Comment 1 for bug 1182698

Another strace output from customer:

poll([{fd=22, events=POLLIN|POLLPRI}], 1, 0) = 0 (Timeout)
write(22, "\34\0\0\0\3select 'xtrabackup ping 15'", 32) = 32
read(22, "\1\0\0\1\1(\0\0\2\3def\0\0\0\22xtrabackup ping"..., 16384) = 90
write(21, "main::start_keepalives(/usr/bin/"..., 85) = 85
write(21, "\33[4m[pid=17664->17669] DB<1> \33["..., 39) = 39
read(11, 0x7fdeb6cf7000, 8192) = -1 EIO (Input/output error)
write(21, "\33[0m", 4) = 4
write(21, "main::start_keepalives(/usr/bin/"..., 91) = 91
write(21, "\33[4m[pid=17664->17669] DB<1> \33["..., 39) = 39
read(11, 0x7fdeb6cf7000, 8192) = -1 EIO (Input/output error)