opensourcerouting/quagga — pull request #1 by gpstrive (2012-11-22 01:01:36+00:00)
Title: Set macro NL_PKT_BUF_SIZE to 8192

see the NLMSG_GOODSIZE definition of linux in include/linux/netlink.h for detail;
On platform whose pagesize greater than 8192, if you have added too many interfaces,
zebra will get overflow which result in getting incomplete interface list.