Bug #18564 Updated: PHP 4.2.1+ hangs on certain pages

ID: 18564 Updated by: killswitch@hackermail.com Reported By: james@stealthnet.co.uk Status: Feedback Bug Type: Reproducible crash Operating System: FreeBSD 4.5 PHP Version: 4.2.2 New Comment: I have a similar problem. After a system crash I couldn’t access my website anymore. I used lynx to connect to my site and it hangs displaying this message: “HTTP request sent; waiting for response”. I tried to access to a subdirectory and my PHP pages are displayed correctly. (All pages are accessing the same mysql database). I tried an other subdirectory and the browser hangs again. This was Linux Suse 7.2 (2.4.4) with preinstalled Apache and mod_php4.0.6. I thought I could solve the problem by updating apache to 1.3.26 and PHP to 4.2.2. The problem is still the same. Apache doesn’t recognize any connect attempts, because no log file (error.log, access.log) contains any information about my connect attempts to non-working PHP pages. I created a PHP file containing “<? phpinfo() ?>” and put it into the non working web root directory. This file is displayed correctly. I tried the same with a more complex PHP file not accessing a mysql database. It worked. How is it possible that all PHP files of a whole directory accessing mysql databases are working and the same! files (copy, paste) in the next directory aren’t? see it in action: www.c-f-s.de/community/ //isn't working www.c-f-s.de/board/ //is working Previous Comments: ------------------------------------------------------------------------ [2002-07-26 05:40:17] james@stealthnet.co.uk Got it to crash this time: r2b% sudo php -f xml-database.php > db.xml php in free(): warning: recursive call php in free(): warning: recursive call php in free(): warning: recursive call php in free(): warning: recursive call php in free(): warning: recursive call php in free(): warning: recursive call php in free(): warning: recursive call zsh: segmentation fault (core dumped) sudo php -f xml-database.php > db.xml I'm talking to people in charge to get a snapshot copy of the script and database posted for you. FWIW I'm not using free() in my script. ------------------------------------------------------------------------ [2002-07-26 05:39:04] alan_k@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ [2002-07-26 05:36:01] james@stealthnet.co.uk And now the script, that is separate to the main site that hangs, doesn't want to segfault and instead works perfectly... For now. To see free4phones.com hang, visit free4phones.com/home.php and hope it's not working at the time. Apache loads mod_php4 as php was compiled --with-apxs=/path/to/apxs. These are some of the log messages we're getting whilst it's down: 66.185.84.74 - - [26/Jul/2002:00:04:25 +0000] "GET / HTTP/1.1" 200 5 "-" "Mozill a/4.0 (compatible; MSIE 6.0; Windows 98)" 209.94.217.29 - - [26/Jul/2002:00:04:37 +0000] "GET / HTTP/1.1" 200 5 "-" "Mozil la/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)" 67.27.151.184 - - [26/Jul/2002:00:05:21 +0000] "GET / HTTP/1.1" 200 5 "-" "Mozil la/4.0 (compatible; MSIE 6.0; Windows 98)" 12.2.142.7 - - [26/Jul/2002:00:05:59 +0000] "GET / HTTP/1.1" 200 5 "-" "Mozilla/ 4.0 (compatible; MSIE 5.5; Windows NT 5.0)" 216.160.234.138 - - [26/Jul/2002:00:06:59 +0000] "GET / HTTP/1.1" 200 5 "-" "Moz illa/4.0 (compatible; MSIE 6.0; Windows 98)" The / homepage redirects to a more suitable page (home.php) once a country selection has been made: r2b% grep -c home.php f4p-access.log 3 Hardly anyone has managed to get there. ------------------------------------------------------------------------ [2002-07-26 05:25:56] james@stealthnet.co.uk With the site hung: 9:19AM up 2 days, 11:55, 1 user, load averages: 2.08, 1.99, 1.70 With the site showing a plain html page for maintenance: 9:24AM up 2 days, 12 hrs, 1 user, load averages: 0.01, 0.69, 1.17 ------------------------------------------------------------------------ [2002-07-26 05:23:48] james@stealthnet.co.uk Trying to reproduce this but it is very random. FWIW, the site (free4phones.com) is currently down due to the hanging, and a ps ax shows the following: 8260 ?? Ss 0:10.06 /usr/local/sbin/httpd 8262 ?? I 22:11.14 /usr/local/sbin/httpd 8265 ?? I 1:51.65 /usr/local/sbin/httpd 8267 ?? I 43:36.37 /usr/local/sbin/httpd 8269 ?? I 1:33.23 /usr/local/sbin/httpd 8273 ?? I 8:22.31 /usr/local/sbin/httpd 8294 ?? I 1:32.05 /usr/local/sbin/httpd 8342 ?? I 0:26.78 /usr/local/sbin/httpd 8460 ?? I 5:23.44 /usr/local/sbin/httpd 8470 ?? I 5:38.83 /usr/local/sbin/httpd 8494 ?? I 1:57.36 /usr/local/sbin/httpd 8525 ?? I 0:58.25 /usr/local/sbin/httpd 8539 ?? I 6:53.54 /usr/local/sbin/httpd 8740 ?? I 1:31.74 /usr/local/sbin/httpd 8839 ?? I 3:34.29 /usr/local/sbin/httpd 9012 ?? I 23:09.84 /usr/local/sbin/httpd 9083 ?? I 2:21.43 /usr/local/sbin/httpd 9240 ?? I 1:23.04 /usr/local/sbin/httpd 9295 ?? I 1:43.14 /usr/local/sbin/httpd 9310 ?? I 0:31.92 /usr/local/sbin/httpd 9349 ?? I 1:30.91 /usr/local/sbin/httpd 9400 ?? I 1:33.04 /usr/local/sbin/httpd 9520 ?? I 2:54.29 /usr/local/sbin/httpd 9684 ?? I 24:10.87 /usr/local/sbin/httpd 11194 ?? I 1:00.40 /usr/local/sbin/httpd 11195 ?? I 10:04.76 /usr/local/sbin/httpd 11235 ?? I 14:39.19 /usr/local/sbin/httpd 11450 ?? I 0:46.55 /usr/local/sbin/httpd 11454 ?? I 0:54.18 /usr/local/sbin/httpd 11536 ?? I 0:57.52 /usr/local/sbin/httpd 11537 ?? I 0:57.79 /usr/local/sbin/httpd 11553 ?? I 1:04.38 /usr/local/sbin/httpd 11879 ?? I 1:47.63 /usr/local/sbin/httpd 11983 ?? I 4:41.52 /usr/local/sbin/httpd 12183 ?? S 19:23.89 /usr/local/sbin/httpd 12245 ?? I 4:14.40 /usr/local/sbin/httpd 12287 ?? I 7:44.76 /usr/local/sbin/httpd 12323 ?? I 13:32.37 /usr/local/sbin/httpd 12395 ?? I 0:49.69 /usr/local/sbin/httpd 12426 ?? I 6:46.30 /usr/local/sbin/httpd 12883 ?? I 0:31.24 /usr/local/sbin/httpd 12919 ?? I 4:19.26 /usr/local/sbin/httpd 12927 ?? I 2:03.11 /usr/local/sbin/httpd 12985 ?? I 0:59.90 /usr/local/sbin/httpd 13184 ?? I 2:11.55 /usr/local/sbin/httpd 13364 ?? S 2:25.69 /usr/local/sbin/httpd 13431 ?? Ss 0:00.42 sshd: jmkg@ttyp0 (sshd) 13484 ?? S 0:20.71 /usr/local/sbin/httpd 13485 ?? S 0:17.73 /usr/local/sbin/httpd 13487 ?? S 0:20.49 /usr/local/sbin/httpd 13488 ?? S 0:14.93 /usr/local/sbin/httpd 13491 ?? S 0:16.97 /usr/local/sbin/httpd 13492 ?? S 0:06.63 /usr/local/sbin/httpd 13499 ?? S 0:10.34 /usr/local/sbin/httpd 13502 ?? S 0:10.06 /usr/local/sbin/httpd 13522 ?? S 0:00.09 /usr/local/sbin/httpd 13523 ?? S 0:00.01 /usr/local/sbin/httpd 13524 ?? S 0:00.01 /usr/local/sbin/httpd 13525 ?? S 0:00.16 /usr/local/sbin/httpd 13526 ?? S 0:00.01 /usr/local/sbin/httpd 13527 ?? S 0:00.14 /usr/local/sbin/httpd 13528 ?? S 0:00.09 /usr/local/sbin/httpd 13529 ?? S 0:00.11 /usr/local/sbin/httpd 13533 ?? S 0:00.08 /usr/local/sbin/httpd 13534 ?? S 0:00.01 /usr/local/sbin/httpd 13535 ?? S 0:00.00 /usr/local/sbin/httpd 13536 ?? S 0:00.01 /usr/local/sbin/httpd 13537 ?? S 0:00.00 /usr/local/sbin/httpd 13538 ?? S 0:00.00 /usr/local/sbin/httpd 13540 ?? S 0:00.00 /usr/local/sbin/httpd 13543 ?? S 0:00.00 /usr/local/sbin/httpd This was after a graceful restart. Other sites on the same server doing light traffic. I've had to install a maintenance page on the free4phones.com site (a small html file) to prevent php kicking in and hanging mysqld and httpd. Bear with me whilst I attempt to get useful info. ------------------------------------------------------------------------ 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/18564 -- Edit this bug report at http://bugs.php.net/?id=18564&edit=1