From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1RziVY-0000tE-98 for ltp-list@lists.sourceforge.net; Tue, 21 Feb 2012 05:43:24 +0000 Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by sog-mx-3.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1RziVW-00015b-OV for ltp-list@lists.sourceforge.net; Tue, 21 Feb 2012 05:43:24 +0000 Message-ID: <4F432EF6.40601@cn.fujitsu.com> Date: Tue, 21 Feb 2012 13:43:18 +0800 From: Peng Haitao MIME-Version: 1.0 Subject: [LTP] [PATCH v3 2/2] shmem_2nstest: fix a bug of hang List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-list-bounces@lists.sourceforge.net To: Caspar Zhang Cc: LTP List commit d2e9f84 replace fprintf() with snprintf() in tst_print(), but this will cause container_test.sh hang in case shmem_2nstest. If compile tst_res.c without -O[level], the case will not hang. When I test the following cases: # ./shmem_2nstest none shmem_2nstest 0 TINFO : Shared Memory namespace test : none shmem_2nstest 0 TINFO : Cont1: Able to create shared mem segment shmem_2nstest 1 TPASS : Plain cloned process able to access shmem segment created # ./shmem_2nstest unshare shmem_2nstest 0 TINFO : Shared Memory namespace test : unshare shmem_2nstest 0 TINFO : Cont1: Able to create shared mem segment shmem_2nstest 0 TINFO : Cont2: Able to allocate shmem seg with the same key shmem_2nstest 1 TPASS : unshare : In namespace2 unable to access the shmem seg created in Namespace1 # ./shmem_2nstest clone shmem_2nstest 0 TINFO : Shared Memory namespace test : clone this will hang up. So I think tst_resm("Cont1") will cause hang. Signed-off-by: Peng Haitao --- .../kernel/containers/sysvipc/shmem_2nstest.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/testcases/kernel/containers/sysvipc/shmem_2nstest.c b/testcases/kernel/containers/sysvipc/shmem_2nstest.c index 7a468ad..28e91ff 100644 --- a/testcases/kernel/containers/sysvipc/shmem_2nstest.c +++ b/testcases/kernel/containers/sysvipc/shmem_2nstest.c @@ -69,8 +69,8 @@ int check_shmem1(void *vtest) if (id1 == -1) tst_brkm(TFAIL|TERRNO, NULL, "shmget failed"); - tst_resm(TINFO, "Cont1: Able to create shared mem segment"); write(p1[1], "done", 5); + tst_resm(TINFO, "Cont1: Able to create shared mem segment"); tst_exit(); } -- 1.7.1 -- Best Regards, Peng ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Ltp-list mailing list Ltp-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ltp-list