https://bugs.winehq.org/show_bug.cgi?id=39477
--- Comment #12 from Andrew Eikum aeikum@codeweavers.com --- Oh! I've seen this before. The problem is you're running out of memory:
mmap() failed: Cannot allocate memory
Wine reserves a bunch of memory, and then STO is likely using lots of memory. On top of that, Pulse tries to allocate 64 MB of memory, which is a lot. In your particular arrangement, this allocation fails and shows the above message and then crashes. None of this is really a "bug," per se, we've just run out of 32-bit address space.
You can work around this by asking Pulse to use less memory. In </etc/pulse/daemon.conf>, see these lines:
; enable-shm = yes ; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
In the past, we've recommended setting shm-size-bytes to 1048576. You can find (mostly useless) descriptions of these options in the pulse-daemon.conf(5) manpage.