Re: [PHP-DEV] URL for segfaults
Hi ! Did you have some stranges URL request in access_log ? Michael- - Original Message - From: Steven Roussey [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, November 21, 2002 5:39 PM Subject: [PHP-DEV] URL for segfaults Does anyone have an idea on how to track down segfaults from a production Apache 1.3.27/PHP 4.2.3 server? If I could just figure out the URL for the page that died, it would go a very long way... My Apache error_log file is filled with this stuff and it is hurting the server's performance: [Thu Nov 21 08:10:11 2002] [notice] child pid 12850 exit signal Segmentation fault (11) [Thu Nov 21 08:10:17 2002] [notice] child pid 12908 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12593 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12525 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12815 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12518 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12454 exit signal Segmentation fault (11) [Thu Nov 21 08:10:20 2002] [notice] child pid 12600 exit signal Segmentation fault (11) [Thu Nov 21 08:10:21 2002] [notice] child pid 12645 exit signal Segmentation fault (11) [Thu Nov 21 08:10:22 2002] [notice] child pid 12569 exit signal Segmentation fault (11) [Thu Nov 21 08:10:25 2002] [notice] child pid 13051 exit signal Segmentation fault (11) [Thu Nov 21 08:10:25 2002] [notice] child pid 12633 exit signal Segmentation fault (11) [Thu Nov 21 08:10:28 2002] [notice] child pid 12714 exit signal Segmentation fault (11) [Thu Nov 21 08:10:31 2002] [notice] child pid 12461 exit signal Segmentation fault (11) [Thu Nov 21 08:10:37 2002] [notice] child pid 12658 exit signal Segmentation fault (11) [Thu Nov 21 08:10:39 2002] [notice] child pid 12565 exit signal Segmentation fault (11) [Thu Nov 21 08:10:42 2002] [notice] child pid 12524 exit signal Segmentation fault (11) [Thu Nov 21 08:10:43 2002] [notice] child pid 12922 exit signal Segmentation fault (11) [Thu Nov 21 08:10:49 2002] [notice] child pid 12875 exit signal Segmentation fault (11) [Thu Nov 21 08:10:52 2002] [notice] child pid 12508 exit signal Segmentation fault (11) [Thu Nov 21 08:10:58 2002] [notice] child pid 12656 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 13076 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 12826 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 12659 exit signal Segmentation fault (11) [Thu Nov 21 08:11:01 2002] [notice] child pid 12812 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12982 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12780 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12740 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12540 exit signal Segmentation fault (11) [Thu Nov 21 08:11:04 2002] [notice] child pid 12778 exit signal Segmentation fault (11) [Thu Nov 21 08:11:04 2002] [notice] child pid 12603 exit signal Segmentation fault (11) [Thu Nov 21 08:11:10 2002] [notice] child pid 13079 exit signal Segmentation fault (11) [Thu Nov 21 08:11:11 2002] [notice] child pid 13080 exit signal Segmentation fault (11) [Thu Nov 21 08:11:12 2002] [notice] child pid 12823 exit signal Segmentation fault (11) [Thu Nov 21 08:11:13 2002] [notice] child pid 12712 exit signal Segmentation fault (11) [Thu Nov 21 08:11:13 2002] [notice] child pid 12455 exit signal Segmentation fault (11) [Thu Nov 21 08:11:14 2002] [notice] child pid 12701 exit signal Segmentation fault (11) [Thu Nov 21 08:11:23 2002] [notice] child pid 12672 exit signal Segmentation fault (11) Sincerely, Steven Roussey http://Network54.com/ -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DEV] URL for segfaults
Like Vergoz mentioned, just review the times in both files and you can narrow down which page caused the seg fault. On Thu, 2002-11-21 at 09:39, Steven Roussey wrote: Does anyone have an idea on how to track down segfaults from a production Apache 1.3.27/PHP 4.2.3 server? If I could just figure out the URL for the page that died, it would go a very long way... My Apache error_log file is filled with this stuff and it is hurting the server's performance: [Thu Nov 21 08:10:11 2002] [notice] child pid 12850 exit signal Segmentation fault (11) [Thu Nov 21 08:10:17 2002] [notice] child pid 12908 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12593 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12525 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12815 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12518 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12454 exit signal Segmentation fault (11) [Thu Nov 21 08:10:20 2002] [notice] child pid 12600 exit signal Segmentation fault (11) [Thu Nov 21 08:10:21 2002] [notice] child pid 12645 exit signal Segmentation fault (11) [Thu Nov 21 08:10:22 2002] [notice] child pid 12569 exit signal Segmentation fault (11) [Thu Nov 21 08:10:25 2002] [notice] child pid 13051 exit signal Segmentation fault (11) [Thu Nov 21 08:10:25 2002] [notice] child pid 12633 exit signal Segmentation fault (11) [Thu Nov 21 08:10:28 2002] [notice] child pid 12714 exit signal Segmentation fault (11) [Thu Nov 21 08:10:31 2002] [notice] child pid 12461 exit signal Segmentation fault (11) [Thu Nov 21 08:10:37 2002] [notice] child pid 12658 exit signal Segmentation fault (11) [Thu Nov 21 08:10:39 2002] [notice] child pid 12565 exit signal Segmentation fault (11) [Thu Nov 21 08:10:42 2002] [notice] child pid 12524 exit signal Segmentation fault (11) [Thu Nov 21 08:10:43 2002] [notice] child pid 12922 exit signal Segmentation fault (11) [Thu Nov 21 08:10:49 2002] [notice] child pid 12875 exit signal Segmentation fault (11) [Thu Nov 21 08:10:52 2002] [notice] child pid 12508 exit signal Segmentation fault (11) [Thu Nov 21 08:10:58 2002] [notice] child pid 12656 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 13076 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 12826 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 12659 exit signal Segmentation fault (11) [Thu Nov 21 08:11:01 2002] [notice] child pid 12812 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12982 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12780 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12740 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12540 exit signal Segmentation fault (11) [Thu Nov 21 08:11:04 2002] [notice] child pid 12778 exit signal Segmentation fault (11) [Thu Nov 21 08:11:04 2002] [notice] child pid 12603 exit signal Segmentation fault (11) [Thu Nov 21 08:11:10 2002] [notice] child pid 13079 exit signal Segmentation fault (11) [Thu Nov 21 08:11:11 2002] [notice] child pid 13080 exit signal Segmentation fault (11) [Thu Nov 21 08:11:12 2002] [notice] child pid 12823 exit signal Segmentation fault (11) [Thu Nov 21 08:11:13 2002] [notice] child pid 12712 exit signal Segmentation fault (11) [Thu Nov 21 08:11:13 2002] [notice] child pid 12455 exit signal Segmentation fault (11) [Thu Nov 21 08:11:14 2002] [notice] child pid 12701 exit signal Segmentation fault (11) [Thu Nov 21 08:11:23 2002] [notice] child pid 12672 exit signal Segmentation fault (11) Sincerely, Steven Roussey http://Network54.com/ -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DEV] URL for segfaults
No. And I wish access_log logged requests at the beginning of a request and had the child pid. There has to be some way of discovering or logging URLs and seeing if they complete without a segfault, at which point I'd look for those that did not complete. Surely I'm missing something simple... Sincerely, Steven Roussey http://Network54.com/ -Original Message- From: Vergoz Michael [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 21, 2002 8:47 am To: Steven Roussey; [EMAIL PROTECTED] Subject: Re: [PHP-DEV] URL for segfaults Hi ! Did you have some stranges URL request in access_log ? Michael- - Original Message - From: Steven Roussey [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, November 21, 2002 5:39 PM Subject: [PHP-DEV] URL for segfaults Does anyone have an idea on how to track down segfaults from a production Apache 1.3.27/PHP 4.2.3 server? If I could just figure out the URL for the page that died, it would go a very long way... My Apache error_log file is filled with this stuff and it is hurting the server's performance: [Thu Nov 21 08:10:11 2002] [notice] child pid 12850 exit signal Segmentation fault (11) [Thu Nov 21 08:10:17 2002] [notice] child pid 12908 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12593 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12525 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12815 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12518 exit signal Segmentation fault (11) -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DEV] URL for segfaults
Steven Roussey wrote: No. And I wish access_log logged requests at the beginning of a request and had the child pid. It would be very easy to write a custom module to log that at the beginning of the request. Would that help? Ivan -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DEV] URL for segfaults
Yes. Ideally such that you can grep for the failed URLs. I can see this as being very helpful to a lot of people. Debug modes don't work for production servers and it is only there that it is showing itself. BTW - Easy for you maybe! Sincerely, Steven Roussey http://Network54.com/ -Original Message- From: Ivan Ristic [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 21, 2002 9:24 am To: Steven Roussey Cc: 'Vergoz Michael'; [EMAIL PROTECTED] Subject: Re: [PHP-DEV] URL for segfaults Steven Roussey wrote: No. And I wish access_log logged requests at the beginning of a request and had the child pid. It would be very easy to write a custom module to log that at the beginning of the request. Would that help? Ivan -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DEV] URL for segfaults
Well, I think I found the cause if not the cure. I posted a bug report yesterday about zLib (http://bugs.php.net/?id=20535) that seems to be the culprit for another crash. Since our output compression uses it as well, I tried turning output compression off. No more segfaults. Unfortunately, I'll have to turn it back on and live with the segfaults for now until I find the problem with zLib 1.1.4. :( Luckily, I happen to have one string saved away that I know crashes it. Hopefully it will be enough to figure things out. Sincerely, Steven Roussey http://Network54.com/ On Thu, 2002-11-21 at 09:39, Steven Roussey wrote: Does anyone have an idea on how to track down segfaults from a production Apache 1.3.27/PHP 4.2.3 server? If I could just figure out the URL for the page that died, it would go a very long way... My Apache error_log file is filled with this stuff and it is hurting the server's performance: [Thu Nov 21 08:10:11 2002] [notice] child pid 12850 exit signal Segmentation fault (11) [Thu Nov 21 08:10:17 2002] [notice] child pid 12908 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12593 exit signal Segmentation fault (11) [Thu Nov 21 08:10:18 2002] [notice] child pid 12525 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12815 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12518 exit signal Segmentation fault (11) [Thu Nov 21 08:10:19 2002] [notice] child pid 12454 exit signal Segmentation fault (11) [Thu Nov 21 08:10:20 2002] [notice] child pid 12600 exit signal Segmentation fault (11) [Thu Nov 21 08:10:21 2002] [notice] child pid 12645 exit signal Segmentation fault (11) [Thu Nov 21 08:10:22 2002] [notice] child pid 12569 exit signal Segmentation fault (11) [Thu Nov 21 08:10:25 2002] [notice] child pid 13051 exit signal Segmentation fault (11) [Thu Nov 21 08:10:25 2002] [notice] child pid 12633 exit signal Segmentation fault (11) [Thu Nov 21 08:10:28 2002] [notice] child pid 12714 exit signal Segmentation fault (11) [Thu Nov 21 08:10:31 2002] [notice] child pid 12461 exit signal Segmentation fault (11) [Thu Nov 21 08:10:37 2002] [notice] child pid 12658 exit signal Segmentation fault (11) [Thu Nov 21 08:10:39 2002] [notice] child pid 12565 exit signal Segmentation fault (11) [Thu Nov 21 08:10:42 2002] [notice] child pid 12524 exit signal Segmentation fault (11) [Thu Nov 21 08:10:43 2002] [notice] child pid 12922 exit signal Segmentation fault (11) [Thu Nov 21 08:10:49 2002] [notice] child pid 12875 exit signal Segmentation fault (11) [Thu Nov 21 08:10:52 2002] [notice] child pid 12508 exit signal Segmentation fault (11) [Thu Nov 21 08:10:58 2002] [notice] child pid 12656 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 13076 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 12826 exit signal Segmentation fault (11) [Thu Nov 21 08:10:59 2002] [notice] child pid 12659 exit signal Segmentation fault (11) [Thu Nov 21 08:11:01 2002] [notice] child pid 12812 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12982 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12780 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12740 exit signal Segmentation fault (11) [Thu Nov 21 08:11:03 2002] [notice] child pid 12540 exit signal Segmentation fault (11) [Thu Nov 21 08:11:04 2002] [notice] child pid 12778 exit signal Segmentation fault (11) [Thu Nov 21 08:11:04 2002] [notice] child pid 12603 exit signal Segmentation fault (11) [Thu Nov 21 08:11:10 2002] [notice] child pid 13079 exit signal Segmentation fault (11) [Thu Nov 21 08:11:11 2002] [notice] child pid 13080 exit signal Segmentation fault (11) [Thu Nov 21 08:11:12 2002] [notice] child pid 12823 exit signal Segmentation fault (11) [Thu Nov 21 08:11:13 2002] [notice] child pid 12712 exit signal Segmentation fault (11) [Thu Nov 21 08:11:13 2002] [notice] child pid 12455 exit signal Segmentation fault (11) [Thu Nov 21 08:11:14 2002] [notice] child pid 12701 exit signal Segmentation fault (11) [Thu Nov 21 08:11:23 2002] [notice] child pid 12672 exit signal Segmentation fault (11) Sincerely, Steven Roussey http://Network54.com/ -- PHP Development Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DEV] URL for segfaults
Steven Roussey wrote:
Yes. Ideally such that you can grep for the failed URLs. I can see this
as being very helpful to a lot of people. Debug modes don't work for
production servers and it is only there that it is showing itself.
BTW - Easy for you maybe!
Don't take my word, have a look at it! :)
Ivan
#include httpd.h
#include http_config.h
#include http_request.h
#include http_protocol.h
#include http_core.h
#include http_main.h
#include http_log.h
module MODULE_VAR_EXPORT earlylog_module;
static int el_log(request_rec *r) {
ap_log_rerror(APLOG_MARK, APLOG_NOTICE|APLOG_NOERRNO, r, mod_earlylog: [%s]
%s, r-hostname, r-the_request);
return DECLINED;
}
module MODULE_VAR_EXPORT earlylog_module = {
STANDARD_MODULE_STUFF,
NULL, /* module initializer */
NULL, /* create per-dirconfig structures */
NULL, /* merge per-dirconfig structures */
NULL, /* create per-server config structures */
NULL, /* merge per-server config structures */
NULL, /* table of config file commands */
NULL, /* [#8] MIME-typed-dispatched handlers */
NULL, /* [#1] URI to filename translation*/
NULL, /* [#4] validate user id from request */
NULL, /* [#5] check if the user is ok _here_ */
NULL, /* [#3] check access by host address */
NULL, /* [#6] determine MIME type*/
NULL, /* [#7] pre-run fixups */
NULL, /* [#9] log a transaction */
NULL, /* [#2] header parser */
NULL, /* child_init */
NULL, /* child_exit */
el_log /* [#0] post read-request */
};
--
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