kern/42617: -current, pseudo ttys, telnetd and echo on/off doesn't work as expected

[leo%marco.de@localhost]

>Number:         42617
>Category:       kern
>Synopsis:       -current, pseudo ttys, telnetd and echo on/off doesn't work as 
>expected
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 14 09:20:00 +0000 2010
>Originator:     leo%marco.de@localhost
>Release:        NetBSD-current
>Organization:
Matthias Pfaller                            Software Entwicklung
marco Systemanalyse und Entwicklung GmbH    Tel   +49 8131 5161 41
Hans-Böckler-Str. 2, D 85221 Dachau         Fax   +49 8131 5161 66
http://www.marco.de/                        Email leo%marco.de@localhost
>Environment:
        
        
System: NetBSD zork 5.0_STABLE NetBSD 5.0_STABLE (ZORK) #4: Mon Jan 4 20:00:04 
CET 2010 leo@slug:/usr/src-5/sys/arch/amd64/compile/ZORK amd64
Architecture: x86_64
Machine: amd64
>Description:
        When I telnet into a NetBSD machine running a -current kernel on a
        netbsd-5 userland, echo will not be turned off during password entry.
        Lineediting in bash will not work after logging in. I have to drop
        to the telnet prompt and issue a "mode char" to get things working.
        Booting the same userland with a netbsd-5 kernel makes the problem
        go away as well.
        Same thing happens on a -current userland with a -current kernel.
>How-To-Repeat:
        telnet into a netbsd box running a -current kernel.
>Fix:
        ^]mode char... :-(

>Unformatted: