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#!/bin/sh
# No problems seen
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
kldstat -v | grep -q zfs.ko || { kldload zfs.ko; loaded=1; } ||
exit 0
. ../default.cfg
here=`pwd`
cd /tmp
sed '1,/^EOF/d' < $here/datamove.sh > zfs16.c
mycc -o zfs16 -Wall -O0 -g zfs16.c || exit 1
rm -f zfs16.c
mp1=/stress2_tank/test
u1=$mdstart
u2=$((u1 + 1))
set -eu
mdconfig -l | grep -q md$u1 && mdconfig -d -u $u1
mdconfig -l | grep -q md$u2 && mdconfig -d -u $u2
mdconfig -s 2g -u $u1
mdconfig -s 2g -u $u2
zpool list | egrep -q "^stress2_tank" && zpool destroy stress2_tank
[ -d /stress2_tank ] && rm -rf /stress2_tank
zpool create stress2_tank md$u1 md$u2
zfs create stress2_tank/test
set +e
(cd $here/../testcases/swap; ./swap -t 2m -i 20 -l 100 -h > /dev/null) &
sleep 2
cd $mp1
while pgrep -q swap; do
/tmp/zfs16; s=$?
rm -f /stress2_tank/test/*
done
cd $here
while pkill swap; do sleep 1; done
wait
zfs umount stress2_tank/test
zfs destroy -r stress2_tank
zpool destroy stress2_tank
mdconfig -d -u $u1
mdconfig -d -u $u2
rm -f /tmp/zfs16
set +u
[ $loaded ] && kldunload zfs.ko
exit $s
EOF
#include <sys/types.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/param.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#define SIZ (500UL * 1024 * 1024)
int
main(int argc __unused, char *argv[])
{
off_t hole;
size_t len;
int fd;
char *p, *path;
len = SIZ;
path = argv[1];
if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == -1)
err(1,"open()");
if (ftruncate(fd, len) == -1)
err(1, "ftruncate");
if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
MAP_FAILED) {
if (errno == ENOMEM)
return (1);
err(1, "mmap(1)");
}
p[1 * 1024] = 1;
p[2 * 1024] = 1;
p[4 * 1024] = 1;
if (msync(p, len, MS_SYNC | MS_INVALIDATE) == -1)
err(1, "msync()");
if ((hole = lseek(fd, 0, SEEK_HOLE)) == -1)
err(1, "lseek(SEEK_HOLE)");
if (hole != SIZ)
printf("--> hole = %jd, file size=%jd\n",
(intmax_t)hole, (intmax_t)SIZ);
close(fd);
return (hole == SIZ ? 0 : 1);
}
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