prctl$PR_MCE_KILL(0x21, 0x0, 0x1) ptrace$cont(0x9, 0x0, 0x7fff, 0x4) r0 = fork() ptrace$setsig(0x4203, r0, 0x8, &(0x7f0000000000)={0x7, 0x10000}) ptrace$setsig(0x4203, 0x0, 0x5, 0x0) ptrace$getsig(0x4202, 0x0, 0xfffffffffffffffb, &(0x7f0000000100)) r1 = fork() ioprio_get$pid(0x0, r1)