strace: Process 8000 attached with 5 threads [pid 8006] futex(0x17af374, FUTEX_WAIT_PRIVATE, 529, NULL [pid 8005] futex(0x17af304, FUTEX_WAIT_PRIVATE, 533, NULL [pid 8004] futex(0x17af294, FUTEX_WAIT_PRIVATE, 669, NULL [pid 8012] write(18, "\0", 1 [pid 8000] ioctl(12, DRM_IOCTL_I915_GEM_THROTTLE or DRM_IOCTL_RADEON_CP_RESUME [pid 8012] <... write resumed> ) = 1 [pid 8012] epoll_wait(21, strace: Process 8000 detached strace: Process 8004 detached strace: Process 8005 detached strace: Process 8006 detached strace: Process 8012 detached