Bug #18258 Updated: Gettting frequent Seg Faults on PHP scripts

ID: 18258 Updated by: david+php.net@blue-labs.org Reported By: tauren@servlets.net Status: Feedback Bug Type: Reproducible crash Operating System: Red Hat 6.2 PHP Version: 4.2.1 New Comment: You'll have to ignore sniper@php.net, he|it|whatever seems to ask for backtraces regardless of their already being posted. I have a similar problem but I've narrowed it down to sessions. <?php session_start(); ?> This code is sufficient to cause a segfault, I just added my two cents to another bug, I'll fetch that in a moment. Are you by chance using sessions? Previous Comments: ------------------------------------------------------------------------ [2002-07-12 03:56:32] alan_k@php.net You mentioned that you do not get segfaults on the phpinfo page anymore (which is where the last gdb back trace indicated you did). So the last backtrace is not usefull anymore.. - can you run the site again in gdb, apache -X etc. and try and make it segfault. you may also like to try arvins rpms for redhat 6.2? http://rpms.arvin.dk/php/rh62/i586/ ------------------------------------------------------------------------ [2002-07-12 03:44:20] tauren@servlets.net Hi sniper@php.net, Thanks for the response. You asked for a backtrace in your message even though I have already submitted several of them. Are the ones I've submitted not useful? What more do you suggest I do? Tauren ------------------------------------------------------------------------ [2002-07-11 22:01:24] sniper@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. ------------------------------------------------------------------------ [2002-07-11 18:24:47] tauren@servlets.net Any ideas on what is going on here? All of my hosted sites that use PHP have very poor performance right now because of all the seg faults. I've tried rolling back to what was installed previously, but I'm still getting the problem. I've tried compiling Apahce/PHP with no additional options and features, but the problem still persists. I'm going to try 1.3.26 with an older PHP 4.1 version next. Some messages on Google seem to indicate that others had success by reverting back. Any help would be much appreciated! Tauren ------------------------------------------------------------------------ [2002-07-10 07:42:01] tauren@servlets.net After looking around on my system, it looks like libmcrypt is fairly old. It was installed in March 2001. So I removed it and installed 2.5.1 (it was handy -- I didn't realize 2.5.2 was out when I installed it). I also found that libmhash, libfreetype, libt1, and other libraries were fairly old too. So I cleaned all of them up and installed recent versions. I then recompiled Apache/PHP. Unfortunately, the problem still exists with the Segmentation Faults. However, now I can't get a backtrace in gdb because hitting the phpinfo.php page no longer causes gdb to halt like it was before. This is even though I'm having just as much if not more trouble bringing up phpinfo.php now that I've reinstalled everything. Tomorrow I think that I'll reinstall again with a very bare-bones Apache/PHP installation and see if I still have problems. In the meantime, if anyone has more suggestions, please let me know! Thanks again, Tauren ------------------------------------------------------------------------ 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/18258 -- Edit this bug report at http://bugs.php.net/?id=18258&edit=1