xscreensaver does not protect the system against its children

Xscreensaver should set the oom killer to preferentially attack its children.
See, for example this bug:
https://bugs.launchpad.net/ubuntu/+source/xscreensaver/+bug/768032
where a screensaver (gltext) leaks memory and eventually renders the system inoperable. It's a real problem: it's just frozen several of my computers.

The thing is, a screensaver is *NOT* a critically important part of the system. It should die early if it is a resource hog. All you have to do is write "10" into /proc/PID/oom_adj and Bob's your uncle. Until then, Xscreensaver is failing its duties.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xscreensaver 5.12-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
Date: Fri Jul 8 20:40:44 2011
InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: xscreensaver
UpgradeStatus: No upgrade log present (probably fresh install)