On Tue, Jun 28, 2016 at 2:04 AM, Haomai Wang <haomai@xxxxxxxx> wrote: > Hi all, > > anyone who knows what's the special thing with TmapMigratePP.DataScan > case. When I introduce thread_local variable in > PR(https://github.com/ceph/ceph/pull/9783/files#diff-254a8401d238ec25c714a5596f85b5ebL64), > it always failed because the thread local variable is assigned to zero > when execute this test! > thread_local is not portable. In your case, using thread_local variable is not necessary, you can use pthread_self() directly. As I know pthread_self() return 0 if the program isn't linked to libpthread.so > For example, when tid == 512596224 local_center should be 5fed4e48, > but after begin this test case, this thread_local variable is assigned > to zero!: > tid=-512596224 local_center=5fed4e48 this=5fed4e48 > [New Thread 0x7fffdef21700 (LWP 11835)] > tid=-512596224 local_center=5fed4e48 this=5fed4e48 > [New Thread 0x7fffde720700 (LWP 11836)] > [New Thread 0x7fffddf1f700 (LWP 11837)] > [New Thread 0x7fffdd71e700 (LWP 11838)] > [New Thread 0x7fffdcf1d700 (LWP 11839)] > [New Thread 0x7fffdc71c700 (LWP 11840)] > [New Thread 0x7fffdbf1b700 (LWP 11841)] > tid=-134366272 local_center=0 this=5fed4e48 > tid=-134366272 local_center=0 this=5fed4e48 > tid=-134366272 local_center=0 this=5fed4e48 > tid=-512596224 local_center=0 this=5fed4e48 > > > QA job:http://qa-proxy.ceph.com/teuthology/haomai-2016-06-27_03:55:04-rados-wip-haomai-testing---basic-smithi/279412/teuthology.log > > This can be repeated locally and I want to know what's the difference > this case introduced > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
