +1,11 @@
+
+SUBDIRS = atoms
+
+all tests: $(SUBDIRS)
+
+clean: $(SUBDIRS)
+	rm -rf run_pdf_test_file_*
+
+.PHONY: $(SUBDIRS)
+$(SUBDIRS):
+	$(MAKE) -C $@ $(MAKECMDGOALS)
diff --git a/tests/fs-tests/stress/atoms/Makefile b/tests/fs-tests/stress/atoms/Makefile
new file mode 100644
index 0000000..9fbfd39
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/Makefile
@@ -0,0 +1,40 @@
+
+ifeq ($(origin CC),default)
+CC = gcc
+endif
+
+CFLAGS := $(CFLAGS) -Wall -g -O2 -I../../lib
+
+LDFLAGS := $(LDFLAGS)
+
+TARGETS = stress_1 \
+	stress_2 \
+	stress_3 \
+	pdfrun \
+	rndwrite00 \
+	fwrite00 \
+	rmdir00 \
+	rndrm00 \
+	rndrm99 \
+	gcd_hupper
+
+all: $(TARGETS)
+
+$(TARGETS): ../../lib/tests.o
+
+../lib/tests.o: ../../lib/tests.h
+
+clean:
+	rm -f *.o $(TARGETS) run_pdf_test_file
+
+tests: all
+	./stress_1 -e
+	./stress_2
+	./stress_3 -e
+	./pdfrun
+	./rndwrite00 -e
+	./fwrite00
+	./rmdir00
+	./rndrm00
+	./rndrm99
+	./gcd_hupper
diff --git a/tests/fs-tests/stress/atoms/fwrite00.c b/tests/fs-tests/stress/atoms/fwrite00.c
new file mode 100644
index 0000000..2f40b3d
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/fwrite00.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+#define WRITE_BUFFER_SIZE 32768
+
+#define HOLE_BLOCK_SIZE 10000000
+
+void filestress00(void)
+{
+	int fd, i, deleted;
+	pid_t pid;
+	ssize_t written;
+	int64_t remains;
+	int64_t repeat;
+	size_t block;
+	char file_name[256];
+	char buf[WRITE_BUFFER_SIZE];
+
+	fd = -1;
+	deleted = 1;
+	pid = getpid();
+	tests_cat_pid(file_name, "filestress00_test_file_", pid);
+	srand(pid);
+	repeat = tests_repeat_parameter;
+	for (;;) {
+		/* Open the file */
+		if (fd == -1) {
+			fd = open(file_name, O_CREAT | O_WRONLY,
+			  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+			CHECK(fd != -1);
+			deleted = 0;
+			if (tests_unlink_flag) {
+				CHECK(unlink(file_name) != -1);
+				deleted = 1;
+			}
+		}
+		/* Get a different set of random data */
+		for (i = 0; i < WRITE_BUFFER_SIZE;++i)
+			buf[i] = rand();
+		if (tests_hole_flag) {
+			/* Make a hole */
+			CHECK(lseek(fd, tests_size_parameter, SEEK_SET) != -1);
+			written = write(fd, "!", 1);
+			if (written <= 0) {
+				/* File system full */
+				CHECK(errno == ENOSPC);
+				errno = 0;
+			}
+			CHECK(lseek(fd, 0, SEEK_SET) != -1);
+			/* Write at set points into the hole */
+			remains = tests_size_parameter;
+			while (remains > HOLE_BLOCK_SIZE) {
+				CHECK(lseek(fd, HOLE_BLOCK_SIZE,
+						SEEK_CUR) != -1);
+				written = write(fd, "!", 1);
+				remains -= HOLE_BLOCK_SIZE;
+				if (written <= 0) {
+					/* File system full */
+					CHECK(errno == ENOSPC);
+					errno = 0;
+					break;
+				}
+			}
+		} else {
+			/* Write data into the file */
+			CHECK(lseek(fd, 0, SEEK_SET) != -1);
+			remains = tests_size_parameter;
+			while (remains > 0) {
+				if (remains > WRITE_BUFFER_SIZE)
+					block = WRITE_BUFFER_SIZE;
+				else
+					block = remains;
+				written = write(fd, buf, block);
+				if (written <= 0) {
+					/* File system full */
+					CHECK(errno == ENOSPC);
+					errno = 0;
+					break;
+				}
+				remains -= written;
+			}
+		}
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		/* Close if tests_close_flag */
+		if (tests_close_flag) {
+			CHECK(close(fd) != -1);
+			fd = -1;
+		}
+		/* Sleep */
+		if (tests_sleep_parameter > 0) {
+			unsigned us = tests_sleep_parameter * 1000;
+			unsigned rand_divisor = RAND_MAX / us;
+			unsigned s = (us / 2) + (rand() / rand_divisor);
+			usleep(s);
+		}
+		/* Delete if tests_delete flag */
+		if (!deleted && tests_delete_flag) {
+			CHECK(unlink(file_name) != -1);
+			deleted = 1;
+		}
+	}
+	CHECK(close(fd) != -1);
+	/* Sleep */
+	if (tests_sleep_parameter > 0) {
+		unsigned us = tests_sleep_parameter * 1000;
+		unsigned rand_divisor = RAND_MAX / us;
+		unsigned s = (us / 2) + (rand() / rand_divisor);
+		usleep(s);
+	}
+	/* Tidy up */
+	if (!deleted)
+		CHECK(unlink(file_name) != -1);
+}
+
+/* Title of this test */
+
+const char *filestress00_get_title(void)
+{
+	return "File stress test 00";
+}
+
+/* Description of this test */
+
+const char *filestress00_get_description(void)
+{
+	return
+		"Create a file named filestress00_test_file_pid, where " \
+		"pid is the process id.  If the unlink option " \
+		"(-u or --unlink) is specified, " \
+		"unlink the file while holding the open file descriptor. " \
+		"If the hole option (-o or --hole) is specified, " \
+		"write a single character at the end of the file, creating a " \
+		"hole. " \
+		"Write a single character in the hole every 10 million " \
+		"bytes. " \
+		"If the hole option is not specified, then the file is " \
+		"filled with random data. " \
+		"If the close option (-c or --close) is specified the file " \
+		"is closed. " \
+		"If a sleep value is specified, the process sleeps. " \
+		"If the delete option (-e or --delete) is specified, then " \
+		"the file is deleted. " \
+		"If a repeat count is specified, then the task repeats " \
+		"that number of times. " \
+		"The repeat count is given by the -n or --repeat option, " \
+		"otherwise it defaults to 1. " \
+		"A repeat count of zero repeats forever. " \
+		"The file size is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"The sleep value is given by the -p or --sleep option, " \
+		"otherwise it defaults to 0. " \
+		"Sleep is specified in milliseconds.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test file size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 1;
+
+	/* Set default test sleep */
+	tests_sleep_parameter = 0;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, filestress00_get_title(),
+			filestress00_get_description(), "znpuoce");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	filestress00();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/gcd_hupper.c b/tests/fs-tests/stress/atoms/gcd_hupper.c
new file mode 100644
index 0000000..31c175d
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/gcd_hupper.c
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <ctype.h>
+#include <dirent.h>
+#include <mntent.h>
+#include <signal.h>
+
+#include "tests.h"
+
+#define MAX_NAME_SIZE 1024
+
+struct gcd_pid
+{
+	struct gcd_pid *next;
+	int pid;
+	char *name;
+	int mtd_index;
+};
+
+struct gcd_pid *gcd_pid_list = NULL;
+
+int add_gcd_pid(const char *number)
+{
+	int pid;
+	FILE *f;
+	char file_name[MAX_NAME_SIZE];
+	char program_name[MAX_NAME_SIZE];
+
+	pid = atoi(number);
+	if (pid <= 0)
+		return 0;
+	snprintf(file_name, MAX_NAME_SIZE, "/proc/%s/stat", number);
+	f = fopen(file_name, "r");
+	if (f == NULL)
+		return 0;
+	if (fscanf(f, "%d %s", &pid, program_name) != 2) {
+		fclose(f);
+		return 0;
+	}
+	if (strncmp(program_name, "(jffs2_gcd_mtd", 14) != 0)
+		pid = 0;
+	if (pid) {
+		size_t sz;
+		struct gcd_pid *g;
+
+		sz = sizeof(struct gcd_pid);
+		g = (struct gcd_pid *) malloc(sz);
+		g->pid = pid;
+		g->name = (char *) malloc(strlen(program_name) + 1);
+		if (g->name)
+			strcpy(g->name, program_name);
+		else
+			exit(1);
+		g->mtd_index = atoi(program_name + 14);
+		g->next = gcd_pid_list;
+		gcd_pid_list = g;
+	}
+	fclose(f);
+	return pid;
+}
+
+int get_pid_list(void)
+{
+	DIR *dir;
+	struct dirent *entry;
+
+	dir = opendir("/proc");
+	if (dir == NULL)
+		return 1;
+	for (;;) {
+		entry = readdir(dir);
+		if (entry) {
+			if (strcmp(".",entry->d_name) != 0 &&
+					strcmp("..",entry->d_name) != 0)
+				add_gcd_pid(entry->d_name);
+		} else
+			break;
+	}
+	closedir(dir);
+	return 0;
+}
+
+int parse_index_number(const char *name)
+{
+	const char *p, *q;
+	int all_zero;
+	int index;
+
+	p = name;
+	while (*p && !isdigit(*p))
+		++p;
+	if (!*p)
+		return -1;
+	all_zero = 1;
+	for (q = p; *q; ++q) {
+		if (!isdigit(*q))
+			return -1;
+		if (*q != '0')
+			all_zero = 0;
+	}
+	if (all_zero)
+		return 0;
+	index = atoi(p);
+	if (index <= 0)
+		return -1;
+	return index;
+}
+
+int get_mtd_index(void)
+{
+	FILE *f;
+	struct mntent *entry;
+	struct stat f_info;
+	struct stat curr_f_info;
+	int found;
+	int mtd_index = -1;
+
+	if (stat(tests_file_system_mount_dir, &f_info) == -1)
+		return -1;
+	f = fopen("/proc/mounts", "rb");
+	if (!f)
+		f = fopen("/etc/mtab", "rb");
+	if (f == NULL)
+		return -1;
+	found = 0;
+	for (;;) {
+		entry = getmntent(f);
+		if (!entry)
+			break;
+		if (stat(entry->mnt_dir, &curr_f_info) == -1)
+			continue;
+		if (f_info.st_dev == curr_f_info.st_dev) {
+			int i;
+
+			i = parse_index_number(entry->mnt_fsname);
+			if (i != -1) {
+				if (found && i != mtd_index)
+					return -1;
+				found = 1;
+				mtd_index = i;
+			}
+		}
+	}
+	fclose(f);
+	return mtd_index;
+}
+
+int get_gcd_pid()
+{
+	struct gcd_pid *g;
+	int mtd_index;
+
+	if (get_pid_list())
+		return 0;
+	mtd_index = get_mtd_index();
+	if (mtd_index == -1)
+		return 0;
+	for (g = gcd_pid_list; g; g = g->next)
+		if (g->mtd_index == mtd_index)
+			return g->pid;
+	return 0;
+}
+
+void gcd_hupper(void)
+{
+	int64_t repeat;
+	int pid;
+
+	pid = get_gcd_pid();
+	CHECK(pid != 0);
+	repeat = tests_repeat_parameter;
+	for (;;) {
+		CHECK(kill(pid, SIGHUP) != -1);
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		/* Sleep */
+		if (tests_sleep_parameter > 0) {
+			unsigned us = tests_sleep_parameter * 1000;
+			unsigned rand_divisor = RAND_MAX / us;
+			unsigned s = (us / 2) + (rand() / rand_divisor);
+			usleep(s);
+		}
+	}
+}
+
+/* Title of this test */
+
+const char *gcd_hupper_get_title(void)
+{
+	return "Send HUP signals to gcd";
+}
+
+/* Description of this test */
+
+const char *gcd_hupper_get_description(void)
+{
+	return
+		"Determine the PID of the gcd process. " \
+		"Send it SIGHUP (may require root privileges). " \
+		"If a sleep value is specified, the process sleeps. " \
+		"If a repeat count is specified, then the task repeats " \
+		"that number of times. " \
+		"The repeat count is given by the -n or --repeat option, " \
+		"otherwise it defaults to 1. " \
+		"A repeat count of zero repeats forever. " \
+		"The sleep value is given by the -p or --sleep option, " \
+		"otherwise it defaults to 1. "
+		"Sleep is specified in milliseconds.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 1;
+
+	/* Set default test sleep */
+	tests_sleep_parameter = 1;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, gcd_hupper_get_title(),
+			gcd_hupper_get_description(), "np");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	gcd_hupper();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/pdfrun.c b/tests/fs-tests/stress/atoms/pdfrun.c
new file mode 100644
index 0000000..3536580
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/pdfrun.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+#define WRITE_BUFFER_SIZE 32768
+
+void adjust_size(void)
+{
+	char dummy[1024];
+	unsigned long total_memory;
+	FILE *f;
+
+	total_memory = 0;
+	f = fopen("/proc/meminfo", "r");
+	fscanf(f, "%s %lu", dummy, &total_memory);
+	fclose(f);
+	if (total_memory > 0 && tests_size_parameter > total_memory / 2)
+		tests_size_parameter = total_memory / 2;
+}
+
+void run_pdf(void)
+{
+	int fd, i;
+	pid_t pid;
+	int64_t repeat;
+	ssize_t written;
+	int64_t remains;
+	size_t block;
+	char file_name[256];
+	char buf[WRITE_BUFFER_SIZE];
+
+	if (tests_fs_is_currfs())
+		return;
+	adjust_size();
+	pid = getpid();
+	tests_cat_pid(file_name, "run_pdf_test_file_", pid);
+	fd = open(file_name, O_CREAT | O_WRONLY,
+		S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+	CHECK(fd != -1);
+	pid = getpid();
+	srand(pid);
+	repeat = tests_repeat_parameter;
+	for (;;) {
+		for (i = 0; i < WRITE_BUFFER_SIZE;++i)
+			buf[i] = rand();
+		remains = tests_size_parameter;
+		while (remains > 0) {
+			if (remains > WRITE_BUFFER_SIZE)
+				block = WRITE_BUFFER_SIZE;
+			else
+				block = remains;
+			written = write(fd, buf, block);
+			if (written <= 0) {
+				CHECK(errno == ENOSPC); /* File system full */
+				errno = 0;
+				break;
+			}
+			remains -= written;
+		}
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		CHECK(lseek(fd, 0, SEEK_SET) == 0);
+	}
+	CHECK(close(fd) != -1);
+	CHECK(unlink(file_name) != -1);
+}
+
+/* Title of this test */
+
+const char *run_pdf_get_title(void)
+{
+	return "Create / overwrite a large file in the current directory";
+}
+
+/* Description of this test */
+
+const char *run_pdf_get_description(void)
+{
+	return
+		"Create a file named run_pdf_test_file_pid, " \
+		"where pid is the process id.  The file is created " \
+		"in the current directory, " \
+		"if the current directory is NOT on the test " \
+		"file system, otherwise no action is taken. " \
+		"If a repeat count is specified, then the task repeats " \
+		"that number of times. " \
+		"The repeat count is given by the -n or --repeat option, " \
+		"otherwise it defaults to 1. " \
+		"A repeat count of zero repeats forever. " \
+		"The size is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"The size is adjusted so that it is not more than " \
+		"half the size of total memory.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test file size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 1;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, run_pdf_get_title(),
+			run_pdf_get_description(), "zn");
+	if (!run_test)
+		return 1;
+	/* Do the actual test */
+	run_pdf();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/rmdir00.c b/tests/fs-tests/stress/atoms/rmdir00.c
new file mode 100644
index 0000000..c1d0729
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/rmdir00.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+void rmdir00(void)
+{
+	int64_t repeat;
+	int64_t size, this_size;
+	pid_t pid;
+	char dir_name[256];
+
+	/* Create a directory to test in */
+	pid = getpid();
+	tests_cat_pid(dir_name, "rmdir00_test_dir_", pid);
+	if (chdir(dir_name) == -1)
+		CHECK(mkdir(dir_name, 0777) != -1);
+	CHECK(chdir(dir_name) != -1);
+	/* Repeat loop */
+	repeat = tests_repeat_parameter;
+	size = 0;
+	for (;;) {
+		/* Remove everything in the directory */
+		tests_clear_dir(".");
+		/* Fill with sub-dirs and small files */
+		do {
+			this_size = tests_create_entry(NULL);
+			if (!this_size)
+				break;
+			size += this_size;
+		} while (this_size &&
+			(tests_size_parameter == 0 ||
+			size < tests_size_parameter));
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		/* Sleep */
+		if (tests_sleep_parameter > 0) {
+			unsigned us = tests_sleep_parameter * 1000;
+			unsigned rand_divisor = RAND_MAX / us;
+			unsigned s = (us / 2) + (rand() / rand_divisor);
+			usleep(s);
+		}
+	}
+	/* Tidy up by removing everything */
+	tests_clear_dir(".");
+	CHECK(chdir("..") != -1);
+	CHECK(rmdir(dir_name) != -1);
+}
+
+/* Title of this test */
+
+const char *rmdir00_get_title(void)
+{
+	return "Create and remove directories and files";
+}
+
+/* Description of this test */
+
+const char *rmdir00_get_description(void)
+{
+	return
+		"Create a directory named rmdir00_test_dir_pid, where " \
+		"pid is the process id.  Within that directory, create " \
+		"a number of sub-directories and small files. " \
+		"The total size of all sub-directories and files " \
+		"is specified by the size parameter. " \
+		"The size parameter is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"A size of zero fills the file system until there is no "
+		"space left. " \
+		"The task repeats, sleeping in between each iteration, " \
+		"and then removing the sub-directories and files created " \
+		"during the last iteration. " \
+		"The repeat count is set by the -n or --repeat option, " \
+		"otherwise it defaults to 1. " \
+		"A repeat count of zero repeats forever. " \
+		"The sleep value is given by the -p or --sleep option, " \
+		"otherwise it defaults to 0. "
+		"Sleep is specified in milliseconds.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 1;
+
+	/* Set default test sleep */
+	tests_sleep_parameter = 0;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, rmdir00_get_title(),
+			rmdir00_get_description(), "znp");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	rmdir00();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/rndrm00.c b/tests/fs-tests/stress/atoms/rndrm00.c
new file mode 100644
index 0000000..724b1c3
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/rndrm00.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+void rndrm00(void)
+{
+	int64_t repeat;
+	int64_t size, this_size;
+	pid_t pid;
+	char dir_name[256];
+
+	/* Create a directory to test in */
+	pid = getpid();
+	tests_cat_pid(dir_name, "rndrm00_test_dir_", pid);
+	if (chdir(dir_name) == -1)
+		CHECK(mkdir(dir_name, 0777) != -1);
+	CHECK(chdir(dir_name) != -1);
+	/* Repeat loop */
+	repeat = tests_repeat_parameter;
+	size = 0;
+	for (;;) {
+		/* Create and remove sub-dirs and small files, */
+		/* but tending to grow */
+		do {
+			if (tests_random_no(3)) {
+				this_size = tests_create_entry(NULL);
+				if (!this_size)
+					break;
+				size += this_size;
+			} else {
+				this_size = tests_remove_entry();
+				size -= this_size;
+				if (size < 0)
+					size = 0;
+				if (!this_size)
+					this_size = 1;
+			}
+		} while (this_size &&
+			(tests_size_parameter == 0 ||
+			size < tests_size_parameter));
+		/* Create and remove sub-dirs and small files, but */
+		/* but tending to shrink */
+		do {
+			if (!tests_random_no(3)) {
+				this_size = tests_create_entry(NULL);
+				size += this_size;
+			} else {
+				this_size = tests_remove_entry();
+				size -= this_size;
+				if (size < 0)
+					size = 0;
+			}
+		} while ((tests_size_parameter != 0 &&
+			size > tests_size_parameter / 10) ||
+			(tests_size_parameter == 0 && size > 100000));
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		/* Sleep */
+		if (tests_sleep_parameter > 0) {
+			unsigned us = tests_sleep_parameter * 1000;
+			unsigned rand_divisor = RAND_MAX / us;
+			unsigned s = (us / 2) + (rand() / rand_divisor);
+			usleep(s);
+		}
+	}
+	/* Tidy up by removing everything */
+	tests_clear_dir(".");
+	CHECK(chdir("..") != -1);
+	CHECK(rmdir(dir_name) != -1);
+}
+
+/* Title of this test */
+
+const char *rndrm00_get_title(void)
+{
+	return "Randomly create and remove directories and files";
+}
+
+/* Description of this test */
+
+const char *rndrm00_get_description(void)
+{
+	return
+		"Create a directory named rndrm00_test_dir_pid, where " \
+		"pid is the process id.  Within that directory, " \
+		"randomly create and remove " \
+		"a number of sub-directories and small files, " \
+		"but do more creates than removes. " \
+		"When the total size of all sub-directories and files " \
+		"is greater than the size specified by the size parameter, " \
+		"start to do more removes than creates. " \
+		"The size parameter is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"A size of zero fills the file system until there is no "
+		"space left. " \
+		"The task repeats, sleeping in between each iteration. " \
+		"The repeat count is set by the -n or --repeat option, " \
+		"otherwise it defaults to 1. " \
+		"A repeat count of zero repeats forever. " \
+		"The sleep value is given by the -p or --sleep option, " \
+		"otherwise it defaults to 0. "
+		"Sleep is specified in milliseconds.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 1;
+
+	/* Set default test sleep */
+	tests_sleep_parameter = 0;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, rndrm00_get_title(),
+			rndrm00_get_description(), "znp");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	rndrm00();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/rndrm99.c b/tests/fs-tests/stress/atoms/rndrm99.c
new file mode 100644
index 0000000..7751839
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/rndrm99.c
@@ -0,0 +1,431 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <time.h>
+#include <sys/vfs.h>
+#include <sys/statvfs.h>
+#include <dirent.h>
+#include <ctype.h>
+#include <limits.h>
+
+#include "tests.h"
+
+uint32_t files_created = 0;
+uint32_t files_removed = 0;
+uint32_t dirs_created = 0;
+uint32_t dirs_removed = 0;
+int64_t *size_ptr = 0;
+
+void display_stats(void)
+{
+	printf(	"\nrndrm99 stats:\n"
+		"\tNumber of files created = %u\n"
+		"\tNumber of files deleted = %u\n"
+		"\tNumber of directories created = %u\n"
+		"\tNumber of directories deleted = %u\n"
+		"\tCurrent net size of creates and deletes = %lld\n",
+		(unsigned) files_created,
+		(unsigned) files_removed,
+		(unsigned) dirs_created,
+		(unsigned) dirs_removed,
+		(long long) (size_ptr ? *size_ptr : 0));
+	fflush(stdout);
+}
+
+struct timeval tv_before;
+struct timeval tv_after;
+
+void before(void)
+{
+	CHECK(gettimeofday(&tv_before, NULL) != -1);
+}
+
+void after(const char *msg)
+{
+	time_t diff;
+	CHECK(gettimeofday(&tv_after, NULL) != -1);
+	diff = tv_after.tv_sec - tv_before.tv_sec;
+	if (diff >= 8) {
+		printf("\nrndrm99: the following fn took more than 8 seconds: %s (took %u secs)\n",msg,(unsigned) diff);
+		fflush(stdout);
+		display_stats();
+	}
+}
+
+#define WRITE_BUFFER_SIZE 32768
+
+static char write_buffer[WRITE_BUFFER_SIZE];
+
+static void init_write_buffer()
+{
+	static int init = 0;
+
+	if (!init) {
+		int i, d;
+		uint64_t u;
+
+		u = RAND_MAX;
+		u += 1;
+		u /= 256;
+		d = (int) u;
+		srand(1);
+		for (i = 0; i < WRITE_BUFFER_SIZE; ++i)
+			write_buffer[i] = rand() / d;
+		init = 1;
+	}
+}
+
+/* Write size random bytes into file descriptor fd at the current position,
+   returning the number of bytes actually written */
+uint64_t fill_file(int fd, uint64_t size)
+{
+	ssize_t written;
+	size_t sz;
+	unsigned start = 0, length;
+	uint64_t remains;
+	uint64_t actual_size = 0;
+
+	init_write_buffer();
+	remains = size;
+	while (remains > 0) {
+		length = WRITE_BUFFER_SIZE - start;
+		if (remains > length)
+			sz = length;
+		else
+			sz = (size_t) remains;
+		before();
+		written = write(fd, write_buffer + start, sz);
+		if (written <= 0) {
+			CHECK(errno == ENOSPC); /* File system full */
+			errno = 0;
+			after("write");
+			fprintf(stderr,"\nrndrm99: write failed with ENOSPC\n");fflush(stderr);
+			display_stats();
+			break;
+		}
+		after("write");
+		remains -= written;
+		actual_size += written;
+		if ((size_t) written == sz)
+			start = 0;
+		else
+			start += written;
+	}
+	return actual_size;
+}
+
+/* Create a file of size file_size */
+uint64_t create_file(const char *file_name, uint64_t file_size)
+{
+	int fd;
+	int flags;
+	mode_t mode;
+	uint64_t actual_size; /* Less than size if the file system is full */
+
+	flags = O_CREAT | O_TRUNC | O_WRONLY;
+	mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH;
+	before();
+	fd = open(file_name, flags, mode);
+	if (fd == -1 && errno == ENOSPC) {
+		errno = 0;
+		after("open");
+		fprintf(stderr,"\nrndrm99: open failed with ENOSPC\n");fflush(stderr);
+		display_stats();
+		return 0; /* File system full */
+	}
+	CHECK(fd != -1);
+	after("open");
+	actual_size = fill_file(fd, file_size);
+	before();
+	CHECK(close(fd) != -1);
+	after("close");
+	if (file_size != 0 && actual_size == 0) {
+		printf("\nrndrm99: unlinking zero size file\n");fflush(stdout);
+		before();
+		CHECK(unlink(file_name) != -1);
+		after("unlink (create_file)");
+	}
+	return actual_size;
+}
+
+/* Create an empty sub-directory or small file in the current directory */
+int64_t create_entry(char *return_name)
+{
+	int fd;
+	char name[256];
+	int64_t res;
+
+	for (;;) {
+		sprintf(name, "%u", (unsigned) tests_random_no(10000000));
+		before();
+		fd = open(name, O_RDONLY);
+		after("open (create_entry)");
+		if (fd == -1)
+			break;
+		before();
+		close(fd);
+		after("close (create_entry)");
+	}
+	if (return_name)
+		strcpy(return_name, name);
+	if (tests_random_no(2)) {
+		res = create_file(name, tests_random_no(4096));
+		if (res > 0)
+			files_created += 1;
+		return res;
+	} else {
+		before();
+		if (mkdir(name, 0777) == -1) {
+			CHECK(errno == ENOSPC);
+			after("mkdir");
+			errno = 0;
+			fprintf(stderr,"\nrndrm99: mkdir failed with ENOSPC\n");fflush(stderr);
+			display_stats();
+			return 0;
+		}
+		after("mkdir");
+		dirs_created += 1;
+		return TESTS_EMPTY_DIR_SIZE;
+	}
+}
+
+/* Remove a random file of empty sub-directory from the current directory */
+int64_t remove_entry(void)
+{
+	DIR *dir;
+	struct dirent *entry;
+	unsigned count = 0, pos;
+	int64_t result = 0;
+
+	before();
+	dir = opendir(".");
+	CHECK(dir != NULL);
+	after("opendir");
+	for (;;) {
+		errno = 0;
+		before();
+		entry = readdir(dir);
+		if (entry) {
+			after("readdir 1");
+			if (strcmp(".",entry->d_name) != 0 &&
+					strcmp("..",entry->d_name) != 0)
+				++count;
+		} else {
+			CHECK(errno == 0);
+			after("readdir 1");
+			break;
+		}
+	}
+	pos = tests_random_no(count);
+	count = 0;
+	before();
+	rewinddir(dir);
+	after("rewinddir");
+	for (;;) {
+		errno = 0;
+		before();
+		entry = readdir(dir);
+		if (!entry) {
+			CHECK(errno == 0);
+			after("readdir 2");
+			break;
+		}
+		after("readdir 2");
+		if (strcmp(".",entry->d_name) != 0 &&
+				strcmp("..",entry->d_name) != 0) {
+			if (count == pos) {
+				if (entry->d_type == DT_DIR) {
+					before();
+					tests_clear_dir(entry->d_name);
+					after("tests_clear_dir");
+					before();
+					CHECK(rmdir(entry->d_name) != -1);
+					after("rmdir");
+					result = TESTS_EMPTY_DIR_SIZE;
+					dirs_removed += 1;
+				} else {
+					struct stat st;
+					before();
+					CHECK(stat(entry->d_name, &st) != -1);
+					after("stat");
+					result = st.st_size;
+					before();
+					CHECK(unlink(entry->d_name) != -1);
+					after("unlink");
+					files_removed += 1;
+				}
+			}
+			++count;
+		}
+	}
+	before();
+	CHECK(closedir(dir) != -1);
+	after("closedir");
+	return result;
+}
+
+void rndrm99(void)
+{
+	int64_t repeat, loop_cnt;
+	int64_t size, this_size;
+	pid_t pid;
+	char dir_name[256];
+
+	size_ptr = &size;
+	/* Create a directory to test in */
+	pid = getpid();
+	tests_cat_pid(dir_name, "rndrm99_test_dir_", pid);
+	if (chdir(dir_name) == -1)
+		CHECK(mkdir(dir_name, 0777) != -1);
+	CHECK(chdir(dir_name) != -1);
+	/* Repeat loop */
+	repeat = tests_repeat_parameter;
+	size = 0;
+	for (;;) {
+		/* Create and remove sub-dirs and small files, */
+		/* but tending to grow */
+		printf("\nrndrm99: growing\n");fflush(stdout);
+		loop_cnt = 0;
+		do {
+			if (loop_cnt++ % 2000 == 0)
+				display_stats();
+			if (tests_random_no(3)) {
+				this_size = create_entry(NULL);
+				if (!this_size)
+					break;
+				size += this_size;
+			} else {
+				this_size = remove_entry();
+				size -= this_size;
+				if (size < 0)
+					size = 0;
+				if (!this_size)
+					this_size = 1;
+			}
+		} while (this_size &&
+			(tests_size_parameter == 0 ||
+			size < tests_size_parameter));
+		/* Create and remove sub-dirs and small files, but */
+		/* but tending to shrink */
+		printf("\nrndrm99: shrinking\n");fflush(stdout);
+		loop_cnt = 0;
+		do {
+			if (loop_cnt++ % 2000 == 0)
+				display_stats();
+			if (!tests_random_no(3)) {
+				this_size = create_entry(NULL);
+				size += this_size;
+			} else {
+				this_size = remove_entry();
+				size -= this_size;
+				if (size < 0)
+					size = 0;
+			}
+		} while ((tests_size_parameter != 0 &&
+			size > tests_size_parameter / 10) ||
+			(tests_size_parameter == 0 && size > 100000));
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		/* Sleep */
+		if (tests_sleep_parameter > 0) {
+			unsigned us = tests_sleep_parameter * 1000;
+			unsigned rand_divisor = RAND_MAX / us;
+			unsigned s = (us / 2) + (rand() / rand_divisor);
+			printf("\nrndrm99: sleeping\n");fflush(stdout);
+			usleep(s);
+		}
+	}
+	printf("\nrndrm99: tidying\n");fflush(stdout);
+	display_stats();
+	/* Tidy up by removing everything */
+	tests_clear_dir(".");
+	CHECK(chdir("..") != -1);
+	CHECK(rmdir(dir_name) != -1);
+	size_ptr = 0;
+}
+
+/* Title of this test */
+
+const char *rndrm99_get_title(void)
+{
+	return "Randomly create and remove directories and files";
+}
+
+/* Description of this test */
+
+const char *rndrm99_get_description(void)
+{
+	return
+		"Create a directory named rndrm99_test_dir_pid, where " \
+		"pid is the process id.  Within that directory, " \
+		"randomly create and remove " \
+		"a number of sub-directories and small files, " \
+		"but do more creates than removes. " \
+		"When the total size of all sub-directories and files " \
+		"is greater than the size specified by the size parameter, " \
+		"start to do more removes than creates. " \
+		"The size parameter is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"A size of zero fills the file system until there is no "
+		"space left. " \
+		"The task repeats, sleeping in between each iteration. " \
+		"The repeat count is set by the -n or --repeat option, " \
+		"otherwise it defaults to 1. " \
+		"A repeat count of zero repeats forever. " \
+		"The sleep value is given by the -p or --sleep option, " \
+		"otherwise it defaults to 0. "
+		"Sleep is specified in milliseconds.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 1;
+
+	/* Set default test sleep */
+	tests_sleep_parameter = 0;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, rndrm99_get_title(),
+			rndrm99_get_description(), "znp");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	rndrm99();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/rndwrite00.c b/tests/fs-tests/stress/atoms/rndwrite00.c
new file mode 100644
index 0000000..655d9cc
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/rndwrite00.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <limits.h>
+
+#include "tests.h"
+
+#define BLOCK_SIZE 32768
+#define BUFFER_SIZE 32768
+
+static void check_file(int fd, char *data, size_t length)
+{
+	size_t n, i;
+	char buf[BUFFER_SIZE];
+
+	CHECK(lseek(fd, 0, SEEK_SET) != -1);
+	n = 0;
+	for (;;) {
+		i = read(fd, buf, BUFFER_SIZE);
+		CHECK(i >= 0);
+		if (i == 0)
+			break;
+		CHECK(memcmp(buf, data + n, i) == 0);
+		n += i;
+	}
+	CHECK(n == length);
+}
+
+void rndwrite00(void)
+{
+	int fd;
+	pid_t pid;
+	ssize_t written;
+	size_t remains;
+	size_t block;
+	size_t actual_size;
+	size_t check_every;
+	char *data, *p, *q;
+	off_t offset;
+	size_t size;
+	int64_t repeat;
+	char file_name[256];
+	char buf[4096];
+
+	/* Create file */
+	pid = getpid();
+	tests_cat_pid(file_name, "rndwrite00_test_file_", pid);
+	fd = open(file_name, O_CREAT | O_RDWR | O_TRUNC,
+		S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+	CHECK(fd != -1);
+	/* Allocate memory to hold file data */
+	CHECK(tests_size_parameter > 0);
+	CHECK(tests_size_parameter <= SIZE_MAX);
+	data = (char *) malloc(tests_size_parameter);
+	CHECK(data != NULL);
+	/* Fill with random data */
+	srand(pid);
+	for (p = data, q = data + tests_size_parameter; p != q; ++p)
+		*p = rand();
+	/* Write to file */
+	p = data;
+	remains = tests_size_parameter;
+	while (remains > 0) {
+		if (remains > BLOCK_SIZE)
+			block = BLOCK_SIZE;
+		else
+			block = remains;
+		written = write(fd, p, block);
+		if (written <= 0) {
+			CHECK(errno == ENOSPC); /* File system full */
+			errno = 0;
+			break;
+		}
+		remains -= written;
+		p += written;
+	}
+	actual_size = p - data;
+	/* Repeating bit */
+	repeat = tests_repeat_parameter;
+	check_every = actual_size / 8192;
+	for (;;) {
+		offset = tests_random_no(actual_size);
+		size = tests_random_no(4096);
+		/* Don't change the file size */
+		if (offset + size > actual_size)
+			size = actual_size - offset;
+		if (!size)
+			continue;
+		for (p = buf, q = p + size; p != q; ++p)
+			*p = rand();
+		CHECK(lseek(fd, offset, SEEK_SET) != -1);
+		written = write(fd, buf, size);
+		if (written <= 0) {
+			CHECK(errno == ENOSPC); /* File system full */
+			errno = 0;
+		} else
+			memcpy(data + offset, buf, written);
+		/* Break if repeat count exceeded */
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+		if (repeat % check_every == 0)
+			check_file(fd, data, actual_size);
+		/* Sleep */
+		if (tests_sleep_parameter > 0) {
+			unsigned us = tests_sleep_parameter * 1000;
+			unsigned rand_divisor = RAND_MAX / us;
+			unsigned s = (us / 2) + (rand() / rand_divisor);
+			usleep(s);
+		}
+	}
+	/* Check and close file */
+	check_file(fd, data, actual_size);
+	CHECK(close(fd) != -1);
+	if (tests_delete_flag)
+		CHECK(unlink(file_name) != -1);
+}
+
+/* Title of this test */
+
+const char *rndwrite00_get_title(void)
+{
+	return "Randomly write a large test file";
+}
+
+/* Description of this test */
+
+const char *rndwrite00_get_description(void)
+{
+	return
+		"Create a file named rndwrite00_test_file_pid, where " \
+		"pid is the process id. " \
+		"The file is filled with random data. " \
+		"The size of the file is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"Then a randomly sized block of random data is written at a " \
+		"random location in the file. "\
+		"The block size is always in the range 1 to 4095. " \
+		"If a sleep value is specified, the process sleeps. " \
+		"The number of writes is given by the repeat count. " \
+		"The repeat count is set by the -n or --repeat option, " \
+		"otherwise it defaults to 10000. " \
+		"A repeat count of zero repeats forever. " \
+		"The sleep value is given by the -p or --sleep option, " \
+		"otherwise it defaults to 0. "
+		"Sleep is specified in milliseconds. " \
+		"Periodically the data in the file is checked with a copy " \
+		"held in memory. " \
+		"If the delete option is specified the file is finally " \
+		"deleted.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test file size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 10000;
+
+	/* Set default test sleep */
+	tests_sleep_parameter = 0;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, rndwrite00_get_title(),
+			rndwrite00_get_description(), "zne");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	rndwrite00();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/stress_1.c b/tests/fs-tests/stress/atoms/stress_1.c
new file mode 100644
index 0000000..86f94c2
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/stress_1.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+#define WRITE_BUFFER_SIZE 32768
+
+void stress_1(void)
+{
+	int fd, i;
+	pid_t pid;
+	ssize_t written;
+	int64_t remains;
+	size_t block;
+	char file_name[256];
+	char buf[WRITE_BUFFER_SIZE];
+
+	pid = getpid();
+	tests_cat_pid(file_name, "stress_1_test_file_", pid);
+	fd = open(file_name, O_CREAT | O_WRONLY,
+		S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+	CHECK(fd != -1);
+	srand(pid);
+	for (i = 0; i < WRITE_BUFFER_SIZE;++i)
+		buf[i] = rand();
+	remains = tests_size_parameter;
+	while (remains > 0) {
+		if (remains > WRITE_BUFFER_SIZE)
+			block = WRITE_BUFFER_SIZE;
+		else
+			block = remains;
+		written = write(fd, buf, block);
+		if (written <= 0) {
+			CHECK(errno == ENOSPC); /* File system full */
+			errno = 0;
+			break;
+		}
+		remains -= written;
+	}
+	CHECK(close(fd) != -1);
+	if (tests_delete_flag)
+		CHECK(unlink(file_name) != -1);
+}
+
+/* Title of this test */
+
+const char *stress_1_get_title(void)
+{
+	return "Create / overwrite a large file";
+}
+
+/* Description of this test */
+
+const char *stress_1_get_description(void)
+{
+	return
+		"Create a file named stress_1_test_file_pid, " \
+		"where pid is the process id. " \
+		"The size is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"The file will be deleted if the delete option " \
+		"is specified. ";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test file size */
+	tests_size_parameter = 1000000;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, stress_1_get_title(),
+			stress_1_get_description(), "ze");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	stress_1();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/stress_2.c b/tests/fs-tests/stress/atoms/stress_2.c
new file mode 100644
index 0000000..a9bc31a
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/stress_2.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+#define WRITE_BUFFER_SIZE 32768
+
+void stress_2(void)
+{
+	int fd, i;
+	pid_t pid;
+	ssize_t written;
+	int64_t remains;
+	int64_t repeat;
+	size_t block;
+	char *file_name;
+	char buf[WRITE_BUFFER_SIZE];
+
+	file_name = "stress_2_test_file";
+	fd = open(file_name, O_CREAT | O_WRONLY,
+		S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+	CHECK(fd != -1);
+	CHECK(unlink(file_name) != -1);
+	pid = getpid();
+	srand(pid);
+	repeat = tests_repeat_parameter;
+	for (;;) {
+		for (i = 0; i < WRITE_BUFFER_SIZE;++i)
+			buf[i] = rand();
+		CHECK(lseek(fd, 0, SEEK_SET) != -1);
+		remains = tests_size_parameter;
+		while (remains > 0) {
+			if (remains > WRITE_BUFFER_SIZE)
+				block = WRITE_BUFFER_SIZE;
+			else
+				block = remains;
+			written = write(fd, buf, block);
+			if (written <= 0) {
+				CHECK(errno == ENOSPC); /* File system full */
+				errno = 0;
+				break;
+			}
+			remains -= written;
+		}
+		if (tests_repeat_parameter > 0 && --repeat <= 0)
+			break;
+	}
+	CHECK(close(fd) != -1);
+}
+
+/* Title of this test */
+
+const char *stress_2_get_title(void)
+{
+	return "Create / overwrite a large deleted file";
+}
+
+/* Description of this test */
+
+const char *stress_2_get_description(void)
+{
+	return
+		"Create a file named stress_2_test_file. " \
+		"Open it, delete it while holding the open file descriptor, " \
+		"then fill it with random data. " \
+		"Repeated re-write the file some number of times. " \
+		"The repeat count is given by the -n or --repeat option, " \
+		"otherwise it defaults to 10. " \
+		"The file size is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test file size */
+	tests_size_parameter = 1000000;
+
+	/* Set default test repetition */
+	tests_repeat_parameter = 10;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, stress_2_get_title(),
+			stress_2_get_description(), "zn");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	stress_2();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/atoms/stress_3.c b/tests/fs-tests/stress/atoms/stress_3.c
new file mode 100644
index 0000000..99fb05d
--- /dev/null
+++ b/tests/fs-tests/stress/atoms/stress_3.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+#define WRITE_BUFFER_SIZE 32768
+
+void stress_3(void)
+{
+	int fd, i;
+	pid_t pid;
+	ssize_t written;
+	int64_t remains;
+	size_t block;
+	char file_name[256];
+	char buf[WRITE_BUFFER_SIZE];
+
+	pid = getpid();
+	tests_cat_pid(file_name, "stress_3_test_file_", pid);
+	fd = open(file_name, O_CREAT | O_WRONLY,
+		S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+	CHECK(fd != -1);
+	pid = getpid();
+	srand(pid);
+	for (i = 0; i < WRITE_BUFFER_SIZE;++i)
+		buf[i] = rand();
+	CHECK(lseek(fd, tests_size_parameter, SEEK_SET) != -1);
+	CHECK(write(fd, "!", 1) == 1);
+	CHECK(lseek(fd, 0, SEEK_SET) != -1);
+	remains = tests_size_parameter;
+	while (remains > 0) {
+		if (remains > WRITE_BUFFER_SIZE)
+			block = WRITE_BUFFER_SIZE;
+		else
+			block = remains;
+		written = write(fd, buf, block);
+		if (written <= 0) {
+			CHECK(errno == ENOSPC); /* File system full */
+			errno = 0;
+			break;
+		}
+		remains -= written;
+	}
+	if (ftruncate(fd, 0) == -1) {
+		CHECK(errno == ENOSPC); /* File system full */
+		errno = 0;
+	}
+	CHECK(close(fd) != -1);
+	if (tests_delete_flag)
+		CHECK(unlink(file_name) != -1);
+}
+
+/* Title of this test */
+
+const char *stress_3_get_title(void)
+{
+	return "Create a file with a large hole and fill it";
+}
+
+/* Description of this test */
+
+const char *stress_3_get_description(void)
+{
+	return
+		"Create a file named stress_3_test_file_pid, " \
+		"where pid is the process id. " \
+		"Write a single character past the end of the file, " \
+		"based on the specified file size, " \
+		"which creates a hole in the file. "
+		"Fill the hole with random data. " \
+		"Then truncate the file length to zero. " \
+		"The size is given by the -z or --size option, " \
+		"otherwise it defaults to 1000000. " \
+		"The file will be deleted if the delete option " \
+		"is specified.";
+}
+
+int main(int argc, char *argv[])
+{
+	int run_test;
+
+	/* Set default test file size */
+	tests_size_parameter = 1000000;
+
+	/* Handle common arguments */
+	run_test = tests_get_args(argc, argv, stress_3_get_title(),
+			stress_3_get_description(), "ze");
+	if (!run_test)
+		return 1;
+	/* Change directory to the file system and check it is ok for testing */
+	tests_check_test_file_system();
+	/* Do the actual test */
+	stress_3();
+	return 0;
+}
diff --git a/tests/fs-tests/stress/stress00.sh b/tests/fs-tests/stress/stress00.sh
new file mode 100755
index 0000000..be95d7c
--- /dev/null
+++ b/tests/fs-tests/stress/stress00.sh
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+TEST_DIR=$TEST_FILE_SYSTEM_MOUNT_DIR
+if test -z "$TEST_DIR";
+then
+	TEST_DIR="/mnt/test_file_system"
+fi
+
+FREESPACE=`../utils/free_space "$TEST_DIR"`
+
+if test -z "$FREESPACE";
+then
+	echo "Failed to determine free space"
+	exit 1
+fi
+
+if test -n "$1";
+then
+	DURATION="-d$1";
+else
+	DURATION="";
+fi
+
+FWRITE00=atoms/fwrite00
+RNDWR=atoms/rndwrite00
+GCHUP=atoms/gcd_hupper
+PDFLUSH=atoms/pdfrun
+FSIZE=$(( $FREESPACE/15 ));
+
+../utils/fstest_monitor $DURATION \
+"$FWRITE00 -z $FSIZE -n0 -p 20" \
+"$FWRITE00 -z $FSIZE -n0 -p 10 -s" \
+"$FWRITE00 -z $FSIZE -n0 -p 20 -u" \
+"$FWRITE00 -z $FSIZE -n0 -p 70 -o" \
+"$FWRITE00 -z $FSIZE -n0 -p 15 -s -o -u" \
+"$FWRITE00 -z $FSIZE -n0 -p 10 -u -c" \
+"$FWRITE00 -z $FSIZE -n0 -p 10 -u -o -c" \
+"$FWRITE00 -z $FSIZE -n0 -p 10 -o -c" \
+"$FWRITE00 -z $FSIZE -n0 -p 100 -o -u" \
+"$FWRITE00 -z $FSIZE -n0 -p 100 -s -o -u -c" \
+"$FWRITE00 -z $FSIZE -n0 -p 100 -o -u" \
+"$FWRITE00 -z $FSIZE -n0 -p 100 -u" \
+"$FWRITE00 -z $FSIZE -n0 -p 100 -s -o" \
+"$RNDWR -z $FSIZE -n0 -p 10 -e" \
+"$RNDWR -z $FSIZE -n0 -p 100 -e" \
+"$PDFLUSH -z 1073741824 -n0" \
+"$GCHUP -n0"
+
+STATUS=$?
+
+rm -rf ${TEST_DIR}/*
+
+exit $STATUS
diff --git a/tests/fs-tests/stress/stress01.sh b/tests/fs-tests/stress/stress01.sh
new file mode 100755
index 0000000..5913c1c
--- /dev/null
+++ b/tests/fs-tests/stress/stress01.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+TEST_DIR=$TEST_FILE_SYSTEM_MOUNT_DIR
+if test -z "$TEST_DIR";
+then
+	TEST_DIR="/mnt/test_file_system"
+fi
+
+FREESPACE=`../utils/free_space "$TEST_DIR"`
+
+if test -z "$FREESPACE";
+then
+	echo "Failed to determine free space"
+	exit 1
+fi
+
+if test -n "$1";
+then
+	DURATION="-d$1";
+else
+	DURATION="";
+fi
+
+FWRITE00=atoms/fwrite00
+RNDWR=atoms/rndwrite00
+PDFLUSH=atoms/pdfrun
+FSIZE=$(( $FREESPACE/15 ));
+
+../utils/fstest_monitor $DURATION \
+"$FWRITE00 -z $FSIZE -n0 -p 300" \
+"$FWRITE00 -z $FSIZE -n0 -u" \
+"$FWRITE00 -z $FSIZE -n0 -u -c" \
+"$FWRITE00 -z $FSIZE -n0 -s -o" \
+"$RNDWR -z $FSIZE -n0 -e"
+
+STATUS=$?
+
+rm -rf ${TEST_DIR}/*
+
+exit $STATUS