getifaddrs calls abort() when interrupted

[Sten Spans]

getifaddrs is a function to fetch a list of network interfaces. The version provided by eglibc in lucid and earlier has a know bug where it will call abort() when interfaces are added/removed during the getifaddrs operation. This is somewhat problematic because it will cause daemons to exit, and can be triggerd by for example stopping / starting virtual machines. This problem has been seen under real-world conditions and will lead to the following gdb trace:

#0 0x00007fd2727604b5 in *__GI_raise (sig=<value optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007fd272763f50 in *__GI_abort () at abort.c:92
#2 0x00007fd27282e9d8 in map_newlink (ifap=<value optimized out>)
    at ../sysdeps/unix/sysv/linux/ifaddrs.c:320
#3 *__GI_getifaddrs (ifap=<value optimized out>)
    at ../sysdeps/unix/sysv/linux/ifaddrs.c:751
#4 0x0000000000407987 in netif_fetch (ifc=<value optimized out>,
    ifl=<value optimized out>, sysinfo=0x616c40, netifs=0x616c20)
    at netif.c:140

The upstream fix is at: http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b8b14c4cc38883032b8ebae50c9a8b3efd256483
The upstream bug is at: http://sourceware.org/bugzilla/show_bug.cgi?id=11387

ii libc6 2.11.1-0ubuntu7 Embedded GNU C Library: Shared libraries
Description: Ubuntu 10.04 LTS
Release: 10.04