NetBSD Problem Report #59974

From www@netbsd.org  Sun Feb  8 00:51:30 2026
Return-Path: <www@netbsd.org>
Received: from mail.netbsd.org (mail.netbsd.org [199.233.217.200])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
	 client-signature RSA-PSS (2048 bits) client-digest SHA256)
	(Client CN "mail.netbsd.org", Issuer "R13" (verified OK))
	by mollari.NetBSD.org (Postfix) with ESMTPS id 864BA1A923D
	for <gnats-bugs@gnats.NetBSD.org>; Sun,  8 Feb 2026 00:51:30 +0000 (UTC)
Message-Id: <20260208005129.7B5041A923E@mollari.NetBSD.org>
Date: Sun,  8 Feb 2026 00:51:29 +0000 (UTC)
From: campbell+netbsd@mumble.net
Reply-To: campbell+netbsd@mumble.net
To: gnats-bugs@NetBSD.org
Subject: xenbus0: autoconfiguration error: can't get state for device/suspend/event-channel (2)
X-Send-Pr-Version: www-1.0
X-From4GNATS: "campbell+netbsd@mumble.net via gnats" <gnats-admin@NetBSD.org>

>Number:         59974
>Category:       port-xen
>Synopsis:       xenbus0: autoconfiguration error: can't get state for device/suspend/event-channel (2)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-xen-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Feb 08 00:55:00 +0000 2026
>Originator:     Taylor R Campbell
>Release:        10
>Organization:
>Environment:
>Description:
When I boot a NetBSD 10.1 domU, I get various message like this without any context or information about what is wrong:

[     1.000000] timecounter: Timecounter "xen_system_time" frequency 1000000000 Hz quality 10000
[     1.000003] Xen vcpu0 clock: using event channel 5
[     1.000003] timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
[     1.000003] xenbus0: using event channel 1
[     1.000003] xenbus0: autoconfiguration error: can't get state for device/suspend/event-channel (2)
[     1.000003] IPsec: Initialized Security Association Processing.

Either the message is important and it needs to be explained more clearly and the underlying cause is a problem that needs to be fixed, or the message is harmful because it causes warning fatigue.
>How-To-Repeat:
boot NetBSD-10.1 amd64 live image as Xen domU
>Fix:
Yes, please!  Either delete the message or fix the underlying problem.

NetBSD Home
NetBSD PR Database Search

(Contact us) $NetBSD: query-full-pr,v 1.51 2026/08/10 02:28:17 riastradh Exp $
$NetBSD: gnats_config.sh,v 1.10 2026/05/13 22:00:09 riastradh Exp $
Copyright © 1994-2026 The NetBSD Foundation, Inc. ALL RIGHTS RESERVED.