r0 = mq_open(&(0x7f0000005c00)='-@\x00', 0x0, 0x0, 0x0) mq_notify(r0, &(0x7f0000000000)={0x0, 0x0, 0x0, @tid=0xffffffffffffffff}) read(r0, 0x0, 0x0)