我的iPhone应用程序崩溃

Question

我制作了一个应恒定运行的应用程序，直到停止它为止。 它的基本作用是从连接的另一台设备获取一些数据，然后使用NSURLConnection定期将数据发送到服务器，然后从服务器定期读取数据，并使用NSXMLParser将数据可视化为图形。

我运行仪器检查分配和泄漏。 完全没有泄漏。 内存监视器显示一致的5.2MB。 Objectalloc图是稳定的，objectallo的Net字节约为480000，＃net约为6400。

问题是应用程序在大约12小时后停止（或崩溃）。 有什么可能的问题？ 我绝对不知道从哪里开始发现问题，因为调试器和仪器都不会显示任何错误或问题。

[添加]

1。 根据Paul的建议，我在模拟器上运行了我的应用程序，并在运行5小时后收到了一些错误消息。

InAir(64628,0xa050c720) malloc: *** error for object 0xc015bc87: Non-aligned pointer being freed
*** set a breakpoint in malloc_error_break to debug
InAir(64628,0xa050c720) malloc: *** error for object 0xa0200100: pointer being freed was not allocated
InAir(64628,0xa050c720) malloc: *** error for object 0x2080a043: pointer being freed was not allocated
InAir(64628,0xa050c720) malloc: *** error for object 0x120100: pointer being freed was not allocated
InAir(64628,0xa050c720) malloc: *** error for object 0x34a00000: pointer being freed was not allocated
InAir(64628,0xa050c720) malloc: *** error for object 0xc1d3a1b1: pointer being freed was not allocated
InAir(64628,0xa050c720) malloc: *** error for object 0x46b0a1b1: pointer being freed was not allocated
InAir(64628,0xa050c720) malloc: *** error for object 0xc1d3a1b1: pointer being freed was not allocated
Program received signal:  “EXC_BAD_ACCESS”.

2。 关于NilObject的评论...我不知道组织者有崩溃日志。 是的，它有。

Incident Identifier: 0ADC2722-BF4B-457F-A224-4A946810FB1F
CrashReporter Key:   f62c1dc12071b63c1e21d612962ee6aad74b4503
Process:         InAir [3154]
Path:            /var/mobile/Applications/9471A5CA-97E1-4E52-A934-9CE33DC5A5DB/InAir.app/InAir
Identifier:      InAir
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2009-02-21 21:37:36.786 -0500
OS Version:      iPhone OS 2.2.1 (5H11a)
Report Version:  103

Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x00000001, 0xe7ffdefe
Crashed Thread:  0

Thread 0 Crashed:
0   libobjc.A.dylib                 0x300c8c18 objc_msgSend + 20
1   InAir                           0x00003d34 0x1000 + 11572
2   Foundation                      0x306942a0 __NSFireTimer + 132
3   CoreFoundation                  0x30269d88 CFRunLoopRunSpecific + 2642
4   CoreFoundation                  0x30269320 CFRunLoopRunInMode + 44
5   GraphicsServices                0x31567e58 GSEventRunModal + 268
6   UIKit                           0x30a4fa6c -[UIApplication _run] + 520
7   UIKit                           0x30a591d0 UIApplicationMain + 1132
8   InAir                           0x000020b6 0x1000 + 4278
9   InAir                           0x0000202c 0x1000 + 4140 

Thread 0 crashed with ARM Thread State:
    r0: 0x0013b920    r1: 0x301a2410      r2: 0x0013b920      r3: 0x301a2410
    r4: 0xc004ea47    r5: 0x001203d0      r6: 0x001203d0      r7: 0x2fffef50
    r8: 0x001203d0    r9: 0x394346d0     r10: 0x001063b0     r11: 0x00000f03
    ip: 0x0000a134    sp: 0x2fffeef8      lr: 0x00003d3b      pc: 0x300c8c18
  cpsr: 0x00000010

（等等。整个日志在这里 。）

有人可以解释这些吗？

Answer 1

您是否已尝试在错误消息告诉您时在malloc_error_break上设置断点？ （运行→管理断点→​​添加符号断点）。