SPIFFS 引起ESP32 反复启动怎么办？

各位好。
有一个简单的 SPIFFS 管理程序，上传到 ESP32-WROOM 后导致反复启动， 确实也列出了 SPIFFS 文件，但是反复列出，其他程序没有这个问题，应该怎么办？
谢谢。

  
#include "SPIFFS.h"
 
void listAllFiles(){
 
  File root = SPIFFS.open("/");
 
  File file = root.openNextFile();
 
  while(file){
 
      Serial.print("FILE: ");
      Serial.println(file.name());
 
      file = root.openNextFile();
  }
 
}
 
void setup() {
 
  Serial.begin(115200);
 
  if (!SPIFFS.begin(true)) {
    Serial.println("An Error has occurred while mounting SPIFFS");
    return;
  }
 
  File file = SPIFFS.open("/test.txt", FILE_WRITE);
 
  if (!file) {
    Serial.println("There was an error opening the file for writing");
    return;
  }
 
  if (file.print("some content")) {
    Serial.println("File was written");
  } else {
    Serial.println("File write failed");
  }
 
  file.close();
 
  Serial.println("\n\n---BEFORE RENAMING---");
  listAllFiles();
 
  SPIFFS.rename("/test.txt", "/renamed.txt");
 
  Serial.println("\n\n---AFTER RENAMING---");
  listAllFiles();
 
}
 
void loop() {}


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ERROR:

12:49:57.010 -> ELF file SHA256: 0000000000000000
12:49:57.010 -> 
12:49:57.010 -> Rebooting...
12:49:57.010 -> ets Jul 29 2019 12:21:46
12:49:57.010 -> 
12:49:57.010 -> rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
12:49:57.010 -> configsip: 0, SPIWP:0xee
12:49:57.010 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
12:49:57.010 -> mode:DIO, clock div:2
12:49:57.010 -> load:0x3fff0030,len:1344
12:49:57.010 -> load:0x40078000,len:13836
12:49:57.010 -> load:0x40080400,len:3608
12:49:57.010 -> entry 0x400805f0
12:49:57.247 -> File was written
12:49:57.247 -> 
12:49:57.247 -> 
12:49:57.247 -> ---BEFORE RENAMING---
12:49:57.315 -> FILE: hello.txt
12:49:57.349 -> FILE: renamed.txt
12:49:57.349 -> FILE: test.txt
12:49:57.383 -> 
12:49:57.383 -> 
12:49:57.383 -> ---AFTER RENAMING---
12:49:57.485 -> FILE: hello.txt
12:49:57.485 -> FILE: renamed.txt
12:49:57.485 -> FILE: test.txt
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