Various gnome applications (eog, gcalctool and gedit have so far been tested) can cause IceWMs memory usage to increase by simply opening and closing the application. The attached screenshots show IceWM memory useage before and after opening and closing eog 50 times. Attached also is a valgrind log from opening and closing eog once. After 24 hours of opening and closing eog every 2 seconds, IceWM almost completely occupied system ram, the system was heavily hitting swap and unusable.
xfdesktop 4 does not produce the same behaviour so am assuming this is an issue with IceWM
As the valgrind log is too large to attach, it can be obtained from http://dl.dropbox.com/u/11606706/Bugs/icewm-mem.tar.gz