From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58E1BC63697 for ; Wed, 18 Nov 2020 09:28:50 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B96212463B for ; Wed, 18 Nov 2020 09:28:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B96212463B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=antioche.eu.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.29653.59231 (Exim 4.92) (envelope-from ) id 1kfJlP-0006HP-Sy; Wed, 18 Nov 2020 09:28:31 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 29653.59231; Wed, 18 Nov 2020 09:28:31 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfJlP-0006HI-Pl; Wed, 18 Nov 2020 09:28:31 +0000 Received: by outflank-mailman (input) for mailman id 29653; Wed, 18 Nov 2020 09:28:30 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfJlN-0006HD-V5 for xen-devel@lists.xenproject.org; Wed, 18 Nov 2020 09:28:29 +0000 Received: from chassiron.antioche.eu.org (unknown [2001:41d0:fe9d:1101::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 1a2ac49f-803b-43d9-93ad-2492f99da677; Wed, 18 Nov 2020 09:28:29 +0000 (UTC) Received: from sandettie.soc.lip6.fr (82-64-3-41.subs.proxad.net [82.64.3.41]) by chassiron.antioche.eu.org (8.15.2/8.15.2) with ESMTPS id 0AI9SOHZ001422 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Wed, 18 Nov 2020 10:28:25 +0100 (MET) Received: by sandettie.soc.lip6.fr (Postfix, from userid 373) id 40B382E9CA8; Wed, 18 Nov 2020 10:28:19 +0100 (MET) Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfJlN-0006HD-V5 for xen-devel@lists.xenproject.org; Wed, 18 Nov 2020 09:28:29 +0000 X-Inumbo-ID: 1a2ac49f-803b-43d9-93ad-2492f99da677 Received: from chassiron.antioche.eu.org (unknown [2001:41d0:fe9d:1101::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 1a2ac49f-803b-43d9-93ad-2492f99da677; Wed, 18 Nov 2020 09:28:29 +0000 (UTC) Received: from sandettie.soc.lip6.fr (82-64-3-41.subs.proxad.net [82.64.3.41]) by chassiron.antioche.eu.org (8.15.2/8.15.2) with ESMTPS id 0AI9SOHZ001422 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Wed, 18 Nov 2020 10:28:25 +0100 (MET) Received: by sandettie.soc.lip6.fr (Postfix, from userid 373) id 40B382E9CA8; Wed, 18 Nov 2020 10:28:19 +0100 (MET) Date: Wed, 18 Nov 2020 10:28:19 +0100 From: Manuel Bouyer To: Jan Beulich Cc: xen-devel@lists.xenproject.org, Roger Pau =?iso-8859-1?Q?Monn=E9?= Subject: Re: NetBSD dom0 PVH: hardware interrupts stalls Message-ID: <20201118092819.GE1085@antioche.eu.org> References: <20201117150949.GA3791@antioche.eu.org> <20201117155807.a7jgmftnj6njg6oz@Air-de-Roger> <20201117164033.GB3093@antioche.eu.org> <8039a29c-4058-ab6e-56ef-d1383deb7e38@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8039a29c-4058-ab6e-56ef-d1383deb7e38@suse.com> X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.4.3 (chassiron.antioche.eu.org [151.127.5.145]); Wed, 18 Nov 2020 10:28:25 +0100 (MET) On Wed, Nov 18, 2020 at 10:16:17AM +0100, Jan Beulich wrote: > On 17.11.2020 17:40, Manuel Bouyer wrote: > > On Tue, Nov 17, 2020 at 04:58:07PM +0100, Roger Pau Monné wrote: > >> [...] > >> > >> I have attached a patch below that will dump the vIO-APIC info as part > >> of the 'i' debug key output, can you paste the whole output of the 'i' > >> debug key when the system stalls? > > > > see attached file. Note that the kernel did unstall while 'i' output was > > being printed, so it is mixed with some NetBSD kernel output. > > Could you try to run Xen's serial port without use of any IRQ > (i.e. in "polling" mode), in an attempt to avoid this unstalling > (which is likely to render the resulting output at least in part > meaningless)? It there a boot line option for that ? -- Manuel Bouyer NetBSD: 26 ans d'experience feront toujours la difference --