Here is the gdb backtrace from nautilus-cd-burner with gnomevfs symbols installed. It is quite a bit more informative. In particular, it seems to be stuck opening the directory "/Aladdin/aka-home/Cookies" which is a backup copy of (old) IE cookies. There are 3466 small files in that directory.
The mapping-daemon trace is essentially identical so I am not attaching another copy. HtH, Ted ** Attachment added: "gdb backtrace of hung nautilus-cd-burner process" http://librarian.launchpad.net/5765022/gdb-nautilus-cd-burner.txt -- GNOME CD burner hangs on "Write to Disc" dialog https://launchpad.net/bugs/69411 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs