From: lars at erhardsen dot dk
Operating system: debian woody
PHP version: 4.3.4
PHP Bug Type: Program Execution
Bug description: exec does not wait for completion of cmd
Description:
------------
I think, I have a similar problem as #11023 - where exec() does not wait
for program completion.
The scenary is: Linux 2.4.22, Apache 2.0.48, PHP 4.3.4 on a Pentium 4,
2.4ghz, 512 mb ram
The page continues without the 'output' from exec thus leaving an
incomplete page. If I press f5/refresh, some times it works, other times
it does not work.
I have also placed sleeps between commands to ensure it works well, but
imho this should not be nescessary - as this "bug" does not appear on a
slower machine.
My php config:
./configure --with-apxs2=/usr/local/apache2/bin/apxs
--with-gd=/usr/local --with-pdflib=/usr/local --with-mysql
--with-config-file-path=/etc/apache2 --with-session --with-zlib-dir=/usr
--with-png-dir=/usr/lib --with-freetype-dir=/usr --with-jpeg-dir=/usr
--with-tiff-dir=/usr --with-system-regex=yes --enable-debug=no
--with-xml --with-imap-ssl=/usr/local/imap-2002d --enable-exif
--with-openssl --with-gettext --enable-ftp --enable-sysvsem
--enable-sysvshm --enable-calendar --enable-bcmath --enable-sockets
--enable-track-vars --with-mcrypt --enable-gd-native-ttf
--enable-mbstring --enable-gd-native-ttf
My Apache config:
./configure --enable-ssl --enable-rewrite --enable-so --enable-info
--enable-suexec --with-suexec-caller=nobody --enable-dav
--enable-deflate
Reproduce code:
---------------
system ( "hostname" );
echo " | ";
$a = exec ( "uptime" );
$b = split(',', $a);
$c = split('up', $b[0]);
$d = split(':', $b[3]);
echo $c[1] . " | " . $d[1] . ", " . $b[4] . ", " . $b[5];
Expected result:
----------------
maxmotor | 75 days | 0.00, 0.00, 0.00
Actual result:
--------------
Some times, nothing is returned
--
Edit bug report at http://bugs.php.net/?id=27201&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=27201&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=27201&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=27201&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=27201&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=27201&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=27201&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=27201&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=27201&r=support
Expected behavior: http://bugs.php.net/fix.php?id=27201&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=27201&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=27201&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=27201&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27201&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=27201&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=27201&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=27201&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27201&r=float
