Version: 1.5.2 (using KDE 3.5.2, Gentoo) Compiler: gcc version 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8) OS: Linux (i686) release 2.6.15-gentoo-r2 Howdy Using out of the box install of KDE 3.5.2 and Umbrello 1.5.2 (-o2 -pipe march=athlon-xp) nothing wild :) Basically if you add/alter or delete attributes then click ok/apply it takes longer and longer for the application to become responsive (eg being able to click things, move diagrams) and after 3 or more times clicking ok/apply the application locks up and seems to sit in an infinite loop allocating memory and hence memory leak. If one turns off "undo" the problem disappears.
*** Bug 127769 has been marked as a duplicate of this bug. ***
Tried hard with umbrello >= 1.5.71, nothing bad happens.