php -w hangs indefinitely at 100% CPU

Bug #20896

Submitted:

2002-12-09 00:03 UTC

Modified:

2003-08-12 20:30 UTC

Votes:	4
Avg. Score:	4.0 ± 0.7
Reproduced:	4 of 4 (100.0%)
Same Version:	0 (0.0%)
Same OS:	1 (25.0%)

From:

carl at thep dot lu dot se

Assigned:

Status:

Closed

Package:

CGI/CLI related

PHP Version:

4.3.3RC2-dev

OS:

SuSE 7.2

Private report:

CVE-ID:

None

[2002-12-09 00:03 UTC] carl at thep dot lu dot se

Not quite a crash, but I found no better category (time to add one for
the CLI SAPI?)
A simple
php -w filename.php
will on my system output the things it should, but then hang forever at
full CPU consumption.

[PHP Modules]
ctype
gd
mysql
overload
pcre
pgsql
posix
session
standard
tokenizer
xml
zlib

Patches

Pull Requests

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[2002-12-11 02:20 UTC] ljpersson at hotmail dot com

Also repeatable on SuSE 8.0

[2002-12-11 02:38 UTC] sniper@php.net

This happens also with the -s option. And with CGI binary too. Basically the reason is that the -s / -w options use some hackish way to accomplish the tasks. Which seems to work on some systems though..

[2002-12-13 05:46 UTC] ljpersson at hotmail dot com

Same problem exists in 4.3.0RC3

[2002-12-22 12:19 UTC] andrew at evilwalrus dot com

Works fine for me on WinXP SP1 with 4.4.0-dev (CVS).

[2003-01-07 14:31 UTC] internet at choq dot fm

I have a similar problem on Slackware 8.1, on a kernel 2.4.20.

PHP version 4.3 Release.

When I start the server everything is fine for a little while. After a bit the CPU load increases dramatically and dosn't stop. Top shows me that the httpd processes are in a infinite loop. Also I can'T kill them at all, even with a kill -HUP.

uptime : 
15:28:55 up 18:21,  3 users,  load average: 47.15, 46.94, 44.35

with 46 looped httpd process.

I removed all the php scripts on the server and everything runs fine afdterwards, so it's definately caused by php.

I will recompile PHP and apache later tonight to see if this might be a problem between the kernel/apache/php4.

I will try posting more info as well. I know that mysql, gd, freetype, zlib, libpng, libjpeg are installed but I don't remmeber the others.

[2003-01-08 16:59 UTC] sthomas at townnews dot com

This bug also affects PHP 4.3.0 Final, at least on Redhat 7.3 and Redhat 8.0. Pretty odd to have 100% cpu usage when it's already finished with the whitespace stripping or syntax hilighting.

[2003-08-12 20:30 UTC] iliaa@php.net

This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.