Re: 3608904
The deadlocked process is sometimes unkillable, and although it does not use much CPU or memory it retains a display and hogs the event loop, slowing down all other interactive applications on the machine (e.g. it takes a minute to open a terminal). It can be terminated only by a reboot.
I am sorry to create a duplicate bug for this; however comments have been disabled for 3608904 which makes it impossible to add this information there.
IMHO "Wont Fix" bugs should not be closed or have comments disabled - if we are lucky someone else might provide useful information or even a fix.
Opening another bug report is not a problem. We've got billions of bug IDs before we hit any sort of limit…
For information in case anyone lands here:
The event loop bug is no. 3028676 and is still open, though it is "Wont Fix":
https://sourceforge.net/tracker/?func=detail&aid=3028676&group_id=12997&atid=112997
The discussion of the difficulty of the Cocoa/Tk event loop integration is here:
http://tcl.2662.n7.nabble.com/How-to-move-forward-with-Tk-Cocoa-event-loop-issues-td57726.html