Edit report at https://bugs.php.net/bug.php?id=39349&edit=1
ID: 39349
Comment by: ni...@php.net
Reported by: nikolas dot hagelstein at gmail dot com
Summary: Core dump on preg_replace
Status: Not a bug
Type: Bug
Package: PCRE related
Operating System: Netbsd 3.0.1
PHP Version: 5.2.0
Assigned To: andrei
Block user comment: N
Private report: N
New Comment:
@tsteiner: I'm pretty sure that this option was considered, but was found to
carry a performance penalty. Would be nice to get some data on this.
Previous Comments:
------------------------------------------------------------------------
[2013-05-08 20:36:54] tsteiner at nerdclub dot net
I've uploaded a patch that will disable using the stack for recursion when
building PCRE with the included library source. I've found that this
completely
eliminates segfaults when using PCRE functions on long strings.
------------------------------------------------------------------------
[2006-12-01 21:37:36] nikolas dot hagelstein at gmail dot com
A stack overflow shouldnt cause a segfault.
------------------------------------------------------------------------
[2006-12-01 20:25:11] nlop...@php.net
no bug here. just a stack overflow, which is avoidable by tweaking the new ini
options and/or increasing the stack size.
------------------------------------------------------------------------
[2006-11-12 19:03:04] tony2...@php.net
Yes, endless recursion most likely results in a segfault and this is expected.
------------------------------------------------------------------------
[2006-11-12 15:15:26] nikolas dot hagelstein at gmail dot com
This seems to be stack overflow related in general:
<?php
class Foo {
function do_something() {
global $x,$i;
$i++;
echo $i."\n";
$x->do_something();
}
}
$i=0;
$x = new Foo();
$x ->do_something();
?>
Endless recursion results in stack overflow which throws a segmentation fault.
Probably libc os related.
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