[Bug 290728] Re: xvidcap fails to record multi- or single- frame

[shaman.sir]

Yes, the same issue @ 9.04

-- 
xvidcap fails to record multi- or single- frame
https://bugs.launchpad.net/bugs/290728
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[Bug 289925] Re: Segmentation fault on amd64 in glutInitDisplayMode()

[shaman.sir]

The same on i686 Ubuntu 8.10/Python2.6/PyOpenGL 3.0.0c1

but the cause seems to be another

:~$ python --version
Python 2.6.2

:~$ uname -a
Linux  2.6.27-11-generic #1 SMP Wed Apr 1 20:57:48 UTC 2009 i686 
GNU/Linux

:~$ python
Python 2.6.2 (r262:71600, Apr 16 2009, 10:57:41) 
[GCC 4.3.2] on linux2
>>> import OpenGL
>>> OpenGL.__version__
'3.0.0c1'

:~$ gdb python
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
(gdb) run
Starting program: /usr/local/bin/python 
[Thread debugging using libthread_db enabled]
Python 2.6.2 (r262:71600, Apr 16 2009, 10:57:41) 
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
[New Thread 0xb7e8c8c0 (LWP 20735)]
>>> from OpenGL import GLUT
>>> GLUT.glutInitDisplayMode(GLUT.GLUT_RGBA | GLUT.GLUT_DOUBLE)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7e8c8c0 (LWP 20735)]
0xb7c26156 in glGetError () from /usr/lib/libGL.so.1
(gdb) bt
#0  0xb7c26156 in glGetError () from /usr/lib/libGL.so.1
#1  0xb7cdbf67 in ffi_call_SYSV ()
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/libffi/src/x86/sysv.S:61
#2  0xb7cdbda6 in ffi_call (cif=0xbfc603a8, fn=0xb7c26150 , 
rvalue=0x0, avalue=0xbfc60420)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/libffi/src/x86/ffi.c:213
#3  0xb7cd64aa in _CallProc (pProc=0xb7c26150 , 
argtuple=0xb7e4c02c, flags=, argtypes=0x0, 
restype=0x93402f4, checker=0x0)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/callproc.c:815
#4  0xb7ccdda9 in CFuncPtr_call (self=0xb7c617e4, inargs=0xb7e4c02c, kwds=0x0)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/_ctypes.c:3857
#5  0x0805f6ca in PyObject_Call (func=0xb7c617e4, arg=0xb7e4c02c, kw=0x0)
at Objects/abstract.c:2492
#6  0x080dace2 in PyEval_EvalFrameEx (f=0x93ae2ac, throwflag=0)
at Python/ceval.c:3917
#7  0x080dddb8 in PyEval_EvalCodeEx (co=0xb7c7ee78, globals=0xb7c8802c, 
locals=0x0, args=0xb7e3d970, argcount=4, kws=0x0, kwcount=0, 
defs=0xb7c83cf8, defcount=2, closure=0x0) at Python/ceval.c:2968
---Type  to continue, or q  to quit---
#8  0x0813206f in function_call (func=0xb7c7f844, arg=0xb7e3d964, kw=0x0)
at Objects/funcobject.c:524
#9  0x0805f6ca in PyObject_Call (func=0xb7c7f844, arg=0xb7e3d964, kw=0x0)
at Objects/abstract.c:2492
#10 0x080665ca in instancemethod_call (func=0xb7c7f844, arg=0xb7e3d964, kw=0x0)
at Objects/classobject.c:2579
#11 0x080640d1 in PyObject_CallFunctionObjArgs (callable=0xb7d21eb4)
at Objects/abstract.c:2492
#12 0xb7ccdde3 in CFuncPtr_call (self=0xb78bd984, inargs=0xb7e7ad0c, kwds=0x0)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/_ctypes.c:3873
#13 0x0805f6ca in PyObject_Call (func=0xb78bd984, arg=0xb7e7ad0c, kw=0x0)
at Objects/abstract.c:2492
#14 0x080dace2 in PyEval_EvalFrameEx (f=0x933028c, throwflag=0)
at Python/ceval.c:3917
#15 0x080dddb8 in PyEval_EvalCodeEx (co=0xb7e18e30, globals=0xb7e6f0b4, 
locals=0xb7e6f0b4, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0) at Python/ceval.c:2968
#16 0x080ddf17 in PyEval_EvalCode (co=0xb7e18e30, globals=0xb7e6f0b4, 
locals=0xb7e6f0b4) at Python/ceval.c:522
#17 0x080fb6b5 in PyRun_InteractiveOneFlags (fp=0xb7fe7420, 
filename=0x81490df "", flags=0xbfc61148) at Python/pythonrun.c:1335
#18 0x080fb948 in PyRun_InteractiveLoopFlags (fp=0xb7fe7420, 
---Type  to continue, or q  to quit---
filename=0x81490df "", flags=0xbfc61148) at Python/pythonrun.c:760
#19 0x080fc186 in PyRun_AnyFileExFlags (fp=0xb7fe7420, 
filename=0x81490df "", closeit=0, flags=0xbfc61148)
at Python/pythonrun.c:729
#20 0x0805ae42 in Py_Main (argc=0, argv=0xbfc61214) at Modules/main.c:599
#21 0x08059f32 in main (argc=-1077541912, argv=0xb7cdbda6)
at ./Modules/python.c:23

-- 
Segmentation fault on amd64 in glutInitDisplayMode()
https://bugs.launchpad.net/bugs/289925
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[Bug 289925] Re: Segmentation fault on amd64 in glutInitDisplayMode()

[shaman.sir]

sudo apt-get install xorg-driver-fglrx

this installation is fixed the problem. So, if it is possible to make a
message about the drivers requirement while installing the module, it
will be perfect

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Segmentation fault on amd64 in glutInitDisplayMode()
https://bugs.launchpad.net/bugs/289925
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[Bug 289925] Re: Segmentation fault on amd64 in glutInitDisplayMode()

[shaman.sir]

I've tried this with an internal Intel video card: it showed the window,
but it there were some artifacts and the window was unable to do
anything (close/maximize/resize) and showed Segmentation Fault when
window is closed with Alt+F4. I've clearly removed all ati fglrx
drivers, made a reboot. and it fails with Segmentation Fault again:

So, if I'll follow the logic with ATI drivers, I need an Intel drivers,
but they are pre-installed with Ubuntu 8.10

...
>>> from OpenGL import GLUT
>>> GLUT.glutInitDisplayMode(GLUT.GLUT_RGBA | GLUT.GLUT_DOUBLE)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7d588c0 (LWP 6055)]
0xb7af2156 in glGetError () from /usr/lib/libGL.so.1
(gdb) bt
#0  0xb7af2156 in glGetError () from /usr/lib/libGL.so.1
#1  0xb7ba7f67 in ffi_call_SYSV ()
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/libffi/src/x86/sysv.S:61
#2  0xb7ba7da6 in ffi_call (cif=0xbf929018, fn=0xb7af2150 , 
rvalue=0x0, avalue=0xbf929090)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/libffi/src/x86/ffi.c:213
#3  0xb7ba24aa in _CallProc (pProc=0xb7af2150 , 
argtuple=0xb7d1802c, flags=, argtypes=0x0, 
restype=0xa19d444, checker=0x0)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/callproc.c:815
#4  0xb7b99da9 in CFuncPtr_call (self=0xb7b287e4, inargs=0xb7d1802c, kwds=0x0)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/_ctypes.c:3857
#5  0x0805f6ca in PyObject_Call (func=0xb7b287e4, arg=0xb7d1802c, kw=0x0)
at Objects/abstract.c:2492
#6  0x080dace2 in PyEval_EvalFrameEx (f=0xa20af34, throwflag=0)
at Python/ceval.c:3917
#7  0x080dddb8 in PyEval_EvalCodeEx (co=0xb7b45e78, globals=0xb7b4f02c, 
locals=0x0, args=0xb7d09948, argcount=4, kws=0x0, kwcount=0, 
defs=0xb7b4acf8, defcount=2, closure=0x0) at Python/ceval.c:2968
---Type  to continue, or q  to quit--- 
#8  0x0813206f in function_call (func=0xb7b46844, arg=0xb7d0993c, kw=0x0)
at Objects/funcobject.c:524
#9  0x0805f6ca in PyObject_Call (func=0xb7b46844, arg=0xb7d0993c, kw=0x0)
at Objects/abstract.c:2492
#10 0x080665ca in instancemethod_call (func=0xb7b46844, arg=0xb7d0993c, kw=0x0)
at Objects/classobject.c:2579
#11 0x080640d1 in PyObject_CallFunctionObjArgs (callable=0xb7bede8c)
at Objects/abstract.c:2492
#12 0xb7b99de3 in CFuncPtr_call (self=0xb7789984, inargs=0xb7d46d0c, kwds=0x0)
at 
/home/shamansir/Software/Packages/Python-2.6.2/Modules/_ctypes/_ctypes.c:3873
#13 0x0805f6ca in PyObject_Call (func=0xb7789984, arg=0xb7d46d0c, kw=0x0)
at Objects/abstract.c:2492
#14 0x080dace2 in PyEval_EvalFrameEx (f=0xa187034, throwflag=0)
at Python/ceval.c:3917
#15 0x080dddb8 in PyEval_EvalCodeEx (co=0xb7ce4e30, globals=0xb7d3b0b4, 
locals=0xb7d3b0b4, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0) at Python/ceval.c:2968
#16 0x080ddf17 in PyEval_EvalCode (co=0xb7ce4e30, globals=0xb7d3b0b4, 
locals=0xb7d3b0b4) at Python/ceval.c:522
#17 0x080fb6b5 in PyRun_InteractiveOneFlags (fp=0xb7eb3420, 
filename=0x81490df "", flags=0xbf929db8) at Python/pythonrun.c:1335
#18 0x080fb948 in PyRun_InteractiveLoopFlags (fp=0xb7eb3420, 
---Type  to continue, or q  to quit---
filename=0x81490df "", flags=0xbf929db8) at Python/pythonrun.c:760
#19 0x080fc186 in PyRun_AnyFileExFlags (fp=0xb7eb3420, 
filename=0x81490df "", closeit=0, flags=0xbf929db8)
at Python/pythonrun.c:729
#20 0x0805ae42 in Py_Main (argc=0, argv=0xbf929e84) at Modules/main.c:599
#21 0x08059f32 in main (argc=-1080913832, argv=0xb7ba7da6)
at ./Modules/python.c:23

$ lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 82G965 Integrated 
Graphics Controller [8086:29a2] (rev 02)

$ dpkg -l | grep glx
ii  libgl1-mesa-glx7.2-1ubuntu2 
   A free implementation of the OpenGL API -- G
ii  libglitz-glx1  0.5.6-1  
   Glitz OpenGL library GLX backend
ii  rss-glx0.8.1-10ubuntu2  
   Really Slick Screensavers GLX Port

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Segmentation fault on amd64 in glutInitDisplayMode()
https://bugs.launchpad.net/bugs/289925
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[Bug 289925] Re: Segmentation fault on amd64 in glutInitDisplayMode()

[shaman.sir]

Yes, making the code look like this, completely resolves this
segmentation fault problem:

GLUT.glutInit(sys.argv)
GLUT.glutCreateWindow('foobar') # required to be a line before 
glutInitDisplay
GLUT.glutInitDisplayMode(GLUT.GLUT_RGBA | GLUT.GLUT_DOUBLE)

(thanks to: http://henryestaescrevendo.blogspot.com/2009/03/pyopengl-
segmentation-fault.html and a ~gibbsrc comment above)

Sorry for the big number of comments

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Segmentation fault on amd64 in glutInitDisplayMode()
https://bugs.launchpad.net/bugs/289925
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[Bug 289925] Re: Segmentation fault on amd64 in glutInitDisplayMode()

[shaman.sir]

Pyglet is ok for my configuration (no segmentation or any other (except
sound, when it used) failures in hello_world or any other example from
source package), but the PyOpenGL lines, described above, still fail.

Ubuntu 9.04
Python 2.6.2
pyglet 1.1.3
Intel Graphics Video Card

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Segmentation fault on amd64 in glutInitDisplayMode()
https://bugs.launchpad.net/bugs/289925
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