NetNews Usenet Archive 1992 #31/NN_1992_31.iso/spool/comp/unix/bsd/10781

Text File | 1992-12-30 | 3.3 KB | 81 lines

Newsgroups: comp.unix.bsd
Path: sparky!uunet!munnari.oz.au!metro!news
From: [e-mail] (David Dawes)
Subject: Re: XFree86 problem in XDrawSegments
Message-ID: <[e-mail]>
Sender: [e-mail]
Nntp-Posting-Host: physics.su.oz.au
Organization: School of Physics, University of Sydney, Australia
References: <[e-mail]> <[e-mail]> <[e-mail]>
Date: Thu, 31 Dec 1992 03:01:08 GMT
Lines: 68

In article <[e-mail]> [e-mail] (Thomas David Rivers) writes:
>In article <[e-mail]> [e-mail] (A Wizard of Earth C) writes:
>>In article <[e-mail]> [e-mail] (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
>>                    [e-mail]
>>                    [e-mail]
>>---
>>Any opinions in this posting are my own and not those of my present
>>or previous employers.
>>--
>>-------------------------------------------------------------------------------
>>                                        "I have an 8 user poetic license" - me
>> Get the 386bsd FAQ from agate.berkeley.edu:/pub/386BSD/386bsd-0.1/unofficial
>>-------------------------------------------------------------------------------
>
>
>
> Well, I was anxious and since that sounded plausible, I tried it out.
>
> Unfortunately, it didn't seem to change the situation.  I'm beginning
> to wonder if this is simply a R5 problem - except that I build it
> regularly at work with my own R5 X libraries for the IBM 370 (really, honest.)

I've built and run cbzone on XFree86 on a SVR4 box -- without any
problems.  The version of cbzone I have is PatchLevel 0.

David
--
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 David Dawes <[e-mail]>    DoD#210      | Phone: [phone]
 School of Physics, University of Sydney, Australia   | Fax:   [phone]
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 I was so satisfied, deep down inside, like a hand in a velvet glove -- AC/DC
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