#33909 [Asn->Opn]: fread of a pipe hang after opening a pipe with a < entry

ID: 33909 Updated by: jani@php.net Reported By: phil at adigital dot com dot mx -Status: Assigned +Status: Open Bug Type: Program Execution Operating System: * PHP Version: 5CVS-2005-07-29 Assigned To: wez New Comment: Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows (zip): http://snaps.php.net/win32/php5.2-win32-latest.zip For Windows (installer): http://snaps.php.net/win32/php5.2-win32-installer-latest.msi Previous Comments: ------------------------------------------------------------------------ [2005-07-28 18:55:33] phil at adigital dot com dot mx 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 this bug report at http://bugs.php.net/?id=33909&edit=1