Thread 3 (Thread 0x7f89a3177700 (LWP 3100)):
#0  0x00007f89ac1b3d40 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f89a624e923 in cnd_wait (mtx=0x1339958, cond=<optimized out>) at ../../../../include/c11/threads_posix.h:154
#2  pipe_semaphore_wait (sema=0x1339958) at ../../../../src/gallium/auxiliary/os/os_thread.h:248
#3  thread_function (init_data=init_data@entry=0x13398b8) at lp_rast.c:761
#4  0x00007f89a624e187 in impl_thrd_routine (p=<optimized out>) at ../../../../include/c11/threads_posix.h:87
#5  0x00007f89ac1ae66a in start_thread () from /lib64/libpthread.so.0
#6  0x00007f89ac4cb84d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x7f89a2976700 (LWP 3101)):
#0  0x00007f89ac1b3d40 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f89a624e923 in cnd_wait (mtx=0x1339ab8, cond=<optimized out>) at ../../../../include/c11/threads_posix.h:154
#2  pipe_semaphore_wait (sema=0x1339ab8) at ../../../../src/gallium/auxiliary/os/os_thread.h:248
#3  thread_function (init_data=init_data@entry=0x1339a18) at lp_rast.c:761
#4  0x00007f89a624e187 in impl_thrd_routine (p=<optimized out>) at ../../../../include/c11/threads_posix.h:87
#5  0x00007f89ac1ae66a in start_thread () from /lib64/libpthread.so.0
#6  0x00007f89ac4cb84d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x7f89ae9fc9c0 (LWP 3096)):
#0  0x00007f89ac4c20a3 in select () from /lib64/libc.so.6
#1  0x00000000005957d4 in WaitForSomething ()
#2  0x0000000000438f51 in Dispatch ()
#3  0x000000000043d2d6 in dix_main ()
#4  0x00007f89ac3e49e0 in __libc_start_main () from /lib64/libc.so.6
#5  0x00000000004276f9 in _start ()
