prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000000))
signalfd4(0xffffffffffffffff, &(0x7f00000001c0), 0x8, 0x0)
pselect6(0x40, &(0x7f0000000240), &(0x7f0000000280)={0x8}, 0x0, &(0x7f0000000300), 0x0)