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How do I debug errors that have no error message?
When loading a PHP page I am getting this error in Firefox.
The connection to the server was reset while the page was loading.
It gives no indication as to why other than it appears to be Apache crashing.
Apache error logs shows:
[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.
I tried searching the 3221225477 code but found nothing that worked.
Also the Windows Event Viewer shows this:
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
This is happening when I call:
return mysql_fetch_object($result, $class_name);
Its also happening on another page when I use $_SESSION
If I switch to using CGI instead of the php5ts.dll and php5apache2_2.dll I get:
Premature end of script headers: php-cgi.exe
Its is only happening for some pages. Others work fine.
E_ALL & ~E_NOTICE & ~E_DEPRECATED. display_errors is on. So does anyone know how to effectively debug this error?
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This error message usually returns the variable name in question so it’s not too hard to debug. There are developer tools such as Pylint and other libraries with lint in their names that can help you find obvious NameError mistakes. Pro tip look for those libraries.
Step 1 – Note the message id and message number of the error message by double clicking the message. Step 2 – Go to the transaction where error is coming and execute until the last step where the error comes. In the command window, write /H and press enter. After pressing the enter, you should see a success message at the bottom of the screen.
There are several ways to debug Java code. When developing, you can use the tools available in your IDE or debugger. Once the application is deployed to production, you can capture the logs or use an error monitoring solution. Let’s explore each of these ways in more detail. There are several ways to debug your code in Eclipse.
It is because admins have full access to the org, but not your users. Of course you can set the flow to run in the system context, but that could be risky as well. Instead, you can run the flow as another user. To enable this feature, go to Setup > Process Automation Settings > Check “Let admins debug flows as other users”
Well, you can start by reading "Generating a Backtrace" and searching for registered PHP bug reports similar to you, and submitting a bug if you've really found none. If you are really interested, you can inspect the PHP Source and propose a patch.
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Looks like you are experiencing a bug in PHP, leading to a crash. Try to upgrade to the latest nightly build (http://snaps.php.net/). If that doesn't help, try to get a backtrace and submit a bug on bugs.php.net.
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