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

ID: 18564 Updated by: james@stealthnet.co.uk Reported By: james@stealthnet.co.uk Status: Feedback Bug Type: Reproducible crash Operating System: FreeBSD 4.5 PHP Version: 4.2.2 New Comment: 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. Previous Comments: ------------------------------------------------------------------------ [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. ------------------------------------------------------------------------ [2002-07-26 01:56:59] rverlander@php.net What were the segfault errors? ------------------------------------------------------------------------ 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