zynq-uboot> bootelf
## Starting application at 0x1ff00000 ...
  | /
- RT -     Thread Operating System
 / |      2.1.0 build Sep  7 2017
 2006 - 2016 Copyright by rt-thread team
data abort:Execption:
r00:0x1ff2b315 r01:0x1ff1f591 r02:0x80000000 r03:0x0000006d
r04:0x1ff1f588 r05:0x0000000b r06:0x1ff2b30c r07:0x00000000
r08:0x00000000 r09:0x00000000 r10:0x00000000
fp :0x1ff2b2dc ip :0x1ff2b30c
sp :0x1ff2b2b8 lr :0x1ff1df13 pc :0x1ff1d442
cpsr:0xa0000033
 thread  pri  status      sp     stack size max used   left tick  error
-------- ---- ------- ---------- ---------- ---------- ---------- ---
tidle    0x1f ready   0x00000040 0x00000200 0x00000040 0x00000020 000
init     0x0a ready   0x00000040 0x00000800 0x00000160 0x00000013 000
shutdown...
(0) assertion failed at function:rt_hw_cpu_shutdown, line number:42