From: phil at adigital dot com dot mx
Operating system: windows XP, linux
PHP version: 5.0.4
PHP Bug Type: Reproducible crash
Bug description: fread of a pipe hang after opening a pipe with a < entry
Description:
------------
Opening a pipe for read , for example for a cgi (in this example) will
block on the fread AFTER a call to a call with an entry file
I got the error on Windows, Linux, from PHP 5.0.2, PHP 5.0.4, PHP5.1 on
CVS (did not try on other versions either)
For example:
Call 1: popen("/usr/bin/php5"); with SCRIPT_FILENAME=info.php WORKS
perfectly, and is repeatible X times
Call 2: popen("/usr/bin/php5"); with SCRIPT_FILENAME=info.php<tempfile
WORKS perfectly... BUT
Call 3: after the call 2
popen("/usr/bin/php5"); with SCRIPT_FILENAME=info.php WILL HANG AND
TOTALLY BLOCK but without using CPU time.
compile: compiled downloaded version on windows,
natural php.ini without modifications
On linux: compiled as CLI, CGI, no more options than mysql
The bug do not depends on what is compiled with php
Thx
Reproduce code:
---------------
For linux code example :
http://www.thomassigny.org/bugpipe/linux/
For windows code example :
http://www.thomassigny.org/bugpipe/windows/
Expected result:
----------------
i expect the code does not hang...
Actual result:
--------------
no backtrace, the running code hang
--
Edit bug report at http://bugs.php.net/?id=33909&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33909&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=33909&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=33909&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=33909&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=33909&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=33909&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=33909&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=33909&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=33909&r=support
Expected behavior: http://bugs.php.net/fix.php?id=33909&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=33909&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=33909&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=33909&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33909&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=33909&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=33909&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=33909&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=33909&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=33909&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=33909&r=mysqlcfg
