Blender Foundation: Blender 2.x BF release: Detail: 26135 Crash when disabling text-antialiasing in user prefs

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[#26135] Crash when disabling text-antialiasing in user prefs

Date:
2011-02-18 14:05 Priority:
3

State:
Closed

Submitted by:
Susanne H. (sanne) Assigned to:
Ton Roosendaal (ton)

Category:
Interface Status:
Fixed / Closed

Relates to: Duplicates:

Patches:

Summary:
Crash when disabling text-antialiasing in user prefs

Detailed description

When I try to disable text-antialiasing in user prefs -> system, Blender crashes. I did some investigation and found that the crash happens first with revision 34853, and it is still present today with revision 34958.

A backtrace for revision 34853 is attached.

Remark: to make Blender link, I had to user the corrected blender/source/blender/modifiers/SConscript from revision 34854.

Blender 2.56 svn
Ubuntu 9.10 64 Bit
Nvidia GeForce GT 220 with driver 182.18.36

Thanks,
Sanne

Followup

Message

Date: 2011-02-18 15:13
Sender: Susanne H.
Did some more digging and found that when I revert the changes from revision 34853 from files
blf_glyph.c and blf_font.c (remove the static keyword from lines 56 resp. 54), the crash doesn't happen anymore.

Patch against revision 34966 attached.

Date: 2011-02-18 17:13
Sender: Ton Roosendaal
Hi Sanne,

Good discovery this, but the fix still doesn't answer how this can work even (or ever did!).
It's a bad global, and I think it was meant to be copied from the other C file, using "extern". That I tried and works OK.

Will also ask the developer of this code to keep track of it.

Date: 2011-02-18 17:50
Sender: Susanne H.
Works fine now here also, thank you Ton.

Attached Files:

Name	Date	Download

aatext-option-bt-34853.txt	2011-02-18 14:05	Download
aatext-option-crash.patch	2011-02-18 15:14	Download

Changes:

Field	Old Value	Date	By

status_id	Open	2011-02-18 17:13	ton
close_date	None	2011-02-18 17:13	ton
assigned_to	none	2011-02-18 17:13	ton
Status	New	2011-02-18 17:13	ton
File Added	15058: aatext-option-crash.patch	2011-02-18 15:14	sanne
File Added	15056: aatext-option-bt-34853.txt	2011-02-18 14:05	sanne