msva-perl causes trouble when used with gnome-session and seahorse
It appears that "some processes fare pretty badly when spawned from an msva-perl instance":http://bugs.debian.org/585506 , apparently due to SIGCHLD being ignored.
Although processes which rely on SIGCHLD being handled in the default fashion should probably explicitly ensure that it is set that way, we should probably not leave SIGCHLD masked in the exec'ed subprocess.
(from redmine: created on 2010-06-16, closed on 2010-06-16)