Which test(s) do you see triggering a segfault?

I see just 4 of the new tests failing on the unpatched
core-8-6-branch tip:

coroutine-9.1b-nc
coroutine-9.2b-nc
tailcall-15.1b-nc
tailcall-15.2b-nc

Should I see something different?

It appears those are the only tests engineered to
operate at toplevel in normal test suite operations.