如何调试没有错误消息的错误？

Question

如何调试没有错误消息的错误？

加载PHP页面时,我在Firefox中收到此错误.

The connection to the server was reset while the page was loading.

它没有说明除了它似乎是Apache崩溃之外的原因.

Apache错误日志显示:

[Wed Nov 03 10:23:04 2010] [notice] Parent: child process exited with status 3221225477 -- Restarting.
[Wed Nov 03 10:23:06 2010] [notice] Digest: generating secret for digest authentication ...
[Wed Nov 03 10:23:06 2010] [notice] Digest: done
[Wed Nov 03 10:23:06 2010] [notice] Apache/2.2.14 (Win32) DAV/2 mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 configured -- resuming normal operations
[Wed Nov 03 10:23:06 2010] [notice] Server built: Nov 11 2009 14:29:03
[Wed Nov 03 10:23:06 2010] [notice] Parent: Created child process 5100
[Wed Nov 03 10:23:07 2010] [notice] Digest: generating secret for digest authentication ...
[Wed Nov 03 10:23:07 2010] [notice] Digest: done
[Wed Nov 03 10:23:07 2010] [notice] Child 5100: Child process is running
[Wed Nov 03 10:23:07 2010] [notice] Child 5100: Acquired the start mutex.
[Wed Nov 03 10:23:07 2010] [notice] Child 5100: Starting 150 worker threads.
[Wed Nov 03 10:23:07 2010] [notice] Child 5100: Starting thread to listen on port 80.
[Wed Nov 03 10:23:07 2010] [notice] Child 5100: Starting thread to listen on port 80.

我尝试搜索3221225477代码但发现没有任何效果.

Windows事件查看器也显示了这一点:

Faulting application name: httpd.exe, version: 2.2.14.0, time stamp: 0x4aeb9704
Faulting module name: php5ts.dll, version: 5.3.1.0, time stamp: 0x4b06c41d
Exception code: 0xc0000005
Fault offset: 0x00082391
Faulting process id: 0x8f4
Faulting application start time: 0x01cb7b85fa74bf83
Faulting application path: C:\xampp\apache\bin\httpd.exe
Faulting module path: C:\xampp\php\php5ts.dll
Report Id: 73996201-e779-11df-938f-e0cb4e5b154a

当我打电话时会发生这种情况:

return mysql_fetch_object($result, $class_name);

当我使用时,它也会发生在另一个页面上 $_SESSION

如果我切换到使用CGI代替php5ts.dll而且php5apache2_2.dll我得到:

Premature end of script headers: php-cgi.exe

它只发生在一些页面上.其他人工作正常.

• 不会发生PHP错误或异常.错误报告设置为E_ALL & ~E_NOTICE & ~E_DEPRECATED.display_errors是的.
• 超时设置为60秒,错误页面在大约10秒内返回.
• 内存使用量约为16MB,最大限制为256MB.
• PHP 5.3.1,Windows 7 64位.

那么有谁知道如何有效地调试此错误？

Answer 1

好吧，您可以首先阅读“生成回溯”并搜索与您类似的已注册 PHP 错误报告，如果确实没有找到，则提交错误。如果您确实感兴趣，可以检查PHP 源代码并提出补丁。