stress2: Added a regression test
PR: 261707
This commit is contained in:
parent
4bcc7a5f6b
commit
f0000eb41d
74
tools/test/stress2/misc/shm3.sh
Executable file
74
tools/test/stress2/misc/shm3.sh
Executable file
@ -0,0 +1,74 @@
|
||||
#!/bin/sh
|
||||
|
||||
# Test scenario for Bug 261707.
|
||||
# Based on Kostik's shm_super.sh
|
||||
# "panic: vm_page_free_prep: freeing mapped page ..." seen.
|
||||
|
||||
# Test scenario suggestion by kib@
|
||||
|
||||
. ../default.cfg
|
||||
|
||||
cat > /tmp/shm3.c <<EOF
|
||||
#include <sys/param.h>
|
||||
#include <sys/mman.h>
|
||||
|
||||
#include <err.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#define M(x) ((x) * 1024 * 1024)
|
||||
#define SZ M(256)
|
||||
|
||||
int
|
||||
main(void)
|
||||
{
|
||||
off_t cnt;
|
||||
void *ptr;
|
||||
int error, shmfd;
|
||||
char buf[128];
|
||||
|
||||
shmfd = shm_open(SHM_ANON, O_CREAT | O_RDWR, 0600);
|
||||
if (shmfd == -1)
|
||||
err(1, "shm_open");
|
||||
error = ftruncate(shmfd, SZ);
|
||||
if (error == -1)
|
||||
err(1, "truncate");
|
||||
memset(buf, 0, sizeof(buf));
|
||||
for (cnt = 0; cnt < SZ; cnt += sizeof(buf)) {
|
||||
error = write(shmfd, buf, sizeof(buf));
|
||||
if (error == -1)
|
||||
err(1, "write");
|
||||
else if (error != sizeof(buf))
|
||||
errx(1, "short write %d", (int)error);
|
||||
}
|
||||
ptr = mmap(NULL, SZ, PROT_READ | PROT_WRITE, MAP_SHARED,
|
||||
shmfd, 0);
|
||||
if (ptr == MAP_FAILED)
|
||||
err(1, "mmap");
|
||||
for (cnt = 0; cnt < SZ; cnt += PAGE_SIZE)
|
||||
*((char *)ptr + cnt) = 0;
|
||||
close(shmfd);
|
||||
sleep(30);
|
||||
}
|
||||
EOF
|
||||
mycc -o /tmp/shm3 -Wall -Wextra -O0 -g /tmp/shm3.c || exit 1
|
||||
rm /tmp/shm3.c
|
||||
|
||||
../testcases/swap/swap -t 3m -i 50 > /dev/null &
|
||||
sleep 30
|
||||
for i in `jot 50`; do
|
||||
/tmp/shm3 &
|
||||
done
|
||||
while pgrep -q shm3; do
|
||||
sleep 5
|
||||
done
|
||||
while pkill swap; do
|
||||
sleep .2
|
||||
done
|
||||
wait
|
||||
|
||||
rm -f /tmp/shm3
|
||||
exit $s
|
Loading…
Reference in New Issue
Block a user