[CRIU] [PATCH 9/9] test: zdtm -- Add proc-self test

[Pavel Emelyanov]

On 05/17/2013 05:20 PM, Cyrill Gorcunov wrote:
> 
> Just open /proc/self/ns/net and check if
> it remains the same on restore.
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
> ---
>  test/zdtm/live/static/Makefile    |  1 +
>  test/zdtm/live/static/proc-self.c | 75 +++++++++++++++++++++++++++++++++++++++
>  2 files changed, 76 insertions(+)
>  create mode 100644 test/zdtm/live/static/proc-self.c
> 


> +	if (read_fd_link(fd_self, path_orig, sizeof(path_orig))) {
> +		err("Can't fill original path");
> +		return -1;
> +	}
> +
> +	test_daemon();
> +	test_waitsig();
> +
> +	if (read_fd_link(fd_self, path_new, sizeof(path_new))) {
> +		err("Can't fill new path");
> +		return -1;
> +	}
> +
> +	if (memcmp(path_orig, path_new, sizeof(NS_ENTRY) - 1)) {

This can't PASS strictly speaking. On restore we create _another_ namespace and
do not guarantee that kernel creates the same ID for namespace. See

http://criu.org/What_can_change_after_C/R

> +		fail("Paths mismatch %s %s\n", path_orig, path_new);
> +		return -1;
> +	}