🚀 go-pugleaf

About a month ago, I posted a message of which this is a synopsis:
> Environment: Sun 4/40 (IPC), SunOS 4.1
> 	     MIT X11R4 (patch level 18) server
> 	     window manager: OpenWindows 2.0 olwm << OR >> X11R4(18) twm
> 	     compilation of X11R4 with Sun's bundled cc
> 
> The client /usr/openwin/bin/xview/mailtool sometimes crashes the
> server.  The problem occurs when deleting the message at the end of the
> list of messages. It looks as if the window containing the message
> headings is extended to the bottom of the screen (overwriting all other
> windows, including the window manager's decorations).   From dbx:
> 
>     program terminated by signal SEGV (no mapping at the fault address)
>     (dbx) where
>     cfbFillBoxSolid() at 0x10e44
>     cfbPaintWindow() at 0x7e34
>     miSpritePaintWindowBackground() at 0x925c0
>     miHandleExposures() at 0x88d08
>     cfbCopyArea() at 0xc1d8
>     miSpriteCopyArea() at 0x933ac
>     ProcCopyArea() at 0x2bb98
>     Dispatch() at 0x29300
>     main() at 0x3ae04


I got a response from Fred Romelfanger <uunet!stsci.edu!fred> who reported
in part:
> I run X11R4 (p18) built with Sun C 1.0 on a SS1+ GX.  I have used olwm,
> twm, and olvwm with mailtool and haven't run into any problems with the
> server dying.  The only real difference I see is that I am also using the
> xview libraries compiled from source.

I got responses from the following people using slightly different
environments, but all OW mailtool on MIT X11R4 server, to report the
same problem with no solution:

> ytliu@ee.nthu.edu.tw (Yuan-Der Liu)
> National Tsing Hua University
> Department of Electrical Engineering
> Hsinchu, Taiwan, ROC
> 
> Francois Staes
> Origin/Technology Support
> Eindhoven, The Netherlands.
> uunet!phcisa!frans (Francois Staes)
> 
> 
> UUCP:	 ...!ukc!warwick!steve		Internet: steve@maths.warwick.ac.uk
> JANET:	 steve@uk.ac.warwick.maths	PHONE:	 +44 203 524657
> 
> Chris Crampton.			uucp:  cmc@ecrc.uucp ..!unido!ecrc!cmc
> ECRC GmbH		    Internet:  cmc@ecrc.de
> Arabellastrasse 17
> D-8000 Munich 81
> Germany				Tel.:  +49 89 92699  138
> 
> +-----------------+---------------------------+-----------------------------+
> | Bill Poitras    | Polygen Corporation       | {princeton mit-eddie        |
> |     (bill)      | Waltham, MA USA           |  bu sunne}!polygen!bill     |
> |                 | FAX (617)890-8694         | bill@polygen.com            |
> +-----------------+---------------------------+-----------------------------+

So it appears that the problem is real, but no one knows quite what it
is.  Mailtool is probably doing something it shouldn't, but the server 
should protect itself against such things.