This code is much simplier IMO and demonstrates the same behaviour (both with 5.0.x & 5.1.x):
<?
class C {

	public function __construct() {
		$this->byePHP($this->plip());
	}

	public function byePHP($plop) {
		echo "www.haricow.org";
	}

	public function plip() {
		try {
			$this->plap($this->plop());
		}
		catch(Exception $e) {
		}
	}

	public function plap($a) {
	
	}

	public function plop() {
		throw new Exception;
	}

}

new C;
?>

Same bug, different code.
two hours lost :(

The constructor contains a return statement, but it is only 

<?php

class UserModuleTest  {
	
	public function __construct($obj) {

		try {
			new UserModuleTest($this->query());
		} catch(Exception $e) {
		}
		
	}

	public function query() {
		throw new Exception;
	}



}

$test = new UserModuleTest(new UserModuleTest());

?>

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208719680 (LWP 31723)]
0x0812c49f in zend_do_fcall_common_helper_SPEC (execute_data=0xbff2c160) at zend_vm_execute.h:120
120             if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {
(gdb) bt
#0  0x0812c49f in zend_do_fcall_common_helper_SPEC (execute_data=0xbff2c160) at zend_vm_execute.h:120
#1  0x0812c3c9 in execute (op_array=0x8bdd8e4) at zend_vm_execute.h:78
#2  0x0810ea63 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/src/php/php5/Zend/zend.c:1059
#3  0x080dcd78 in php_execute_script (primary_file=0xbff2e600) at /usr/src/php/php5/main/main.c:1653
#4  0x08186a5f in main (argc=2, argv=0xbff2e6c4) at /usr/src/php/php5/sapi/cli/php_cli.c:954

Fixed in CVS HEAD and PHP_5_0

I encounter this bug with builds of 5.2.8, built on debian.

Configure Line:
 Command 	'./configure' '--with-apxs2=/usr/local/apache2/bin/apxs' '--with-mysql' '--with-gd' '--enable-soap' '--with-libxml-dir=/usr/lib/' '--with-mysql-sock=/tmp' '--with-tidy' '--with-jpeg-dir=/usr/lib/' '--with-xsl' '--with-curl' '--with-snmp' '--with-freetype-dir=/usr/local/freetype2' '--with-zlib' '--enable-gd-native-ttf' '--with-openssl' '--with-mm=/usr/local/mm-1.4.2/' '--with-mcrypt' '--with-pdo-mysql' '--with-mysqli' '--enable-debug'

"memcheck" output is up at
http://example.preinheimer.com/30707.a.txt
(too long to paste to a form)

Please let me know if there's anything I can do to help diagnose the issue.

Dmitry, can you take a look at it please?

Working with ScottMac on IRC, he had me clean out the directories and re-build. With that clean build the issue disapears, so he suggested that I close the bug.

While I am heeding his advice, I am somewhat troubled by it. I have built PHP on this box perhaps 10 times, of those 10 builds 2 or 3 of them failed this test. While I may have forgotten to 'make clean' between builds, I don't think that should have caused this issue.


so closed, with reservations.