sysinstall fails when adding distributions

[Kristaps Kūlis]

Hi,
 On FreeBSD 8.1-RELEASE (i386) on IBM T43, sysinstall fails when trying to
add src distribution to already installed system (when starting to download
them from FTP). No network activity is observed.
coredump: http://www.ltn.lv/~kristapskulis/sysinstall.core
dmesg: http://www.ltn.lv/~kristapskulis/dmesg

 What I`m doing wrong and how to fix it ?

Kristaps Kūlis