I'm trying to debug an annoying bug in ksmserver that happens sometimes leads to it's crash and logout process break. Main trouble that it happens randomly, i can repeat 10 logouts in a row without issues, and next one will be broken. One thing what i've noticed that crash happens when some application didn't respond in time and buttons "Skip notification" and "Cancel logout" appears in the shutdown process window. I've also tested the logout with some SIGSTOP'ped apps and have no issues.

That gives me a naive idea, that there have place some race condition and when ksmserver is processing some "client" record, and in the same time corresponding application is finishing it's work that leads to deleting that "client" record, but i'm too newbie in the X transport and other things so i may be wrong.

Here are 3 valid backtraces, due to reproducing instability i can't collect more for this time. Maybe someone will have some idea about this bug or methods to more stable reproduce?

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