#20985 [Opn->Fbk]: heavy load = Segmentation fault

ID: 20985 Updated by: iliaa@php.net Reported By: jfl@eksperten.dk -Status: Open +Status: Feedback Bug Type: Reproducible crash Operating System: Redhat Linux 7.3 & 8 PHP Version: 4.3.0RC3 New Comment: This is a fairly big script and I cannot even run it fully because I am missing over a dosen various includes your script requires. Is there any way you could reduce this to a single, preferably short script that could be used to replicate the memory leak you are seeing? Previous Comments: ------------------------------------------------------------------------ [2002-12-15 13:21:15] jfl@eksperten.dk The files has been sent to iliaa@php.net. If none of my scripts has errors I can not get SIGSEGV. But I get "Last leak repeated X times". Have a look at http://test.webalogic.net/bugs/error_log-no_SIGSEGV and the other files at http://test.webalogic.net/ ------------------------------------------------------------------------ [2002-12-14 23:37:19] iliaa@php.net Could you provide copies of the list.phtml & info.phtml scripts? ------------------------------------------------------------------------ [2002-12-14 16:22:39] jfl@eksperten.dk By starting Apache, with built in Php-4.3.0RC3, with 'gdb /usr/local/apache/bin/httpd' I can not make it crash. But if I start Apache normally I get a Segmentation fault in the error_log. Please see the bottom of http://test.webalogic.net/bugs/error_log_php4-3 (2mb) What can I do to help you further? ------------------------------------------------------------------------ [2002-12-14 13:59:11] jfl@eksperten.dk I'll now start testing Php-4.3.0RC3 ------------------------------------------------------------------------ [2002-12-14 13:51:02] jfl@eksperten.dk This is what I get every time with Php 4.2.3 compiled into Apache. More info @ http://test.webalogic.net/bugs/ I think the bug is happening when Apache is trying to kill children, as the SIGSEGV is happening when the stress tool is finished. (gdb) run -X Starting program: /usr/local/apache/bin/httpd -X Program received signal SIGSEGV, Segmentation fault. 0x4207c46c in memcpy () from /lib/i686/libc.so.6 (gdb) bt #0 0x4207c46c in memcpy () from /lib/i686/libc.so.6 #1 0x081041d0 in _mem_block_check () #2 0x08104197 in _mem_block_check () #3 0x081034a1 in _efree () #4 0x0811283c in _zval_dtor () #5 0x08109bac in free_zend_constant () #6 0x08118c29 in zend_hash_del_key_or_index () #7 0x081194a6 in zend_hash_reverse_apply () #8 0x08109fb4 in clean_non_persistent_constants () #9 0x0810a780 in shutdown_executor () #10 0x0811387f in zend_deactivate () #11 0x08078500 in php_request_shutdown () #12 0x0811f192 in apache_php_module_main () #13 0x080761cc in php_restore_umask () #14 0x08076237 in php_restore_umask () #15 0x08140990 in ap_invoke_handler () #16 0x08154d86 in ap_some_auth_required () #17 0x08154de6 in ap_process_request () #18 0x0814c0aa in ap_child_terminate () #19 0x0814c24a in ap_child_terminate () #20 0x0814c3b1 in ap_child_terminate () #21 0x0814c9de in ap_child_terminate () #22 0x0814d1fc in main () ---Type <return> to continue, or q <return> to quit--- #23 0x420158d4 in __libc_start_main () from /lib/i686/libc.so.6 (gdb) frame 5 #5 0x08109bac in free_zend_constant () (gdb) list 1 <unknown>: No such file or directory. in <unknown> (gdb) p The history is empty. (gdb) ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/20985 -- Edit this bug report at http://bugs.php.net/?id=20985&edit=1