(#_new QFileDialog) segfaults SBCL

[stassats]

(progn (qt:make-qapplication) (qt:optimized-new "QFileDialog"))
CORRUPTION WARNING in SBCL pid 21299(tid 140737009362688):
Received signal 11 in non-lisp thread 140737009362688, resignalling to a lisp thread.
The integrity of this image is possibly compromised.
Continuing with fingers crossed.
zsh: segmentation fault sbcl

While it works fine on CCL (including calling exec on it).

[stassats]

I now see that it creates threads, on CCL appears a thread called "Foreign thread callback".