iPhone崩溃“No Backtrace” [英] iPhone Crash with "No Backtrace"

问题描述

我的iPhone应用程序最近被App Store拒绝因为它在发布时崩溃了。但是，我无法重现这次崩溃。该应用程序在模拟器和Apple上测试的相同硬件和软件（运行iOS 4的iPhone 3.1）上运行完美。他们发给我的崩溃日志说No Backtrace Available，所以我无处可查看我的代码。以下是一个示例：

My iPhone app was recently rejected from the App Store "because it crashes on launch". However, I cannot reproduce this crash. The app works perfectly on both the simulator and a device with the same hardware and software Apple tested it on (iPhone 3.1 running iOS 4). The crash logs they sent me say "No Backtrace Available", so I have nowhere to look in my code. Here's an example:

Incident Identifier: [...]
CrashReporter Key:   [...]
Hardware Model:      iPhone3,1
Process:         [MyApp] [1172]
Path:            /var/mobile/Applications/[...]-3F1B-4504-A572-[...]/[MyApp].app/[MyApp]
Identifier:      [MyApp]
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2010-07-08 [...]
OS Version:      iPhone OS 4.0 (8A293)
Report Version:  104

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0xfe42c648
Highlighted Thread:  0

Backtrace not available

Unknown thread crashed with ARM Thread State:
    r0: 0x00002388    r1: 0x00000000      r2: 0x3e2b47c8      r3: 0x00000108
    r4: 0x2fe00000    r5: 0x00000000      r6: 0x00000000      r7: 0x00000000
    r8: 0x2ffffb48    r9: 0x2fffecfc     r10: 0x00000000     r11: 0x00000000
    ip: 0x00000010    sp: 0x2ffffb4c      lr: 0x2fe08907      pc: 0xfe42c648
  cpsr: 0x40000010

Binary Images:
    0x1000 -    0x78fff +[MyApp] armv7  <23af3d265c3086eaceb51cc649eb794f> /var/mobile/Applications/[...]-3F1B-4504-A572-[...]/[MyApp].app/[MyApp]
0x2fe00000 - 0x2fe26fff  dyld armv7  <697ae459733a7f0b6c439b21ba62b110> /usr/lib/dyld
[many more libraries...]

我怎样才能开始调试这个？这可能是构建问题而不是编码错误吗？我可以从崩溃报告的ARM线程状态或二进制图像部分中提取任何有用的信息吗？

How can I begin debugging this? Is it possible this is a build issue rather than a coding bug? And can I extract any useful information from the "ARM Thread State" or the "Binary Images" portions of the crash report?

谢谢！

*更新：*我第一次在另一台运行iOS 4的iPhone上安装了该应用程序，仍无法重现崩溃。我开始认为这是构建时参数（例如库或目标版本）的问题。根据崩溃报告，我的应用程序的代码是否可能被执行？

*update: * I have installed the app for the first time on another iPhone running iOS 4 and still cannot reproduce the crash. I'm beginning to think this is an issue with build-time parameters such as libraries or targeted versions. Based on the crash report, is it likely that any of my application's code was executed?

推荐答案

我再也无法重现崩溃。我搞了几个构建参数并重新提交并且它被批准了。

I was never able to reproduce the crash. I messed with a few build params and resubmitted and it was approved.

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