1 syscall                    syscall.S        37   0x753fc0e0 
2 g_cond_wait                gthread-posix.c  1402 0x75223bc0 
3 gst_task_func              gsttask.c        317  0x6b93da2c 
4 g_thread_pool_thread_proxy gthreadpool.c    307  0x75209538 
5 g_thread_proxy             gthread.c        784  0x75208c94 
6 start_thread               pthread_create.c 458  0x7560d4a0 
7 ??                         clone.S          76   0x753fe80c