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[Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits |
Date: |
Tue, 24 Feb 2015 16:21:42 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0 |
Update of bug #41699 (project octave):
Status: In Progress => Confirmed
_______________________________________________________
Follow-up Comment #77:
Some progress, but the bug still remains.
Checking config.log, I see that OpenMP is detected and that there are lots of
instances of -fopenmp in the compilation step.
Installing in Windows and running Octave I can verify that
octave_config_info.features.OPENMP
ans = 1
But,
octave_config_info.CXXFLAGS
ans = -g -O2
I think this is because jwe modified the build process to put -pthreads and
-fopenmp somewhere else. Checking XTRA_CXXFLAGS,
XTRA_CXXFLAGS = -pthread -fopenmp -mieee-fp
So this seems okay.
But the acid test still fails,
octave:1> x = imformats ()
warning: your version of GraphicsMagick limits images to 8 bits per pixel
warning: called from
imformats>default_formats at line 256 column 11
imformats at line 79 column 3
x =
1x17 struct array containing the fields:
coder
ext
isa
info
read
write
alpha
description
multipage
octave:2> exit
panic: Segmentation violation -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
Looking at the compile log, the dldfcn __magick_read__.cc is definitely built
with -fopenmp. Maybe we need to also build the graphics magick library with
-fopenmp?
I looked in the log file for the MXE build of graphicsmagick and I see
checking for i686-w64-mingw32-gcc -std=gnu99 option to support OpenMP...
unsupported
I'm going to try to rebuild graphicsmagick with John D's patch in place and
see if that helps.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?41699>
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- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, (continued)
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Mike Miller, 2015/02/22
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/22
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/22
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/22
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/22
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/22
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/23
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/23
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/23
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits,
Rik <=
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Mike Miller, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, John Donoghue, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/24
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Mike Miller, 2015/02/25
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Mike Miller, 2015/02/28
- [Octave-bug-tracker] [bug #41699] imformats causes a segmentation fault on Windows when Octave exits, Rik, 2015/02/28