r0 = fork()
waitid(0x2, r0, &(0x7f0000000780), 0x1000000, &(0x7f00000006c0))
ptrace(0x10, r0)
mq_notify(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x1b, 0x0, @tid=r0})
ptrace$getregset(0x4204, r0, 0x3, &(0x7f0000000540)={&(0x7f0000000140)=""/24, 0x18})