ID: 39349 User updated by: nikolas dot hagelstein at gmail dot com Reported By: nikolas dot hagelstein at gmail dot com -Status: Feedback +Status: Open Bug Type: Reproducible crash Operating System: Netbsd 3.0.1 PHP Version: 5.2.0 New Comment:
seems to work with ulimit is there any other solution beside recompiling it using the named flag? i mean running out of stack may happen on any system regardless of its default ulimits. Previous Comments: ------------------------------------------------------------------------ [2006-11-07 14:48:39] [EMAIL PROTECTED] You probably run out of stack. You can try increasing your stack size and trying again on the command line with: uname -s 16384 for example. If that's what your problem is you can compile an external PCRE that will not use stack but heap (and be slower in the process). You can do that by compiling PCRE using --disable-stack-for-recursion option. ------------------------------------------------------------------------ [2006-11-03 13:03:32] nikolas dot hagelstein at gmail dot com I was able to narrow down the problem to the following it seems to be size/overflow related: <? $out=<<<EOT {abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxy abcdefghijklmnopqrstuvwxyabcdefghijklmnopqr } EOT; $out=preg_replace("/\n/","",$out); $out=preg_replace("/\{(?:[^{}]|\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\})*\}/","",$out); ?> This Coredumps but if i reduce the string by one char (ie the 'r') it stops coredumping. ------------------------------------------------------------------------ [2006-11-02 21:14:29] nikolas dot hagelstein at gmail dot com Description: ------------ Passing large text to the beyond mentioned regexp makes php core dump Reproduce code: --------------- $out=preg_replace("/\{(?:[^{}]|\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\})*\}/","",$out); Where $out is <content xml:space="preserve"> of http://en.wikipedia.org/w/query.php?what=content&titles=moon Probably related to some libc issues. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=39349&edit=1