Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!mcgill-vision!bloom-beacon!EXPO.LCS.MIT.EDU!rws
From: rws@EXPO.LCS.MIT.EDU (Bob Scheifler)
Newsgroups: comp.windows.x
Subject: Re: Copy_planes bug in R4
Message-ID: <9003021414.AA01478@expire.lcs.mit.edu>
Date: 2 Mar 90 14:14:37 GMT
References: <9003012033.AA13039@fornax.>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 21


    Can anyone tell me if the copy_planes bug
    is strictly a server phenomena or if it also relates to Xlib &/or
    intrinsics.

I'd say the server, but I can't really tell what your bug is.

    The fix that I think is pertinant was given in fix-1 as:
	"CopyPlane sometimes mis-fetches source"

As far as I know this didn't cause a server crash, it only caused bogus
pixels to appear on the screen.

    When I use our client with the R4 server, I get a complete server
    crash (sometimes) when doing a XCopyPlane from a pixmap to pixmap.

As usual, we can't diagnose such problems without information.  Please
supply a test program or some way of reliably reproducing the problem.
Please extract a stack trace from the server core file.  Please tell us
what machine, display, OS, and compiler you are using.  Please supply
any other information you think is relevant.