From: Ive Akkermans (Ive.Akkermans++at++esat.kuleuven.ac.be)
Date: 05/02/2002 07:52:10
Hi everyone,
I'm having some very strange problems with my textures. Sometimes,
after Performer has loaded my .pfb models and their textures, I get the
following error for everyone of these textures:
PF Warning/Internal(12): gluBuild2DMipmaps failed on wall.sgi
(id=2076)
PF Defaulting to bilinear.
Although I'm sure my textures are properly formatted (2^n * 2^n, true
sgi format etc...) ! After these errors, my app immediately segfaults:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1024 (LWP 19205)]
0x40c1cb00 in gluScaleImage () from /usr/lib/libGLU.so.1
(gdb) info stack
#0 0x40c1cb00 in gluScaleImage () from /usr/lib/libGLU.so.1
#1 0x00000005 in ?? ()
Cannot access memory at address 0x24a77d0
(I can't make anything of this, looks like corrupted memory to me)
But the weirdest thing is, I don't get this error always ! It only
happens from time to time... I noticed that, if I don't run my app for a
long time (let's say an hour or so), the error doesn't occur. But when
I start running it too much, the error re-occurs more and more often,
until it happens approx. 9 times out of 10. This is very annoying while
testing code.
Could this be a sort of hardware failure ? (Other GL- or non-GL apps
never crash)
Please, if anyone knows of this problem, or has an idea as how I can
solve this, I'd be very grateful !! This is driving me insane :(
Hardware specs:
Intel Pentium III 730 MHz w/ 256kb
384MB Ram
RedHat 7.1 (Seawolf)
NVidia GeForce2 GTS
Software:
OpenGL Performer 2.5
Kernel 2.4.18
Nvidia 28.02 drivers
(from glxinfo:)
OpengL 1.3.1
glu version: 1.1 Mesa 3.4.2
glu extensions: GL_EXT_abgr
Many thanks for any response,
ive.
-- Ive Akkermans K.U.Leuven - ESAT-PSI tel: +32-16-32.17.06 fax: +32-16-32.17.23 Kasteelpark Arenberg 10 e-mail:ive.akkermans++at++esat.kuleuven.ac.be B-3001 Leuven-Heverlee http://www.esat.kuleuven.ac.be/psi/visics/
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