This picture also causes processor to max out:

http://www.geocities.com/Tokyo/Palace/5677/riiya1.gif

The 2 gif images you've offered are corrupt, and I cannot 
replicate the cpu usage you are reporting.  

Yes, the images are corrupt.  I believe that is why the function imageCreateFromGif() is going into an infinite loop.  I need to have the function just exit and not loop infinitely.

When I run the php page from the command line it goes into an infinite loop.  When I load the php page from an Apache web server, it causes Apache to stall infinitely.  My processor maxes out and I have to go to the Windows Task Menu to cancel the process.

I am running the following:

Windows XP
Apache/1.3.28
PHP/4.3.7 
GD library is turned on in php.ini

Any help would be greatful.  Thanks.

It seems this is Windows specific issue caused most probably by php_gd2.dll.

I have reproduced this bug using

php -r "imagecreatefromgif('http://members.tripod.com/~TyroneZero/drstrangelove.gif');"

on both windows xp in PHP 5.0.0rc2
and linux with 4.3.6
(both command line).

The above command causes it to hang. Tracing through the code using a debugger it does look a lot like an infinate loop, though it could just be a really long one.

I believe the infinate loop starts at line 155 in gd_gif_in.c at 

for (;;) {

- I think it may just not be reaching an exit condition.

I may investigate more later.

Very strangely, if I download the gif and run the same command without going to the site at runtime, there is no such problem.

Irid.

Problem is in GetDataBlock_ it doesn't even return -1 so constantly loops within the end code handling part of LWZReadByte_

while ((count = GetDataBlock(fd, buf)) > 0)
is the loop in question in libgd/gd_gif_in.c

I dont have enough time to see whats wrong with that function but its there its looping.

Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip

Can not reproduce.

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

I've experienced this bug with latest stable php5 release. However, I do not believe the gif is corrupted, just odd formated (which you may very well call corrupt if you like). Due to the fact most programs just read these gifs whatsoever, as well as create them, our "stupid" customers will continue using them. Would be nice to be able to work with them or rejecting them without timeing out the script.

PS: how do I re-open this bug?

imagecreatefromgif("img.gif");
Child process of Apache usage 95% CPU and infinite loop
The img.gif is corrupt

Please do not submit the same bug more than once. An existing
bug report already describes this very problem. Even if you feel
that your issue is somewhat different, the resolution is likely
to be the same. 

Thank you for your interest in PHP.

Duplicate of #33220.

Partiallly fixed there, please try snapshots.