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Re: Php Crashing [message #9525 is a reply to message #5936]

Sat, 05 April 2003 14:37

ScooterQ

Messages: 25
Registered: June 2002
Location: Norcross, GA

Karma:

Junior Member

I've been struggling with a similar seg fault issue for the past two weeks. I've been bouncing a bug report around with the PHP team, but we haven't been able to narrow anything down.

This morning I thought I had fixed the problem after a recompile of Apache and PHP. I went about 15 hours without a seg fault. That all changed once I ran a compact messages on FudForum.

Previously my seg faults were semi-random. Now I can seg fault PHP on demand. I've been testing with a hacked up version of the compact page (adm/compact.php) - I'm slowly adding the code back in until I produce errors. The seg fault is occuring after the post and appears to be somewhere around the time of the db_lock (line 110).

Is there anything you can do to help me out? I wasn't able to give the PHP guys enough detail about a specific function/script (the problem seemed to be happening on the index page previously) to get a good bug report for them. This problem is definitely reproducible (every time I press submit), so if I/we can narrow it down to a function perhaps we can either (1) find the problem in PHP, or (2) find the problem in FUDForum.

Config information and backtrace follow:

RedHat 8
Apache 1.3.27
PHP 4.3.2-RC (Friday's CVS, installed per recommendation of PHP team)
FUDForum version is 2.3.9-RC1
MySQL version (from RPM) is mysql-server-3.23.54a-4

Apache and PHP are compiled by me with very few options turned on. PHP is configured as follows:

./configure \
--with-apxs=/usr/local/apache/bin/apxs \
--with-mysql \
--with-pgsql \
--with-pspell \
--enable-debug

BACKTRACE

Starting program: /usr/local/apache/bin/httpd -X

Program received signal SIGSEGV, Segmentation fault.
0x402520b1 in setvbuf () from /lib/libc.so.6
(gdb) bt
#0 0x402520b1 in setvbuf () from /lib/libc.so.6
#1 0x4053f74a in php_stdiop_set_option (stream=0x84b6624, option=3, value=2, ptrparam=0xbfff9130)
at /usr/local/src/php4-STABLE-200304041230/main/streams.c:1636
#2 0x4053eaea in _php_stream_set_option (stream=0x84b6624, option=3, value=2, ptrparam=0xbfff9130)
at /usr/local/src/php4-STABLE-200304041230/main/streams.c:1002
#3 0x404e3e30 in zif_stream_set_write_buffer (ht=2, return_value=0x84b5e6c, this_ptr=0x0, return_value_used=0)
at /usr/local/src/php4-STABLE-200304041230/ext/standard/file.c:1607
#4 0x405675ea in execute (op_array=0x8430a54)
at /usr/local/src/php4-STABLE-200304041230/Zend/zend_execute.c:1606
#5 0x4055ae19 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
at /usr/local/src/php4-STABLE-200304041230/Zend/zend.c:864
#6 0x40535de7 in php_execute_script (primary_file=0xbfffebb0)
at /usr/local/src/php4-STABLE-200304041230/main/main.c:1653
#7 0x4056b172 in apache_php_module_main (r=0x840f47c, display_source_mode=0)
at /usr/local/src/php4-STABLE-200304041230/sapi/apache/sapi_apache.c:55
#8 0x4056bc05 in send_php (r=0x840f47c, display_source_mode=0, filename=0x0)
at /usr/local/src/php4-STABLE-200304041230/sapi/apache/mod_php4.c:617
#9 0x4056bd9a in send_parsed_php (r=0x840f47c)
at /usr/local/src/php4-STABLE-200304041230/sapi/apache/mod_php4.c:632
#10 0x080c5c04 in ap_invoke_handler ()
#11 0x080da5aa in process_request_internal ()
#12 0x080da60a in ap_process_request ()
#13 0x080d17f2 in child_main ()
#14 0x080d19b8 in make_child ()
#15 0x080d1b1f in startup_children ()
#16 0x080d214c in standalone_main ()
#17 0x080d2984 in main ()
#18 0x40202907 in __libc_start_main () from /lib/libc.so.6

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[Message index]

		Php Crashing By: njolly on Fri, 27 September 2002 16:18
		Re: Php Crashing By: Ilia on Fri, 27 September 2002 16:21
		Re: Php Crashing By: njolly on Fri, 27 September 2002 16:23
		Re: Php Crashing By: njolly on Fri, 27 September 2002 18:12
		Re: Php Crashing By: Ilia on Fri, 27 September 2002 19:00
		Re: Php Crashing By: ScooterQ on Sat, 05 April 2003 14:37
		Re: Php Crashing By: philip on Fri, 11 April 2003 17:27
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 17:39
		Re: Php Crashing By: philip on Fri, 11 April 2003 17:42
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 18:06
		Re: Php Crashing By: Ilia on Sun, 13 April 2003 14:34
		Re: Php Crashing By: Ilia on Sun, 13 April 2003 14:43
		Re: Php Crashing By: ScooterQ on Sun, 13 April 2003 15:25
		Re: Php Crashing By: Ilia on Sun, 13 April 2003 15:28
		Re: Php Crashing By: ScooterQ on Tue, 15 April 2003 18:09
		Re: Php Crashing By: Ilia on Tue, 15 April 2003 19:15
		Re: Php Crashing By: ScooterQ on Tue, 15 April 2003 19:32
		Re: Php Crashing By: Ilia on Tue, 15 April 2003 19:35
		Re: Php Crashing By: ScooterQ on Tue, 15 April 2003 19:38
		Re: Php Crashing By: philip on Fri, 11 April 2003 19:08
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 19:29
		Re: Php Crashing By: philip on Fri, 11 April 2003 19:46
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 20:01

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