;; :TIMEOUT NIL to the frame we expect. If we leave it out,
;; the backtrace is fine -- but the test fails. I can only
;; boggle right now.
- :fails-on :darwin)
+ :fails-on '(or (and :x86 :linux) :darwin))
(let ((m (sb-thread:make-mutex))
(q (sb-thread:make-waitqueue)))
(assert (verify-backtrace