FiPy: Latest 1.12.0b1: Core dump when executing uos.uname()

[robert-hh]

Fresh downloaded repository & updated esp-idf
Build for FiPy, device erased before flashing. Executing

import uos
uos.uname()

causes a core dump.

>>> import uos
>>> uos.uname()
(sysname='FiPy', nodename='FiPy', release='1.12.0.b1', version='2841220 on 2018-01-04', machine='FiPy with ESP32', lorawan='1.0.0', Guru Meditation Error of type LoadProhibited occurred on core  0. Exception was unhandled.
Register dump:
PC      : 0x400ea0b7  PS      : 0x00060330  A0      : 0x800ea36c  A1      : 0x3ffd73c0  
A2      : 0x656d64a1  A3      : 0x3f40989d  A4      : 0x00000000  A5      : 0x3ffd7440  
A6      : 0x00000000  A7      : 0x00000002  A8      : 0xd536f8d4  A9      : 0x000004d3  
A10     : 0x00000002  A11     : 0x3f40989b  A12     : 0x00000002  A13     : 0x3ffd7440  
A14     : 0x400f89bc  A15     : 0x00000001  SAR     : 0x0000001e  EXCCAUSE: 0x0000001c  
EXCVADDR: 0xd536f8e4  LBEG    : 0x40098f85  LEND    : 0x40098f95  LCOUNT  : 0xffffffff  

Backtrace: 0x400ea0b7:0x3ffd73c0 0x400ea369:0x3ffd73e0 0x400eadf1:0x3ffd7400 0x400eaf69:0x3ffd7460 0x400f2553:0x3ffd74b0 0x400f2581:0x3ffd74d0 0x400f180f:0x3ffd74f0 0x400f97b8:0x3ffd7510 0x400f393d:0x3ffd7540 0x400f0385:0x3ffd7560 0x400fb5e7:0x3ffd7580 0x400f3a4c:0x3ffd7620 0x400f0385:0x3ffd76a0 0x400f03b2:0x3ffd76c0 0x400dda7f:0x3ffd76e0 0x400ddd04:0x3ffd7780 0x400dcc79:0x3ffd77c0

For LoPy, it works fine.

[robert-hh]

fixed. Thank you.