ID: 23040 Updated by: [EMAIL PROTECTED] Reported By: tim at danan dot com -Status: Open +Status: Feedback Bug Type: Reproducible crash Operating System: Redhat 8 PHP Version: 4.3.1 New Comment:
Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip There have been couple of dozen fixes that might have also fixed this. So please give the snapshot a go. Previous Comments: ------------------------------------------------------------------------ [2003-04-03 16:49:02] [EMAIL PROTECTED] It looks like putenv() is the last thing called from PHP land before the crash, so that's a start. J ------------------------------------------------------------------------ [2003-04-03 16:36:46] tim at danan dot com I've not been able to narrow it down to anything that specific yet. I've only just narrowed it down to this page in the past day or so. Unfortunately, the page almost 700 lines long, so I wouldn't call it "short". I'll continue to try to narrow it down to see if I can isolate a function, but it may not be easy since the page tends to load fine 50-60 times in a row, then blow up. There's probably something unique going on in the crash instances, but I've not located it yet. If you'd like the long script I'll be happy to provide it. I'm not an expert at reading dumps by any means. Does anything jump out at you? Are there any hints of some place I might be able to look to help narrow things down? ------------------------------------------------------------------------ [2003-04-03 15:51:54] [EMAIL PROTECTED] Do you have a short test script that can reproduce this segfault? J ------------------------------------------------------------------------ [2003-04-03 15:22:52] tim at danan dot com I have a page that is generating repeated segmentation faults on a Redhat 8 system running Apache 1.3.27 and PHP 4.3.1. It is part of a forum system (FudForum) that, unforunately, I didn't write. MySQL and sessions are both involved. The faults are not occurring on every use, but seem to occur about once an hour. Once a seg fault appears I tend to see 4-5 of them in succession, then they disappear again for an hour or so. [Thu Apr 3 14:18:51 2003] [notice] child pid 8668 exit signal Segmentation fault (11) I was able to generate a backtrace by running httpd -X in gdb. (gdb) run -X Starting program: /usr/local/apache/bin/httpd -X Program received signal SIGSEGV, Segmentation fault. 0x40262195 in calloc () from /lib/libc.so.6 (gdb) bt #0 0x40262195 in calloc () from /lib/libc.so.6 #1 0x40260f60 in realloc () from /lib/libc.so.6 #2 0x402176cf in putenv () from /lib/libc.so.6 #3 0x402175f8 in putenv () from /lib/libc.so.6 #4 0x404e6b41 in zif_putenv (ht=1, return_value=0x86fb92c, this_ptr=0x0, return_value_used=0) at /usr/local/src/php-4.3.1/ext/standard/basic_functions.c:1353 #5 0x405ab626 in execute (op_array=0x86ec4f0) at /usr/local/src/php-4.3.1/Zend/zend_execute.c:1596 #6 0x405ab859 in execute (op_array=0x86ea418) at /usr/local/src/php-4.3.1/Zend/zend_execute.c:1640 #7 0x405ab859 in execute (op_array=0x86459ac) at /usr/local/src/php-4.3.1/Zend/zend_execute.c:1640 #8 0x4059a321 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/local/src/php-4.3.1/Zend/zend.c:864 #9 0x40564f6b in php_execute_script (primary_file=0xbffff390) at /usr/local/src/php-4.3.1/main/main.c:1573 #10 0x405b0546 in apache_php_module_main (r=0x841801c, display_source_mode=0) at /usr/local/src/php-4.3.1/sapi/apache/sapi_apache.c:55 #11 0x405b13e6 in send_php (r=0x841801c, display_source_mode=0, filename=0x8419dfc "/var/www/html/forum/index.php") at /usr/local/src/php-4.3.1/sapi/apache/mod_php4.c:556 #12 0x405b145f in send_parsed_php (r=0x841801c) at /usr/local/src/php-4.3.1/sapi/apache/mod_php4.c:571 #13 0x080cd6f4 in ap_invoke_handler () #14 0x080e209a in process_request_internal () #15 0x080e20fa in ap_process_request () #16 0x080d92e2 in child_main () #17 0x080d94a8 in make_child () #18 0x080d960f in startup_children () #19 0x080d9c3c in standalone_main () #20 0x080da474 in main () #21 0x40202907 in __libc_start_main () from /lib/libc.so.6 GCC Version: gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) My php config is VERY simple: ./configure \ --with-apxs=/usr/local/apache/bin/apxs \ --with-mysql \ --with-pgsql \ --with-pspell \ --enable-debug I'm sure there is a great deal of additional information I can provide, and I will do so quite willingly. My apologies if I've overlooked anything in this report. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=23040&edit=1
