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Subject: segfault on apache startup with --enable-debug
From: php@trickie.org (Nick Loeve)

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Hello internals,

I get a segfault when starting apache with debug enabled in the php
build. I am using the latest 5_1 cvs, and apache 1.3

The backtrace i get in gdb is attached.

Is that likely to be caused with memory handling in an extension module?
It works fine in non-debug, but i am just trying to make sure i have
cleaned up properly in an extension i am building.

Thanks

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Content-Disposition: inline;
 filename="bt.txt"

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1210743712 (LWP 20634)]
0xb7dcedb3 in strlen () from /lib/tls/i686/cmov/libc.so.6
(gdb) bt
#0  0xb7dcedb3 in strlen () from /lib/tls/i686/cmov/libc.so.6
#1  0xb7b46e30 in format_converter (odp=0xbffff160, fmt=0xb7c50d81 "s(%d) :  Freeing 0x%.8lX (%d bytes), script=%s\n", ap=0xbffff1b0 "T") at /home/trickie/Desktop/php-src/main/snprintf.c:901
#2  0xb7b4744e in strx_printv (ccp=0xbffff194, buf=0xbffff470 "\003", len=512, format=0xb7c50d80 "%s(%d) :  Freeing 0x%.8lX (%d bytes), script=%s\n", ap=0xbffff1ac "")
    at /home/trickie/Desktop/php-src/main/snprintf.c:1130
#3  0xb7b474a8 in ap_php_snprintf (buf=0xbffff470 "\003", len=512, format=0xb7c50d80 "%s(%d) :  Freeing 0x%.8lX (%d bytes), script=%s\n") at /home/trickie/Desktop/php-src/main/snprintf.c:1144
#4  0xb7b43d36 in php_message_handler_for_zend (message=4, data=0x80f5c10) at /home/trickie/Desktop/php-src/main/main.c:916
#5  0xb7b8e59e in zend_message_dispatcher (message=4, data=0x80f5c10) at /home/trickie/Desktop/php-src/Zend/zend.c:857
#6  0xb7b74921 in shutdown_memory_manager (silent=0, full_shutdown=1) at /home/trickie/Desktop/php-src/Zend/zend_alloc.c:561
#7  0xb7b452a1 in php_module_shutdown () at /home/trickie/Desktop/php-src/main/main.c:1575
#8  0xb7b4522a in php_module_shutdown_wrapper (sapi_globals=0xb7cdacc0) at /home/trickie/Desktop/php-src/main/main.c:1538
#9  0xb7c07e9e in apache_php_module_shutdown_wrapper () at /home/trickie/Desktop/php-src/sapi/apache/mod_php5.c:876
#10 0x080522d3 in ap_run_cleanup ()
#11 0x08051107 in ap_clear_pool ()
#12 0x0805ff31 in ap_child_terminate ()
#13 0x08060a96 in main ()

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