Hi Folks,

You can find here the testcases for PID Namespace feature which recently went to kernel.

Here i am providing the basic functionality testing for PID Namespace, i have tested this patch on varios architectures.

Here is the patch description:

[PATCH 1/6] :  This patch test for PID namespace kernel enablement on which LTP is running.

[PATCH 2/6] :  This patch implements a basic test for cloning pid namespace. It  verifies
                       that the newly created child process has pid == 1 and ppid == 0.

[PATCH 3/6] :  This patch implements a basic test for cloning pid namespace. It  verifies
                       that the newly created child process has sid == 1 and pgid == 1 after calling setsid() inside container.

[PATCH 4/6] :  This patch test for cloned parent process id inside container-init after mounting /proc .
                         The basic idea behind this is to see, i am able to open parent namespace /proc/ppid directory
                          from inside container and also comparing parent pid as 0 instead of some other pid (assume e.g: 1234)

[PATCH 5/6] :  Adding the functionality for compiling the code without ltp library with NO_LTP flag.

[PATCH 6/6] :  Added README file for PIDNS.


Here is the result i have executed on  ltp-full-20071130.tgz

===================Result ===============================
Running pidns tests.
pid_namespace1    0  INFO  :  PIDNS test is running inside container

pid_namespace1    1  PASS  :  Success
pid_namespace2    0  INFO  :  Checking session id & group id inside container

pid_namespace2    1  PASS  :  Success: Got Group ID = 1 & Session ID = 1

pid_namespace3    0  INFO  :   Checking pid for parent ns and container-init
                                Parent namespace pid = 30782,container parent pid = 0,and container pid = 1

pid_namespace3    1  PASS  :  Got the proc file directory created by parent ns 30782
======================================================

Thanks
Rishi
IBM, LTC, Bangalore , India