Thanks Serge. I would check it in due time.
Regards--
Subrata
On Tue, Oct 7, 2008 at 5:00 PM, Veerendra Chandrappa <[EMAIL PROTECTED]>wrote:
> Thanks Serge for the patch.
> This patch has overcome the problem of doing 'mount -t proc ..' while
> running the container tests.
>
> Regards, Veerendra C
> ________________________________________________________
> Linux Technology Center, India Software Labs, Bangalore, Ph: 080-4177 6428
>
>
>
> "Serge E. Hallyn"
> <[EMAIL PROTECTED]
> > To
> LTP list
> 10/04/2008 02:28 <[email protected]>
> AM cc
> Veerendra
> Chandrappa/India/[EMAIL PROTECTED],
> Sukadev
> Bhattiprolu <[EMAIL PROTECTED]>
> Subject
> Pid namespaces: unshare mounts
> namespace
>
>
>
>
>
>
>
>
>
>
> If we unshare pidns without unsharing mounts namespace, and then do
> a mount -t proc none /proc, then the new proc sits over the original
> proc for the whole system.
>
> Since pidns03 wasn't using CLONE_NEWNS, when it exited /proc showed
> zero tasks. This can be fixed by doing 'umount -l /proc', but
> 'umount /proc' is insufficient. More to the point, pidns03 wasn't
> trying to clean up /proc at all. So make it use CLONE_NEWNS so
> its private procfs will be automatically cleaned up.
>
> Signed-off-by: Serge E. Hallyn <[EMAIL PROTECTED]>
> ---
> pidns03.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff -Nrup ltp-full-20080930/testcases/kernel/containers/pidns/pidns03.c
> ltp-full-20080930.patched/testcases/kernel/containers/pidns/pidns03.c
> --- ltp-full-20080930/testcases/kernel/containers/pidns/pidns03.c
> 2008-09-30 07:36:38.000000000 -0500
> +++ ltp-full-20080930.patched/testcases/kernel/containers/pidns/pidns03.c
> 2008-10-03 15:52:37.000000000 -0500
> @@ -80,7 +80,7 @@ char **argv;
> ppid = getpid();
>
> /* Create a Container and execute to test the functionality */
> - ret = do_clone_unshare_test(T_CLONE, CLONE_NEWPID, child_fn,
> ppid);
> + ret = do_clone_unshare_test(T_CLONE, CLONE_NEWPID|CLONE_NEWNS,
> child_fn, ppid);
>
> /* check return code */
> if (ret == -1) {
>
>
>
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--
Regards & Thanks--
Subrata
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