ID: 47811 Updated by: nlop...@php.net Reported By: travis at wikihow dot com -Status: Assigned +Status: Bogus Bug Type: Reproducible crash Operating System: CentOS release 4.4 & Mac OS 10.4 PHP Version: 5.2.9 Assigned To: nlopess New Comment:
Felipe is right. This is not a bug, just the expected stack overflow. You can "fix" the problem by increasing the stack size. Previous Comments: ------------------------------------------------------------------------ [2009-04-02 12:39:01] fel...@php.net This stack overflow is expected. See the earlies bug reports. ------------------------------------------------------------------------ [2009-04-02 12:27:26] Phil dot H at gmx dot net Another php preg_match crash using php 5.2.9-1 on Windows XP and 2003R2: <?php $string = str_repeat('blub ', 100000); $regexp = '/ \G (?P<text> (?:.(?!\[% ))*.(?=\[%| $))/isx'; if (preg_match($regexp, $string, $aMatches, PREG_OFFSET_CAPTURE, 0)) { echo "matched\n"; } echo "finished"; ?> ------------------------------------------------------------------------ [2009-03-30 12:22:15] paj...@php.net Nuno, can you take a look please? Can reproduce it here too. ------------------------------------------------------------------------ [2009-03-30 11:24:40] scope at planetavent dot de Here's another snippet: <?php $s = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"; $pattern = "@(X)*@"; $return = preg_match( $pattern, $s ); echo $return; ?> This one crashes apache 2.2.8 and 2.2.11 with php-5.2.9 and php-5.2.9-1 on windows 2003. ------------------------------------------------------------------------ [2009-03-27 23:53:44] dennis dot birkholz at nexxes dot net I have a similar segfault testcase for preg_match. It always crashes at a stringlength of around 6700. PHP is 5.2.8 on gentoo linux. # Create my test-string for ($i=0; $i<20000; $i++) { $string .= 'a'; } # The pattern matches for \\, \", everything except " and " $pattern = '/^(\\\\|\\"|[^"]|")+$/'; print "Trying with string length " . "\033" . '[s'; for ($counter=6600; $counter<strlen($string); $counter++) { if (preg_match($pattern, substr($string,0,$counter), $matches)) { print "\033" . '[u' . $counter . '...'; flush(); list($dummy, $aa) = $matches; } } print "\n"; ------------------------------------------------------------------------ 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/47811 -- Edit this bug report at http://bugs.php.net/?id=47811&edit=1