Marc Erich Latoschik (marcl++at++TechFak.Uni-Bielefeld.DE)
Fri, 20 Nov 1998 10:14:34 +0100
As i wrote in a former mail i am currently porting a Performer 2.0 based
n32 application on irix 6.2 compiled with CC 7.2 to
Performer 2.2 on Irix 6.4 (Octane) and compiler version 7.2.1.
First i encountered "_pfDirtCheck: pfRealloc of 0 bytes returned NULL"
during
every start of the ported application. (The old one is running fine with
no problems)
I could get rid of this error by linking SGI's specific lib malloc into
the app.
You might allready know the definition problem of realloc(0) in
different
stdlibs.
Now the new application starts "most of the time". Meaning sometimes i
get the
error again. Restarting it then helps most of the time...;).
BUT...
In about 9 of 10 cases you can see nothing or distorted geometry on the
screen,
the window stays blank or it displays only red flickering tiles or
stripes
where objects should be displayed on the screen. The application runs
on, and no errors occure.
I have lots of debug output in my code and it says that the application
is
doing what it should. Well, but as u can inspect it doesnt do it
visually of course.
I really don't know if this is a software or hardware (pipe) problem. I
think it is
software (due to the realloc problem?). Maybe something with the memory
management.
Because i can start all other viewers, gview, perfly or even when i use
the maschine
as a remote display and let the old (not ported) application run on a
different maschine
everything is fine.
The behaviour obly starts when i use the newly compiled app on the local
irix6.4 maschine.
I have no further clues...
Does somebody have one?
--bye Marc
******************************************************************************** Marc Erich Latoschik, AG-WBS, Technische Fakultaet der Universitaet Bielefeld
Universitaetsstrasse 25 Postfach 100 131 33501 Bielefeld Raum M4-122 Fon: (0521) 106 2919 Fax: (0521) 106 2962
marcl++at++techfak.uni-bielefeld.de http://www.TechFak.Uni-Bielefeld.DE/techfak/persons/marcl/ ********************************************************************************
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