kern/55341: ddb pager's 'q' command does not work in during ddb.commandonenter

[martin%NetBSD.org@localhost]

>Number:         55341
>Category:       kern
>Synopsis:       ddb pager's 'q' command does not work in during ddb.commandonenter
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 03 17:50:00 +0000 2020
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.64
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD seven-days-to-the-wolves.aprisoft.de 9.99.64 NetBSD 9.99.64 (GENERIC) #396: Sun May 31 11:06:59 CEST 2020 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

When entering ddb (e.g. on panic) with

	ddb.commandonenter = trace;show registers

quite a bit of output can be caused, which might be slow on a slow console
or otherwise unwanted. When the ddb pager asks for --db_more-- it usually
accepts 'q' as an answer and longjmps to the command loop (via db_error(0)).

This does not (yet) work during commandonenter handling.

>How-To-Repeat:
s/a

>Fix:
n/a