From:             
Operating system: Linux
PHP version:      5.3.2
Package:          Reproducible crash
Bug Type:         Bug
Bug description:Broscap crash on shutdown

Description:
------------
I am running pgp-cgi in fast cgi mode and when I shutdown the server with
killall 

php-cgi it crashes.  Below is the backtrace, I am not sure how to reproduce


exactly but I only use get_browser once per request and it always crashes
killing 

after it has been running for a while.

Test script:
---------------
<?php



$b = get_browser();

Expected result:
----------------
Shutdown gracefully

Actual result:
--------------
#0  0x00007fed7590ba75 in *__GI_raise (sig=<value optimized out>) at 

../nptl/sysdeps/unix/sysv/linux/raise.c:64

#1  0x00007fed7590f5c0 in *__GI_abort () at abort.c:92

#2  0x00007fed759454fb in __libc_message (do_abort=<value optimized out>, 

fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189

#3  0x00007fed7594f5b6 in malloc_printerr (action=3, str=0x7fed75a1e2e2 

"corrupted double-linked list", ptr=<value optimized out>) at
malloc.c:6264

#4  0x00007fed75952a25 in _int_free (av=0x7fed75c55e40, p=0x1671ec0) at 

malloc.c:4954

#5  0x00007fed75955e53 in *__GI___libc_free (mem=<value optimized out>) at


malloc.c:3738

#6  0x0000000000692c58 in browscap_entry_dtor (zvalue=0x1670c48) at 

/usr/src/php-5.3.2/ext/standard/browscap.c:41

#7  0x0000000000750750 in zend_hash_destroy (ht=0xebdcc0) at /usr/src/php-

5.3.2/Zend/zend_hash.c:526

#8  0x0000000000692bfb in zm_shutdown_browscap (type=<value optimized out>,


module_number=<value optimized out>) at /usr/src/php-

5.3.2/ext/standard/browscap.c:236

#9  0x000000000068fc65 in zm_shutdown_basic (type=1, module_number=32) at 

/usr/src/php-5.3.2/ext/standard/basic_functions.c:3685

#10 0x000000000074a56f in module_destructor (module=0x1170bf0) at
/usr/src/php-

5.3.2/Zend/zend_API.c:2098

#11 0x00000000007503e2 in zend_hash_apply_deleter (ht=0xec4f40,
p=0x1170b90) at 

/usr/src/php-5.3.2/Zend/zend_hash.c:611

#12 0x0000000000750698 in zend_hash_graceful_reverse_destroy (ht=0xec4f40)
at 

/usr/src/php-5.3.2/Zend/zend_hash.c:646

#13 0x0000000000744d18 in zend_shutdown () at
/usr/src/php-5.3.2/Zend/zend.c:759

#14 0x00000000006f097d in php_module_shutdown () at /usr/src/php-

5.3.2/main/main.c:2138

#15 0x00000000007cc9e5 in main (argc=1, argv=0x7fffab6ce008) at
/usr/src/php-

5.3.2/sapi/cgi/cgi_main.c:2231

-- 
Edit bug report at http://bugs.php.net/bug.php?id=51572&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=51572&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=51572&r=trysnapshot53
Try a snapshot (PHP 6.0):            
http://bugs.php.net/fix.php?id=51572&r=trysnapshot60
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=51572&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=51572&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=51572&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=51572&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=51572&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=51572&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=51572&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=51572&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=51572&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=51572&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=51572&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=51572&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=51572&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=51572&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=51572&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=51572&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=51572&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=51572&r=mysqlcfg

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