https://bugs.freedesktop.org/show_bug.cgi?id=75732
--- Comment #5 from Michel Dänzer michel@daenzer.net --- (In reply to comment #4)
[...] since valgrinding 32 bit WoW on a 64 bit box is currently beyond me,
As suggested in your WoW bug report, please try valgrind on replaying an apitrace instead.
I am hunting for memory errors in other workloads instead, in the hope that they might provide some insight.)
valgrind finds one 352 byte leak with celestia. That can't possibly explain the issues you're having with WoW.