With a Xen guest on rawhide using this pv_ops based kernel:

  http://koji.fedoraproject.org/koji/taskinfo?taskID=455742

we get this segault in kudzu:

  Program received signal SIGSEGV, Segmentation fault.
  0x080575d9 in outb (value=0 '\0', port=992) at /usr/include/sys/io.h:99
  99        __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
  (gdb) bt
  #0  0x080575d9 in outb (value=0 '\0', port=992) at /usr/include/sys/io.h:99
  #1  0x0805759a in i365_get (sock=0, reg=0) at misc.c:79
  #2  0x080582d7 in miscProbe (probeClass=CLASS_UNSPEC, probeFlags=1, 
      devlist=0x808e2f0) at misc.c:314
  #3  0x0804fbf4 in probeDevices (probeClass=CLASS_UNSPEC, probeBus=-9, 
      probeFlags=1) at kudzu.c:878
  #4  0x0804c731 in main (argc=1, argv=0xbfd08384) at hwconf.c:839

notting's comment on this a while back was:

    <notting>       oh that's right. the code probing for ancient pre-cardbus
pcmcia controllers
    <notting>       hm, that can probably be taken out ;)
    <notting>       especially because we build them in