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|  Topic: how to examine apache crashes? |  |  
| Author |  |  
| mike__b 
 
 
 Joined: 03 Sep 2009
 Posts: 4
 
 
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|  Posted: Thu 07 Mar '13 17:49    Post subject: how to examine apache crashes? |   |  
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| Hi, 
 I'm using mod_perl 2.0.7 on Windows with Apache 2.2.23. I got Apache
 from Apachelounge, and compiled mod_perl and perl 5.16.2 myself using
 Visual Studio 2008. I'm using a 32-bit Windows Vista.
 
 Pretty frequently my app (which works just fine on Linux) makes Apache
 crash. If I perform 500 requests with Apache Bench, I see this:
 
 Benchmarking localhost (be patient)
 Completed 100 requests
 Completed 200 requests
 Completed 300 requests
 apr_socket_recv: An existing connection was forcibly closed by the
 remote host.   (730054)
 Total of 338 requests completed
 
 In the apache error log I see apache is restarting, but this results
 in some HTTP 500 errors that make the apache-bench results fail. When
 using a web browser, I also get these http 500 errors.
 
 If I run the application using native CGI (i.e. I turn off mod_perl) I
 do not see crashes but of course it is *very* slow.
 
 How can I find out what makes apache/mod_perl crash?
 
 I asked the same on the modperl mailing lists, there they said I needed the symbol files for apache (*.pdb files). Where are these?
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| James Blond Moderator
 
  
 Joined: 19 Jan 2006
 Posts: 7442
 Location: EU, Germany, Next to Hamburg
 
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|  Posted: Thu 21 Mar '13 11:07    Post subject: |   |  
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| Steffen may provied that files since he compiled it, he must have that files. |  |  
| Back to top |  |  
| Steffen Moderator
 
 
 Joined: 15 Oct 2005
 Posts: 3131
 Location: Hilversum, NL, EU
 
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|  Posted: Thu 21 Mar '13 12:00    Post subject: |   |  
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| For the current builds I did not kept the .pdb's. In the future I shall keep them and if some needs it, I can provide. |  |  
| Back to top |  |  
| glsmith Moderator
 
  
 Joined: 16 Oct 2007
 Posts: 2268
 Location: Sun Diego, USA
 
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|  Posted: Thu 21 Mar '13 19:35    Post subject: |   |  
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| I could supply symbols for the current Apache Haus build (2.2.24). 
 Provided you have a version of Visual Studio 2008 other than Express, you can get a backtrace.
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