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Bug #35458 Crash on server-info
Submitted: 2005-11-28 20:36 UTC Modified: 2005-11-28 22:49 UTC
From: jfeise at gmail dot com Assigned:
Status: Not a bug Package: Apache2 related
PHP Version: 5.1.1 OS: Linux Kernel. 2.6.14
Private report: No CVE-ID: None
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 [2005-11-28 20:36 UTC] jfeise at gmail dot com 
Description:
------------
Wich PHP 5.1.1, any access to /server-info crashes Apache with a segfault.
I am using Apache 2.0.55.
It works fine with PHP 5.0.5.
The contents of config.nice:
'./configure' \
'--with-mysql=/usr/local/mysql' \
'--with-apxs2=/usr/local/apache2/bin/apxs' \
'--enable-track-vars' \
'--disable-debug' \
'--with-bz2' \
'--with-zlib' \
'--with-openssl=/usr/local/openssl/' \
"$@"
I am going to post a backtrace later today.

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 [2005-11-28 21:34 UTC] jfeise at gmail dot com 
The backtrace:
(gdb) run -X                                                                              
Starting program: /usr/local/apache2/bin/httpd -X                                           
[Thread debugging using libthread_db enabled]                                             
[New Thread 16384 (LWP 3476)]                                                             

Program received signal SIGSEGV, Segmentation fault.                                      
[Switching to Thread 16384 (LWP 3476)]                                                    
0xb7acd421 in strcasecmp () from /lib/libc.so.6                                           
(gdb) bt                                                                                  
#0  0xb7acd421 in strcasecmp () from /lib/libc.so.6                                       
#1  0x080b01f5 in mod_info_module_cmds ()                                                 
#2  0x080b0c6a in display_info ()                                                         
#3  0x080d156a in ap_run_handler ()                                                       
#4  0x080d1cd9 in ap_invoke_handler ()                                                    
#5  0x0809b241 in ap_process_request ()                                                   
#6  0x08095647 in ap_process_http_connection ()                                           
#7  0x080de322 in ap_run_process_connection ()                                            
#8  0x080de71c in ap_process_connection ()                                                
#9  0x080cfdfd in child_main ()                                                           
#10 0x080cfed4 in make_child ()
#11 0x080cfffc in startup_children ()                                                     
#12 0x080d040c in ap_mpm_run ()                                                           
#13 0x080d712d in main ()                                                                 
(gdb)
 [2005-11-28 21:39 UTC] tony2001@php.net 
Obviously, not PHP problem.
 [2005-11-28 21:45 UTC] jfeise at gmail dot com 
I disagree.
This happened after upgrading to PHP 5.1.1, from 5.0.5, without any other changes.
I think #1 in the backtrace, mod_info_module_cmds (), is the issue. The server-info collect module information, and that fails with php 5.1.1.
 [2005-11-28 21:49 UTC] sniper@php.net 
First of all: What MPM are you using in Apache2?
And how did you configure PHP in the httpd.conf ?
 [2005-11-28 21:56 UTC] jfeise at gmail dot com 
I'm using prefork:
 httpd -l
Compiled in modules:
...
  prefork.c

I'm not quite sure what you mean with the PHP configuration in httpd.conf.
It is pretty much standard:
LoadModule php5_module        modules/libphp5.so
DirectoryIndex index.php index.html index.html.var
AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps
 [2005-11-28 22:08 UTC] jfeise at gmail dot com 
More info:
The Apache error log has this line:
[Mon Nov 28 13:00:03 2005] [crit] ERROR: Linked library:5.0.15 / mysql.h=4.0.20\n
It seems the build picked up the wrong include directory for MySQL. I am recompiling now with the correct include dir.
 [2005-11-28 22:19 UTC] tony2001@php.net 
Works perfectly fine here.
 [2005-11-28 22:43 UTC] jfeise at gmail dot com 
Ok, it seems that this crash had to do with different modules using different MySQL header files/APIs.
I recompiled all modules that use MySQL, and it is now working.
Thanks all, sorry for bothering you.
 [2005-11-28 22:49 UTC] tony2001@php.net 
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