30 柿饼派，pm.setStorageSync()多次调用内存溢出。

发布于 2021-03-17 09:25:39 浏览：1074 订阅该版

项目通过串口联通stm32上的rtthread与柿饼派，通过发送json消息来传递格式化数据。
柿饼派收到后刷新显示，并且存储为当前值，这样开机的时候可以显示上一次采集数据。但是发现发送长度为2000左右的数据在调用30多次后会报日下错误。
```
Error: ERR_OUT_OF_MEMORY
jerryScritp fatal [ ERR_OUT_OF_MEMORY ]...
Heap stats:
  Heap size = 524248 bytes
  Allocated = 523728 bytes
  Peak allocated = 524248 bytes
  Waste = 0 bytes
  Peak waste = 0 bytes
  Allocated byte code data = 1960 bytes
  Peak allocated byte code data = 2128 bytes
  Allocated string data = 98051 bytes
  Peak allocated string data = 98071 bytes
  Allocated object data = 15976 bytes
  Peak allocated object data = 17072 bytes
  Allocated property data = 66256 bytes
  Peak allocated property data = 66560 bytes
(0) assertion failed at function:jerry_port_fatal, line number:67 
[W/WDTMGR] wdtmgr wdt timeout
[W/WDTMGR] rt_thread_self : persim

thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
wifi_xfe   9  suspend 0x000000f8 0x00000800    13%   0x00000011 000
wifi_han   8  suspend 0x000000c0 0x00000800    09%   0x00000014 000
js_seria  20  ready   0x000000c0 0x00001000    04%   0x00000003 -02
cbq_thre  18  suspend 0x00000068 0x00000800    05%   0x0000000a 000
player_w  15  suspend 0x00000070 0x00000800    05%   0x0000000a 000
player     2  suspend 0x000000c0 0x00001000    04%   0x00000014 000
ns_worke  20  suspend 0x00000070 0x00002000    01%   0x0000000a 000
wdtMgr    30  ready   0x000000a4 0x00000200    32%   0x00000009 000
persim    16  ready   0x000009b8 0x00008000    10%   0x00000003 000
tshell    20  suspend 0x00000118 0x00001000    06%   0x0000000a 000
touch     16  ready   0x00000130 0x00000800    17%   0x00000014 000
winusb     6  suspend 0x000002ec 0x00004000    04%   0x00000014 000
adc_key   30  ready   0x00000198 0x00000400    39%   0x00000006 -02
rtgui     17  ready   0x00000100 0x00000800    12%   0x0000000a -02
workqueu  28  suspend 0x00000070 0x00000400    67%   0x00000006 000
sd        21  ready   0x00000080 0x00001000    04%   0x00000009 -02
ntp_sync  26  suspend 0x00000078 0x00000600    32%   0x00000002 000
js_user   21  suspend 0x000000a0 0x00001000    03%   0x0000000a 000
usbd       8  suspend 0x00000114 0x00001000    06%   0x00000014 000
wlan_job  22  suspend 0x00000070 0x00000800    05%   0x0000000a 000
mmcsd_de  22  suspend 0x000000a8 0x00000400    16%   0x00000014 000
tcpip     10  suspend 0x000000d8 0x00000400    43%   0x00000014 000
etx       12  suspend 0x0000009c 0x00000400    17%   0x00000010 000
erx       12  suspend 0x000000a4 0x00000400    16%   0x00000010 000
tidle     31  ready   0x00000060 0x00000800    05%   0x00000019 000

```

并且将json缩小到500多运行160余此次后也会出现这个情况。注释kv存储可以正常运行800多次无异常。调用方法如下
```
pm.setStorageSync('last_check', last_check_json);
```
其中last_check_json为json对象