From: [EMAIL PROTECTED]
Operating system: FreeBSD
PHP version: 4.2.2
PHP Bug Type: Reproducible crash
Bug description: Segmentation fault (11) in recursive function call
I get this all the time when I include a recursive function call. I've
tried rewriting the function several ways and get intermitten Segmentation
faults, saw a SuSe Linux report about scripts terminating with similar
output in the web server error_log.
I"ve tried just opening the fh and going down recursive directories with
this, got the seg faults often.This version
buffers the file names in an array, closes the directory handle then
processes the array, to count certain types of files in the directory
tree. Still segfaults often enough to make it unreliable. I turned on the
autoflush in php.ini and it dies in this routine.
FreeBSD 4.5-RELEASE
Apache/1.3.26 (Unix) PHP/4.2.2 mod_ssl/2.8.9 OpenSSL/0.9.6g
RegisterGlobals = On :)
I use a perl script for my apache coplilation, here's my php_config line.
--with-mysql=/usr/local --with-gd=/usr/local
--with-jpeg-dir=/usr/local/lib --with-png-dir=/usr/
local/lib --with-zlib-dir=/usr/lib $xpm --with-freetype-dir=/usr/local/lib
--with-mcrypt=/usr/local --with-gettext --wit
h-xml --with-zlib=/usr --with-bz2=/usr/local --with-zip=/usr/local
--with-mm=/usr/local --with-apache=../$apache --enable-ftp --disable-debug
--enable-track-vars
Here's the current version of the function
function CountFiles($dir,$d) {
global $home;
global $prod_count;
$farray = array(); $d++;
if (is_dir("$home$dir")) {
print "<!-- ISDIR dir=$dir level=$d -->\n";
if ($dfh = @opendir("$home$dir")) {
while (($fil = readdir($dfh)) !== false) {
if (!preg_match("/^\.+$/", $fil)) {
array_push($farray,"$fil");
}
}
closedir($dfh);
if (count($farray) > 0) {
while (list ($key, $file) = each ($farray)) {
if (is_dir("$home$dir/$file")) {
CountFiles("$dir/$file",$d);
flush();
} else if (preg_match("/^thumb_\w+\.|\.wav$|\.aif$/", $file)) {
$prod_count++;
print "<!-- POST dir=$dir/$file prod_count=$prod_count -->\n";
flush();
}
}
}
}
}
flush();
}
It's not entirely reproducible, but once I got a directory where it causes
the segfault I can comment out this routine and it's okay, comment it back
and reload and it segfaults.
So in that sense it's reproducible. Restarting the web server has no
effect. Though if I reload enough times sometimes the script completes,
there is definitely some sort of bug, maybe the filehandle or array
declaration isn't local or leaks out, not sure.
Hope it's not something stupid I overlooked. :)
--
Edit bug report at http://bugs.php.net/?id=20186&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=20186&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=20186&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=20186&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=20186&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=20186&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=20186&r=support
Expected behavior: http://bugs.php.net/fix.php?id=20186&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=20186&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=20186&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=20186&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=20186&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=20186&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=20186&r=isapi
