ID: 47893
Updated by: lbarn...@php.net
Reported By: jon at thesquareplanet dot com
-Status: Open
+Status: Analyzed
Bug Type: Reproducible crash
Operating System: Debian Lenny
PHP Version: 5.2CVS-2009-04-03 (snap)
New Comment:
This is reproducible with this script too:
<?php
stream_set_blocking(STDIN, 0);
$str = str_repeat("a", 65535);
var_dump($str);
?>
This is caused by STDOUT being non-blocking if your shell passes the
same descriptor for STDOUT and STDIN (the write fails with EAGAIN and
PHP aborts).
Running the same script with different STDIN/STDOUT does not reproduce
the problem, e.g.
php test.php >/dev/null
or
php test.php </dev/null
Previous Comments:
------------------------------------------------------------------------
[2009-04-03 23:18:55] jon at thesquareplanet dot com
A discussion of this bug can also be found at:
http://www.mail-archive.com/php-gene...@lists.php.net/msg118150.html
------------------------------------------------------------------------
[2009-04-03 23:17:40] jon at thesquareplanet dot com
Description:
------------
When setting STDIN to be non-blocking, and then running fread() on it,
the cli script suddenly terminates at a seemingly random point during
the reading. No error message is given.
Seemingly related bugs:
http://bugs.php.net/bug.php?id=25616 <-- This is the same bug, but has
erroneously been labeled as a dupe of the one below
http://bugs.php.net/bug.php?id=25575 <-- This bug describes a somewhat
similar, though not nearly identical, problem
These bugs are both set as last modified in 2003/2004, but the issue
remains unfixed.
Reproduce code:
---------------
<?php
stream_set_blocking(STDIN, FALSE);
while (1) {
var_dump(fread(STDIN,1));
echo "\n";;
}
?>
Expected result:
----------------
A never-ending sequence of var_dumps of either an empty string or a
typed character
Actual result:
--------------
The expected output, but only for a short while, and then the script
terminates
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=47893&edit=1
