"Segmentation fault" using writeImage()

IMagick is a native PHP extension to create and modify images using the ImageMagick API. ImageMagick Studio LLC did not write nor does it maintain the IMagick extension, however, IMagick users are welcome to discuss the extension here.
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hgpit
Posts: 4
Joined: 2015-10-21T03:02:02-07:00
Authentication code: 1151

"Segmentation fault" using writeImage()

Post by hgpit » 2015-10-21T03:20:52-07:00

Hi all,

Setup:
CentOS 6.7
php 5.3.3
ImageMagick 6.7.2-7 2015-07-23
php-pecl-imagick-2.2.2-5.el6.x86_64 (EPEL repo)

I have been using command line tools (i.e.: from Bash) for a long time on this server to manipulate images using ImageMagick, and it's worked fine.
However, I now want to use the Imagick PHP extension, so installed it (as per guides such as http://tecadmin.net/install-imagemagick-on-linux/#), but whenever I run my test PHP, I always receive the same error when it tries to save the image out:

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Segmentation fault (core dumped)
My PHP test script is:

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<?php
function funcMakeThumb($vFullImagePath) {
	echo 'Setting object...'.PHP_EOL;
	$imagick = new Imagick(realpath($vFullImagePath));
	echo 'Resizing...'.PHP_EOL;
	$imagick->thumbnailImage(100, 100);
	echo 'Writing image out to '.pathinfo($vFullImagePath,PATHINFO_DIRNAME).DIRECTORY_SEPARATOR.pathinfo($vFullImagePath,PATHINFO_BASENAME).'.thumb.'.pathinfo($vFullImagePath,PATHINFO_EXTENSION).'...'.PHP_EOL;
	$imagick->writeImage(pathinfo($vFullImagePath,PATHINFO_DIRNAME).DIRECTORY_SEPARATOR.pathinfo($vFullImagePath,PATHINFO_BASENAME).'.thumb.'.pathinfo($vFullImagePath,PATHINFO_EXTENSION));
}

funcMakeThumb('/var/www/haylo.hayley-group.co.uk/images/user.gif');
?>
This is what I see in my /var/log/messages:

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Oct 21 11:16:39 svr-h002607 kernel: php[3992]: segfault at 32b9e0f05c ip 00000032b9e0f05c sp 00007f4f3b47ddb8 error 14
Oct 21 11:16:39 svr-h002607 kernel: php[3990]: segfault at 32b9e0f062 ip 00000032b9e0f062 sp 00007f4f3c87fdb8 error 14
Oct 21 11:16:39 svr-h002607 kernel: php[3988]: segfault at 32b9e0f05e ip 00000032b9e0f05e sp 00007f4f3dc81db8 error 14
Oct 21 11:16:39 svr-h002607 kernel: php[3991]: segfault at 32b9e0f05e ip 00000032b9e0f05e sp 00007f4f3be7edb8 error 14 in libresolv-2.12.so[32ba200000+16000] in libresolv-2.12.so[32ba200000+16000]
Oct 21 11:16:39 svr-h002607 kernel:
Oct 21 11:16:39 svr-h002607 kernel: in libresolv-2.12.so[32ba200000+16000]
Oct 21 11:16:39 svr-h002607 kernel: in libresolv-2.12.so[32ba200000+16000]
Oct 21 11:16:40 svr-h002607 abrt[3993]: Saved core dump of pid 3987 (/usr/bin/php) to /var/spool/abrt/ccpp-2015-10-21-11:16:39-3987 (58740736 bytes)
Oct 21 11:16:40 svr-h002607 abrtd: Directory 'ccpp-2015-10-21-11:16:39-3987' creation detected
Oct 21 11:16:45 svr-h002607 abrtd: Generating core_backtrace
Oct 21 11:16:45 svr-h002607 abrtd: Duplicate: core backtrace
Oct 21 11:16:45 svr-h002607 abrtd: DUP_OF_DIR: /var/spool/abrt/ccpp-2015-10-21-09:20:11-24491
Oct 21 11:16:45 svr-h002607 abrtd: Deleting problem directory ccpp-2015-10-21-11:16:39-3987 (dup of ccpp-2015-10-21-09:20:11-24491)
Oct 21 11:16:46 svr-h002607 abrtd: Sending an email...
Oct 21 11:16:46 svr-h002607 abrtd: Email was sent to: root@localhost
Is this a known problem? Or am I missing something stupid?

I have tried re-installing, even using php-magickwand instead of php-pecl-imagick, but the same fault appears. Oh, I've also tried removing php-pecl-imagick and installing it from 'pecl install imagick'. While it installed fine, I still received the same error.

I'm kinda at my limit with troubleshooting it, so any suggestions would be very much appreciated.

Thank you,

Elliot

hgpit
Posts: 4
Joined: 2015-10-21T03:02:02-07:00
Authentication code: 1151

Re: "Segmentation fault" using writeImage()

Post by hgpit » 2015-10-29T09:53:14-07:00

Nevermind, I decided to just use PHP's GD functions instead.

Bonzo
Posts: 2971
Joined: 2006-05-20T08:08:19-07:00
Location: Cambridge, England

Re: "Segmentation fault" using writeImage()

Post by Bonzo » 2015-10-29T13:57:43-07:00

Imagick is not written or maintained by the developers of Imagemagick and as far as I know there are no regular users of it on this forum.

I assume you have tried something really simple like:

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$im = new imagick('input.jpg');
$im>resizeImage(100,100,imagick::FILTER_LANCZOS, TRUE);
$im->writeImage('output.jpg');
$im->destroy;

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