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From: terry@cs.weber.edu (A Wizard of Earth C)
Subject: Re: XFree86 problem in XDrawSegments
Message-ID: <1992Dec30.063602.8978@fcom.cc.utah.edu>
Sender: news@fcom.cc.utah.edu
Organization: Weber State University (Ogden, UT)
References: <1992Dec30.013451.13074@ponds.uucp>
Date: Wed, 30 Dec 92 06:36:02 GMT
Lines: 46
In article <1992Dec30.013451.13074@ponds.uucp> rivers@ponds.uucp (Thomas David Rivers) writes:
>
> In trying to get cbzone up and running in 386bsd; I discovered the
> following problem.
>
> I'm using XFree86 version 1.1 as available on agate.
>
> After the game starts up (opens the display and does some drawing) it
> will bomb out with the following message:
>
>XIO: fatal IO error 14 (Bad address) on X server ":0.0"
> after 400 requests (399 known processed) with 17 events remaining.
>
>
> A breakpoint in _XDefaultIOError() reveals the following traceback:
>
> _XDefaultIOError()
> _XIOError()
> _XSend()
> _XDrawSegments()
> multiline() <----- cbzone function
> drawhorizone() <----- cbzone function
> main()() <----- cbzone function
>
> It would appear that something is wrong in XDrawSegments....
>
> Has anyone else run into this?
I have run into a similar problem (resulting in "BadMatch" errors) on an
AT&T X terminal. The problem traced back to a modification of the GC
occurring before a draw, but not being forced to take effect (basically,
an event queueing problem). Using an XSync( Display, False); prior to
the draw fixed the problem.
Terry Lambert
terry@icarus.weber.edu
terry_lambert@novell.com
---
Any opinions in this posting are my own and not those of my present
or previous employers.
--
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