write(49, "GIF89a\t\0\t\0\221\3\0\330Z\0\375\203,\364f\0\377\377\377"..., 63) = 63
socketpair(PF_FILE, SOCK_STREAM, 0, [63, 65]) = 0
fcntl64(63, F_GETFL)                    = 0x2 (flags O_RDWR)
fcntl64(63, F_SETFL, O_RDWR|O_NONBLOCK) = 0
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
poll([{fd=46, events=POLLRDNORM, revents=POLLRDNORM}, {fd=63, events=POLLRDNORM}], 2, -1) = 1
read(63, 0xbfa4be20, 4)                 = -1 EAGAIN (Resource temporarily unavailable)
read(63, 0xbfa4be20, 4)                 = -1 EAGAIN (Resource temporarily unavailable)
read(63, 0xbfa4be20, 4)                 = -1 EAGAIN (Resource temporarily unavailable)
read(63, 0xbfa4be20, 4)                 = -1 EAGAIN (Resource temporarily unavailable)
^^ ad infinitum