"If you aren't using the C foreign function interface, of course."
Yeah that phase actually performs stemming as well using the FFI. For a long time that was my prime suspect, but I have never been able to get stemming to segfault in isolation, either within arc or from a C program. And I have been able to get my program to segfault without the stemming.
You're right, I'll take another stab at a test case. And I'll not try so hard to make it tiny.
