From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1So3pB-0001yO-UH for ltp-list@lists.sourceforge.net; Mon, 09 Jul 2012 02:35:45 +0000 Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1So3pB-0002Qk-3v for ltp-list@lists.sourceforge.net; Mon, 09 Jul 2012 02:35:45 +0000 Message-ID: <4FFA435B.2030808@cn.fujitsu.com> Date: Mon, 09 Jul 2012 10:35:07 +0800 From: Wanlong Gao MIME-Version: 1.0 References: <1341309599-10008-1-git-send-email-kai.kang@windriver.com> In-Reply-To: <1341309599-10008-1-git-send-email-kai.kang@windriver.com> Subject: Re: [LTP] [PATCH] pthread_cond_signal/1-1: fails on routerstation Reply-To: gaowanlong@cn.fujitsu.com 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: Kang Kai Cc: ltp-list@lists.sourceforge.net On 07/03/2012 05:59 PM, Kang Kai wrote: > Case pthread_cond_signal/1-1 fails on routerstation. The OS is Yocto > linux 1.2 with kernel 3.0.24, and c library is eglibc 2.15. > > The fail log: > [Thread 0x0x2c56d4b0] started and locked the mutex > [Thread 0x0x2c56d4b0] is waiting for the cond > [Thread 0x0x2bd6d4b0] started and locked the mutex > [Thread 0x0x2bd6d4b0] is waiting for the cond > [Thread 0x0x2b56d4b0] started and locked the mutex > [Thread 0x0x2b56d4b0] is waiting for the cond > [Main thread] signals a condition > [Thread 0x0x2c56d4b0] was wakened and acquired the mutex again > [Thread 0x0x2c56d4b0] released the mutex > [Main thread] 1 waiters were wakened > [Main thread] signals to wake up the next thread > [Thread 0x0x2bd6d4b0] was wakened and acquired the mutex again > [Thread 0x0x2bd6d4b0] released the mutex > [Main thread] signals to wake up the next thread > [Main thread] signals to wake up the next thread > [Main thread] signals to wake up the next thread > [Main thread] signals to wake up the next thread > [Main thread] signals to wake up the next thread > [Thread 0x0x2b56d4b0] was wakened and acquired the mutex again > [Main thread] had to signal the condition 7 times > [Main thread] to wake up 3 threads > . Test FAILED. > > The main thread call pthread_cond_signal try to signal the child threads > those are waiting on the condition, then call usleep(100) to relinquish > the cpu. But 100 useconds is not enough and the main thread continue to > run. So the case fails. > > Increase the sleep timeto 1000 useconds to make the case pass. > > Signed-off-by: Kang Kai > --- > .../interfaces/pthread_cond_signal/1-1.c | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/testcases/open_posix_testsuite/conformance/interfaces/pthread_cond_signal/1-1.c b/testcases/open_posix_testsuite/conformance/interfaces/pthread_cond_signal/1-1.c > index bf55b31..910931d 100644 > --- a/testcases/open_posix_testsuite/conformance/interfaces/pthread_cond_signal/1-1.c > +++ b/testcases/open_posix_testsuite/conformance/interfaces/pthread_cond_signal/1-1.c > @@ -142,7 +142,7 @@ int main() > fprintf(stderr,"Main failed to signal the condition\n"); > exit(PTS_UNRESOLVED); > } > - usleep(100); > + usleep(1000); Anyway, just add the hard sleep time can resolve nothing. Maybe you can find a better way. Thanks, Wanlong Gao > } > > if (i >= THREAD_NUM) { > @@ -160,4 +160,4 @@ int main() > } > printf("Test PASSED\n"); > return PTS_PASS; > -} > \ No newline at end of file > +} > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Ltp-list mailing list Ltp-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ltp-list