I've gotten the blinky app up on the Arduino Zero Pro, and just for fun, I 
enabled the Console and shell, hooked it up to my FT232H and got ...

200976:Assert ; failed in os_eventq.c:314
200976:Unhandled interrupt (2), exception sp 0x20007f48
200976: r0:0x00000000  r1:0x00000000  r2:0x80000000  r3:0xe000ed00
200976: r4:0x00000000  r5:0x0000013a  r6:0x00016200  r7:0x00000003
200976: r8:0x000927c0  r9:0x0000ca61 r10:0xbffd8dd3 r11:0xd6beeff1
200976:r12:0xfffff7fe  lr:0x0000d1bd  pc:0x0000d1ca psr:0x8100001b
200976:ICSR:0x0440f002

Now, the blinky app is still running just fine, but from os_eventq.c, line 314:

if (*evq == NULL) {
        eventq_dflt = os_eventq_dflt_get();
        if (eventq_dflt != NULL) {
            os_eventq_designate(evq, eventq_dflt, start_ev);
        }

        /* The system is misconfigured if there is still no parent eventq.  The
         * application should have explicitly specified a parent queue for each
         * package, or indicated a default.
         */
        assert(*evq != NULL);

--
David G. Simmons
(919) 534-5099
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