致命python错误：（pygame降落伞）分割错误

Question

我对覆盆子pi和python都相当陌生。我已经写了一个代码来分析图像，但我不断收到致命的python错误：（pygame parachute）Segmentation Fault。它通常发生在我的程序中15分钟到1小时之间。从我读过的内容来看，这通常是某种记忆超越问题。我还没有找到任何能够解决我的问题的具体答案。这是我的代码。请帮忙。有没有人有任何建议如何解决或调试这个问题？

import cv2 
from SimpleCV import Image, Camera 
import time 
import os 
import RPi.GPIO as GPIO 

T = 1 
z = 0 

GPIO.setwarnings(False) 
GPIO.setmode(GPIO.BOARD) 
GPIO.setup(31, GPIO.OUT) 
GPIO.setup(32, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) 

GPIO.output(31,GPIO.HIGH) 
cam = Camera(prop_set={'width':320, 'height':240}) 
while(T): 

    w = [0 in range(9)] 

    if(GPIO.input(32)): 
     start = 80 
     pixel = 0 
     end = 225 
     time.sleep(0.32) 
     img = cam.getImage() 
     img.save('original.jpg') 
     edges = cv2.imread('original.jpg') 

     edges = cv2.Canny(edges,90,210) 
     print("hola") 
     for y in range (100,160): 
      i = 0 
      first = 0 
      temp = 0 
      last = 0 
      for x in range (start, end): 
       pixel = edges[y,x] 

       if (pixel >=120 and first == 0): 
        first = x 


       if (pixel >=120 and first != 0 and last < x): 
        last = x 

      if last != 0: 
       temp = last - first 
       for x in range(start, end): 
        if ((x <= last) and (x >=first)): 
         edges[y,x] = 140; 

     while(GPIO.input(32)): 
      pass 

我不知道是什么的大部分意思，但如果我运行（GDB）程序，并做了回溯我得到这个...

(gdb) bt 
#0 0x000835f4 in PyEval_EvalFrameEx() 
#1 0x00081ca4 in PyEval_EvalCodeEx() 
#2 0x000c37c4 in ??() 
Backtrace stopped: previous frame identical to this frame (corrupt stack?) 

今天我发现，如果我做的一切都是进口SimpleCV，图像和摄像头，然后打开摄像头和进入无限循环，我仍然得到分割故障

(gdb) bt 
#0 0x00087024 in PyEval_EvalFrameEx() 
#1 0x000840cc in PyEval_EvalFrameEx() 
#2 0x000a4520 in ??() 

如果我使用pygame的拍摄照片，做一个回溯，我得到一个分割故障稍微多一些inf ormation

#0 0x0006de50 in PyErr_Format() 
#1 0x70952ee0 in v412_read_frame() from /usr/lib/python2.7/dist-packages/pygame/_camera.so 
#2 0x7094ede0 in camera_get_image() from /usr/lib/python2.7/dist-packages/pygame/_camera.so 
#3 0x0008360c in PyEval_EvalFrameEx() 
#4 0x00081ca4 in PyEval_EvalCodeEx() 
#5 0x000c37c4 in ??() 
Backtrace stopped: previous frame identical to this frame (corrupt stack?) 

我发现了gdb的一个新函数。 I型信息线程和我得到...

Id Target ID   Frame 
2 Thread 0x72df9460 (LWP 601) "python2.7" 0x76e3ab80 in poll()at ../sysdeps/unix/syscall-template.S:81 
*1 Thread 0x76ff6000 (LWP 600) "python2.7" 0x0006de50 in PyErr_Format() 

然后，如果我输入列表我得到这个

1  ../sysdeps/unix/syscall-template.S: No such file or directory 

我相信，星号表示是结束该程序的线程，但我不确定。有人知道该从这里做什么吗？

Answer 1

这在技术上不是答案，而是更多的解决方法。我完全放弃了SimpleCV。我不知道在SimpleCV，pygame中是否有错误，或者它是否在我的头上。我发现，如果我使用pygame拍摄照片并每分钟重新初始化一次，我永远不会出现分段错误。

import cv2 
import numpy as np 
import pygame 
import pygame.camera 

import time 
import os 
import RPi.GPIO as GPIO 

T = 1 
z = 0 
buff = 0 
flag = 0 


pygame.camera.init() 
pygame.camera.list_cameras() 
GPIO.setwarnings(False) 
GPIO.setmode(GPIO.BOARD) 
GPIO.setup(31, GPIO.OUT) 
GPIO.setup(32, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) 

GPIO.output(31,GPIO.HIGH) 

while(T): 

    w = [0 in range(9)] 
    if (flag == 0): 
     print("Ready") 
     flag = 1 


    if (z == 0): 
     z+=1 
     camera = pygame.camera.Camera("/dev/video0",(320,240)) 
     camera.start()   

    if(GPIO.input(32) and (z>=1)): 

     start = 80 
     pixel = 0 
     end = 225 


     time.sleep(0.32) 
     for buff in range(0,5): 
      img = camera.get_image() 

     pygame.image.save(img, "original.jpg") 

     edges = cv2.imread("pic.jpg") 

     edges = cv2.Canny(edges,90,210) 
     np.edges = edges 

     for y in range (100,160): 
      i = 0 
      first = 0 
      temp = 0 
      last = 0 
      for x in range (start, end): 
       pixel = np.edges[y,x] 

       if (pixel >=120 and first == 0): 
        first = x 


       if (pixel >=120 and first != 0 and last < x): 
        last = x 

      if last != 0: 
       temp = last - first 
       for x in range(start, end): 
        if ((x <= last) and (x >=first)): 
         edges[y,x] = 140; 

     z=0; 
     camera.stop() 

     while(GPIO.input(32)): 
      pass 

只要您每分钟至少拍摄一张照片，它看起来好像不会分段。我已经测试了一次约25小时，另一次测试了12小时。如果您不需要频繁拍摄照片，则可以在下次需要时停止相机并重新初始化它。我希望这有助于某人，因为这对我来说是几个星期的一个大问题。