Bad stack trace.
Unfortunately since rc is a shell script, segfaulting should be
impossible - and it's not possible to determine what actually crashed
without a good trace.
Thanks for the report, if it happens again, please do file a new bug and
hopefully the stack trace from that will be useful.
** Attachment added: "CoreDump.gz"
http://launchpadlibrarian.net/12061102/CoreDump.gz
** Attachment added: "Disassembly.txt"
http://launchpadlibrarian.net/12061103/Disassembly.txt
** Attachment added: "ProcMaps.txt"
http://launchpadlibrarian.net/12061104/ProcMaps.txt
** Attachment adde
