Re: bin/55973: ntpd(8) does not notice all interface changes any more

[Frank Kardel <kardel%kardel.name@localhost>]

The following reply was made to PR bin/55973; it has been noted by GNATS.

From: Frank Kardel <kardel%kardel.name@localhost>
To: gnats-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost,
 roy%NetBSD.org@localhost
Cc: 
Subject: Re: bin/55973: ntpd(8) does not notice all interface changes any more
Date: Thu, 4 Feb 2021 11:59:43 +0100

 seems like one of the last routing socket optimizations have gone
 
 unintendedly too far. Roy, could you please check?
 
 Frank
 
 
 On 02/04/21 10:55, martin%NetBSD.org@localhost wrote:
 >> Number:         55973
 >> Category:       bin
 >> Synopsis:       ntpd(8) does not notice all interface changes any more
 >> Confidential:   no
 >> Severity:       serious
 >> Priority:       medium
 >> Responsible:    bin-bug-people
 >> State:          open
 >> Class:          sw-bug
 >> Submitter-Id:   net
 >> Arrival-Date:   Thu Feb 04 09:55:00 +0000 2021
 >> Originator:     Martin Husemann
 >> Release:        NetBSD 9.99.79
 >> Organization:
 > The NetBSD Foundation, Inc.
 >> Environment:
 > System: NetBSD out-of-the-silent-planet.aprisoft.de 9.99.79 NetBSD 9.99.79 (GENERIC64) #187: Wed Feb 3 21:38:13 CET 2021 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/evbarm/compile/GENERIC64 evbarm
 > Architecture: aarch64
 > Machine: evbarm
 >> Description:
 > This board has no RTC clock so usualy picks up / file system time at boot.
 > Due to other (unrelated) bugs it also has no network connectivity early at
 > boot. This means dhcpcd does not configure network before ntpd(8) starts,
 > but shortly after that netwok becomes available.
 >
 > Nevertheless does ntpd stay in .INIT. state forever (actually only tested
 > for a few minutes):
 >
 >   > ntpq -p
 >       remote           refid      st t when poll reach   delay   offset  jitter
 > ==============================================================================
 >   emmas.aprisoft. .INIT.          16 u    -   64    0    0.000   +0.000   0.000
 >
 >
 > When I restart ntpd manually, it ~immediately establishes contact:
 >
 >   > ntpq -p
 >       remote           refid      st t when poll reach   delay   offset  jitter
 > ==============================================================================
 >   emmas.aprisoft. 44.66.217.167    3 u    2   64    1    0.114  +17976.   0.000
 >
 >
 > This used to work automatically w/o any manual intervention.
 >
 >> How-To-Repeat:
 > s/a
 >
 >> Fix:
 > n/a
 >