segmentation fault error

mahmoud · 05-27-2008, 03:24 AM

Hi
i am getting an error for my analog reports does anyone know how to resolve this problem the error is:
/home/admin/run-analog: line 8: 31079 Segmentation fault rmagic ./$i
/home/admin/run-analog: line 8: 31080 Segmentation fault rmagic ./$i
/home/admin/run-analog: line 8: 31081 Segmentation fault rmagic ./$i
/home/admin/run-analog: line 8: 31082 Segmentation fault rmagic ./$i
/home/admin/run-analog: line 8: 31083 Segmentation fault rmagic ./$i
/home/admin/run-analog: line 8: 31084 Segmentation fault rmagic ./$i
/home/admin/run-analog: line 8: 31085 Segmentation fault rmagic ./$i
there is more but its the same just different numbers

BrianK · 05-27-2008, 08:09 PM

what is /home/admin/run-analog? Is it a shell script? binary program? Did you write it? Do you have the source for it?

Segmentation fault means that a program has read/written memory outside of its memory allocation. It's impossible to tell why it's doing that without looking at the code.

mahmoud · 05-28-2008, 04:49 AM

/home/admin/run-analog is a script that i use to run the report it has been working fine up till a couple of days ago
this is the script

Quote:

#!/bin/bash
cd /etc/analog/
#find /var/log/sitelogs/ -name "*.log" | xargs -L250 ~admin/dnstran1.5.2/dnstran -settings dnstran.conf
for i in `ls *.cfg`
do
analog +g$i
done
for i in `ls *.ini`
do
rmagic ./$i
done

# copy global previous report to a dated directory
mkdir -p /var/www/default_holding_page/reports/`date -d "$(date +%Y-%m-15) 1 month ago" +%Y-%m`
cp -r /var/www/default_holding_page/reports/prev /var/www/default_holding_page/reports/`date -d "$(date +%Y-%m-15) 1 month ago" +%Y-%m`

BrianK · 05-28-2008, 01:26 PM

is it possible that $i is empty?

maybe you (or someone else) changed an alias for 'ls' recently? If you "alias ls" does it give anything back?

mahmoud · 05-29-2008, 04:19 AM

yes
# alias ls
alias ls='ls $LS_OPTIONS'
i also tried running rmagic on its own it still came up with the error
#rmagic site.ini
Segmentation fault

i reinstalled rmagic and tried again i got
# rmagic site.ini
gd warning: one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully
Can't call method "can" on an undefined value at /usr/share/rmagic/wadg/rm/Settings.pm line 928.

BrianK · 05-29-2008, 04:34 PM

well, that alias line doesn't help at all without knowing what $LS_OPTIONS is.

that said, it sounds like you found your problem... rmagic is seg-faulting. Are you sure that site.ini file should work? I know nothing about rmagic (is it a Ruby binding for ImageMagick?), so it's going to be hard for me to help you from here on out, but I would double check that site.ini is a good file - maybe test it somewhere else with a working rmagic. If it's a good file, then I'd start looking at dependecies - something was probably updated without something else knowing about it. Did you install rmagic with your package management system or by hand? (that's a rhetorical question - if you did it by hand, I would try again with the package management system, even if it's an older version).

Good luck!

mahmoud · 05-30-2008, 03:29 AM

the funny thing is it was working fine till some certain updates came in i used debain testing
so the update must have affected it in some way also its broken on all my serevrs
and i just installed a fresh one on my machine and it is broken as well. so i tried reinstalling it using aptitude
this is the error
# rmagic site.ini

Quote:

gd warning: one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully
Can't call method "can" on an undefined value at /usr/share/rmagic/wadg/rm/Settings.pm line 928.

also it was working fine, site.ini is just an example for the many config files i have
here are examples of my .ini and .cgf files in the /etc/analog folder
.ini

Quote:

[statistics]
File_In = /var/www/site/public/reports/report.dat
Frame_File_Out = index.html
Format= XHTML 1.0
Verbose = E

[reports]
Active_Column=R
File_Out = /var/www/site/public/reports/

Title_Font = Helvetica,Arial,sans-serif
Title_BG_Color = #000000
Title_Font_Color = #FFCC00

Data_Font = Helvetica,Arial,sans-serif
Data_Color_1 = #D0FFD0
Data_Color_2 = #F0FFF0
Data_Total_Color = #FFCC66
Data_Header_Color = #9999CC

[QUICK]
Rows = ALL

[graphs]
BG_Color = #FFFFCC

[navigation]
File_Out = nav.html

[website]
Title = Web Statistics for www.site.com
Webmaster = info@domain.co.uk
Base_URL = http://www.site.com

.cfg

Quote:

OUTFILE /var/www/site/public/reports/report.dat
APACHELOGFORMAT (%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" \"%{forensic-id}n\")
APACHELOGFORMAT (%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\")
LOGFILE /var/log/sitelogs/*site-access.log
LOGFILE /var/log/sitelogs/*site-access.log.gz
HOSTNAME "www.site.com"
HOSTURL "http://www.site.com"
IMAGEDIR "http://www.site.com/reports/"
REFREPEXCLUDE http://www.site.com/*
REFSITEEXCLUDE http://www.site.com/
CONFIGFILE ./common.inc

i also checked in the syslog and found and error
May 30 10:20:29 gaffer kernel: rmagic[29640]: segfault at 0000000b eip 08097496 esp bfb03098 error 4

chetoo · 06-11-2008, 11:24 AM

Quote:

Originally Posted by mahmoud

yes
i reinstalled rmagic and tried again i got
# rmagic site.ini
gd warning: one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully
Can't call method "can" on an undefined value at /usr/share/rmagic/wadg/rm/Settings.pm line 928.

I get a similar one:

Code:

gd warning: one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully
Can't call method "can" on an undefined value at /usr/share/rmagic/wadg/rm/Settings.pm line 918.

Mine is:

Code:

# cat /etc/issue      
Debian GNU/Linux lenny/sid \n \l

kenmiles · 10-22-2008, 06:29 AM

Quote:

Originally Posted by chetoo

I get a similar one:

Code:

gd warning: one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully
Can't call method "can" on an undefined value at /usr/share/rmagic/wadg/rm/Settings.pm line 918.

Did you ever find a solution to this problem as I am getting the same when trying to run rmagic.
Regards, Kenneth.

chetoo · 10-26-2008, 05:31 AM

Quote:

Originally Posted by kenmiles

Did you ever find a solution to this problem as I am getting the same when trying to run rmagic.
Regards, Kenneth.

Nop, still the same some months after, and even after a dist-upgrade. Could it be some weird data on hte log files? I do not know.

jwadsack · 02-24-2009, 01:11 PM

A solution was posted over at Launchpad (see below). You need to make a minor patch to the Settings.pm file because of a change in how gd library works.

--- Settings-orig.pm 2009-01-09 08:42:44.000000000 +0900
+++ Settings.pm 2009-01-09 08:43:07.000000000 +0900
@@ -907,7 +907,7 @@
# Check GD for support of desired output format. If none
# given or not capable, then set output format accordingly.
#
- my $g = new GD::Image(0,0);
+ my $g = new GD::Image(1,1);

if( defined $self->val( 'graphs', 'Format' ) ) {
if( $self->val( 'graphs', 'Format' ) =~ /jpe?g/i ) {

I have verified that this works. I'll get a patched Report Magic released in a few weeks but it may take a while to get through the distros.

--
Jeremy Wadsack

Forum won't let me post a URL so you'll have to piece this together:

https
://
bugs.
launchpad.
net/ubuntu/+source/rmagic/+bug/315280

jwadsack · 02-24-2009, 01:12 PM

Here's the URL in once piece (so that search engines can credit the source and provide affinity):

https://bugs.launchpad.net/ubuntu/+s...ic/+bug/315280