I have setup kdm to auto-login. Sometimes (maybe if I do not unlock within a few minutes after login?) it happens, that kwin crashes without me having interacted with the computer in any way (besides pressing the power button when it was cold). Reproducible: Always
Created attachment 78166 [details] kcrash report
(Because KWin was down, I was not able to interact with DrKonqi and KWallet properly, hence I only saved the report to attach it here.)
*** This bug has been marked as a duplicate of bug 315897 ***