[CRIU] [PATCH] zdtm: protect random pages in maps04

[Pavel Emelyanov]

On 03/29/2013 08:29 PM, Andrey Vagin wrote:

We should have a test in zdtm that checks maps protections to preserve.
Where is it?

> Signed-off-by: Andrey Vagin <avagin at openvz.org>
> ---
>  test/zdtm/live/static/maps04.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/test/zdtm/live/static/maps04.c b/test/zdtm/live/static/maps04.c
> index 86b23e6..daf841e 100644
> --- a/test/zdtm/live/static/maps04.c
> +++ b/test/zdtm/live/static/maps04.c
> @@ -21,6 +21,7 @@ int main(int argc, char ** argv)
>  {
>  	void *m;
>  	uint32_t crc;
> +	int i;
>  
>  	test_init(argc, argv);
>  
> @@ -35,9 +36,18 @@ int main(int argc, char ** argv)
>  	crc = ~0;
>  	datagen(m, MEM_SIZE, &crc);
>  
> +	for (i = 0; i < MEM_SIZE / (1<<20); i++)
> +		if (mprotect(m + (lrand48() * PAGE_SIZE % MEM_SIZE), PAGE_SIZE, PROT_NONE)) {
> +			err("mprotect");
> +			return 1;
> +		}
> +
>  	test_daemon();
>  	test_waitsig();
>  
> +	if (mprotect(m, MEM_SIZE, PROT_READ))
> +		err("mprotect");
> +
>  	crc = ~0;
>  	if (datachk(m, MEM_SIZE, &crc))
>  		fail("Mem corrupted");
>