http://bugs.winehq.org/show_bug.cgi?id=34041
--- Comment #11 from Ken Thomases ken@codeweavers.com 2013-09-16 17:15:30 CDT --- Hmm. The sample report you attached is for a Skyrim.app. I'm guessing you're using some sort of wrapper, like Wineskin. First, if that wrapper has any custom patches rather than using vanilla Wine, we won't be able to help you here.
Second, you sampled the wrong process. You sampled process 215, which is the one running Steam.
Given that Skyrim itself is failing to exit, the process to sample is the one that the "ps xww | grep wine" command shows running TESV.exe and whose command line does _not_ start with "/bin/sh". So, in your attachment 45973, it would have been process 439 (although, of course, it changes each time).
Sorry for not noticing that earlier.
Please collect another sample, this time for the TESV.exe process. Thanks.