I hope the devs can get some info out of the stacktrace - for now I'd call this solved/not Factorio's fault.

The only info I can get from the stack trace is "It's not crashing in any code we control" which means there's little/nothing we can do about it - sorry.
Yep, seems that way. Thanks for ...

Update:
The problem seems to apply to other programs as well (I had a similar problem with tuxguitar right now)
And it seems to be nondeterministic: Right now Factorio is running without JACK, with working sound.
The sound seems to be pitched and slowed down though... Also not every time

I hope ...

My setup:
Archlinux, kernel version 4.8.13
CPU: i5-6600K
GPU: Radeon R9 390 (using open source radeon driver)
Audio interface: Focusrite Scarlett 2i2, normally using Pulseaudio, recording with JACK

The game ran fine before I configured my recording setup this weekend.
Now the game crashes with the ...