https://bugs.winehq.org/show_bug.cgi?id=37178
--- Comment #2 from Luke lukebenes@hotmail.com --- Wine gives a err:seh:setup_exception_record stack overflow 2128 bytes in thread 00ce eip 7bc5e05a esp 46c40ae0 stack 0x46c40000-0x46c41000-0x46d40000
Don't you need a crash for the back trace? Dota 2 freezes. I had a virgin install of Kubuntu 14.4 on another partition, so I installed wine from ppa:ubuntu-wine/ppa and used the default Mesa version of Mesa 10.1.3. Dota 2 froze at the same point, after I selected a hero.
Also noticed that another way to trigger this bug is by previewing an item from your armory or the store.