Bugs item #3074123, was opened at 2010-09-23 14:04
Message generated for change (Comment added) made by sf-robot
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https://sourceforge.net/tracker/?func=detail&atid=757416&aid=3074123&group_id=144022

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Category: Crasher/nasty bug
Group: Latest release
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: jack_spratt (jack_spratt)
Assigned to: Nobody/Anonymous (nobody)
Summary: segfault when rendering gif with quality >5

Initial Comment:
Whenever I redner my file as GIF with quality set as 5 or above synfig crashes 
with a segfault:


   synfig studio -- starting up application...

synfig(405) [15:24:14] info: Loading modules from /etc/synfig_modules.cfg

(synfigstudio:405): GLib-GObject-CRITICAL **: Object class 
gtkmm__CustomObject_N6studio15ValueBase_EntryE doesn't implement property 
'editing-canceled' from interface 'GtkCellEditable'
synfig(405) [15:24:33] info: curr_palette.size()=172
Segmentation fault

Please request more details from me if necessary.

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>Comment By: SourceForge Robot (sf-robot)
Date: 2010-10-23 21:20

Message:
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 30 days (the time period specified by
the administrator of this Tracker).

----------------------------------------------------------------------

Comment By: Rene Sugar (renesugar)
Date: 2010-10-05 02:26

Message:
If a crash is caused by a memory overwrite, you can sometimes find it by
using the Windows' pageheap feature if your computer has enough memory to
use it.

Run gflags.exe in the Debugging Tools for Windows to turn on the feature.
You need a computer with a lot of memory when using this feature since
memory allocations occur on page boundaries.

http://www.microsoft.com/whdc/devtools/debugging/default.mspx

If you can reproduce the crash, another option is to set up the Debugging
Tools for Windows on your computer and save a crash dump when you reproduce
the crash. A crash dump file can be loaded into windbg for debugging the
crash.

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Comment By: Genete (genete)
Date: 2010-09-23 20:43

Message:
I can't reproduce the problem with a simple sample file. Can you reproduce
it with any file to render or is it specific to a particular file? What's
the target you used to render the gif? (Auto, gif, Imagemagick, Magick++?)
If it is file dependent, please provide it to try to reproduce
Anyway, quality has to be set to lower values for better results and anti
aliasing to higher values for better anti aliasing. Quality = 1 is the best
and quality = 10 the worse. The aliasing doesn't increase so much above 3
but the render time does, so be careful.


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Comment By: jack_spratt (jack_spratt)
Date: 2010-09-23 14:06

Message:
CPU info:

cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 75
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
stepping        : 2
cpu MHz         : 2400.000
cache size      : 512 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic
cr8_legacy
bogomips        : 4810.13
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc

processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 75
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
stepping        : 2
cpu MHz         : 2400.000
cache size      : 512 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
apicid          : 1
initial apicid  : 1
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic
cr8_legacy
bogomips        : 4809.29
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc

----------------------------------------------------------------------

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