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Received: by minnie.vk1xwt.ampr.org with NNTP id AA5738 ; Fri, 01 Jan 93 01:54:18 EST Newsgroups: comp.unix.bsd Path: sserve!manuel.anu.edu.au!munnari.oz.au!uunet!paladin.american.edu!gatech!swrinde!cs.utexas.edu!hellgate.utah.edu!fcom.cc.utah.edu!cs.weber.edu!terry 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. -- ------------------------------------------------------------------------------- "I have an 8 user poetic license" - me Get the 386bsd FAQ from agate.berkeley.edu:/pub/386BSD/386bsd-0.1/unofficial -------------------------------------------------------------------------------