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Re: Php Crashing [message #9582 is a reply to message #9581]

Fri, 11 April 2003 20:01

ScooterQ

Messages: 25
Registered: June 2002
Location: Norcross, GA

Karma:

Junior Member

philip wrote on Fri, 11 April 2003 15:46

I would help and will attempt to cause the segfault but I'm a weak sysadmin and don't close these types of bugs. That and backtraces look like a bunch of gibberish to me.

I might be a bit stronger on the sysadmin side of things, but backtraces and debugger output is gibberish to me, too.

Quote:

It appears you're attempting to create a non-fudforum script to cause this segfault, is this true? Like does that use of putenv() by itself cause it? I wonder if this is a locale problem, I don't know this topic at all.

I can reproduce the problem by running compact messages with the script distributed with FUDForum 2.3.9RC1. The putenv() issue was suspect in the original issue, but there's no use of putenv() within compact.php. What I did was I made o copy of the compact.php script and removed all of the code. I then began adding things back until the segfault happened. Somewhere around line 110 the problem reoccurred.

Quote:

No application (in PHP or otherwise) should ever be able to cause a segfault so I don't think fudforum can even take partial blame here but only partial credit for causing it (so it can be fixed) Smile

Key word - should. Something is happening within that compact script that is causing seg faults on my server. I agree, if the function is considered legal in PHP, it shouldn't cause a seg fault. If it does, that's not the fault of the guys around here, but rather a PHP issue. The problem is that I'm not overly familiar with some of the functions used in the compact script (flush, db_lock). I keep hoping that one of the developers more familiar with the innards of the script can give me a couple of hints so that we can collectively fix the problem.

 
       echo "<br>Please wait while forum is being compacted.<br>This may take a while depending on the size of your forum.<br>\n";
        flush();

        define('__file_perms__', (($GLOBALS['FILE_LOCK']=='Y')?0600:0644));

        /* Normal Messages */
        echo "Compacting normal messages...<br>\n";
        flush();
        $stm = time();
        db_lock($GLOBALS['DBHOST_TBL_PREFIX'].'msg+, 
                '.$GLOBALS['DBHOST_TBL_PREFIX'].'thread+, 
                '.$GLOBALS['DBHOST_TBL_PREFIX'].'forum+, 
                '.$GLOBALS['DBHOST_TBL_PREFIX'].'replace+');

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[Message index]

		Php Crashing By: njolly on Fri, 27 September 2002 16:18
		Re: Php Crashing By: Ilia on Fri, 27 September 2002 16:21
		Re: Php Crashing By: njolly on Fri, 27 September 2002 16:23
		Re: Php Crashing By: njolly on Fri, 27 September 2002 18:12
		Re: Php Crashing By: Ilia on Fri, 27 September 2002 19:00
		Re: Php Crashing By: ScooterQ on Sat, 05 April 2003 14:37
		Re: Php Crashing By: philip on Fri, 11 April 2003 17:27
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 17:39
		Re: Php Crashing By: philip on Fri, 11 April 2003 17:42
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 18:06
		Re: Php Crashing By: Ilia on Sun, 13 April 2003 14:34
		Re: Php Crashing By: Ilia on Sun, 13 April 2003 14:43
		Re: Php Crashing By: ScooterQ on Sun, 13 April 2003 15:25
		Re: Php Crashing By: Ilia on Sun, 13 April 2003 15:28
		Re: Php Crashing By: ScooterQ on Tue, 15 April 2003 18:09
		Re: Php Crashing By: Ilia on Tue, 15 April 2003 19:15
		Re: Php Crashing By: ScooterQ on Tue, 15 April 2003 19:32
		Re: Php Crashing By: Ilia on Tue, 15 April 2003 19:35
		Re: Php Crashing By: ScooterQ on Tue, 15 April 2003 19:38
		Re: Php Crashing By: philip on Fri, 11 April 2003 19:08
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 19:29
		Re: Php Crashing By: philip on Fri, 11 April 2003 19:46
		Re: Php Crashing By: ScooterQ on Fri, 11 April 2003 20:01

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