kernel/1806: PCVT fonts crash after XF4 started

[Alexander Yurchenko <grange@rt.mipt.ru>]

>Number:         1806
>Category:       kernel
>Synopsis:       PCVT fonts crash after XF4 started
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May  3 01:20:01 MDT 2001
>Last-Modified:
>Originator:     Alexander Y. Yurchenko
>Organization:

>Release:        2.9
>Environment:
	
	System      : OpenBSD 2.9
	Architecture: OpenBSD.i386
	Machine     : i386
>Description:
	When I load PCVT koi8 font with wsfontload and then start/kill XF4
	symbols with code > 127 becomes unreadable.
	
>How-To-Repeat:
	Compile kernel with 
	option  WSCONS_SUPPORT_PCVTFONTS

	Delete one of preconfigured screens:
	wsconscfg -Fd 5

	Load PCVT font:
	wsfontload -h 16 /usr/share/misc/pcvtfonts/koi8-8x16

	Reconfigure deleted screen:
	wsconscfg -t 80x25bf 5

	Restart getty:
	ps ax|grep ttyC5|xargs -n 1|kill

	Start/stop X:
	xinit
	Ctrl+Alt+Backspace

	Now switch to ttyC5 and press for example Alt+a,
	you'll see a very strange symbol, not one you expected.
	
>Fix:
	

>Audit-Trail:
>Unformatted: