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=-3.8 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 7932DC56201 for ; Tue, 24 Nov 2020 14:00:27 +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 E0AD220708 for ; Tue, 24 Nov 2020 14:00:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E0AD220708 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.36413.68307 (Exim 4.92) (envelope-from ) id 1khYrW-0001sw-Va; Tue, 24 Nov 2020 14:00:06 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 36413.68307; Tue, 24 Nov 2020 14:00:06 +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 1khYrW-0001sp-RM; Tue, 24 Nov 2020 14:00:06 +0000 Received: by outflank-mailman (input) for mailman id 36413; Tue, 24 Nov 2020 14:00:05 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khYrV-0001gK-G1 for xen-devel@lists.xenproject.org; Tue, 24 Nov 2020 14:00:05 +0000 Received: from chassiron.antioche.eu.org (unknown [2001:41d0:fe9d:1101::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 8f1753fc-10a9-4c03-87a4-f45e32227480; Tue, 24 Nov 2020 14:00:02 +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 0AODxroP023842 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Tue, 24 Nov 2020 14:59:54 +0100 (MET) Received: by sandettie.soc.lip6.fr (Postfix, from userid 373) id 760BA2E9CAC; Tue, 24 Nov 2020 14:59:48 +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 1khYrV-0001gK-G1 for xen-devel@lists.xenproject.org; Tue, 24 Nov 2020 14:00:05 +0000 X-Inumbo-ID: 8f1753fc-10a9-4c03-87a4-f45e32227480 Received: from chassiron.antioche.eu.org (unknown [2001:41d0:fe9d:1101::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 8f1753fc-10a9-4c03-87a4-f45e32227480; Tue, 24 Nov 2020 14:00:02 +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 0AODxroP023842 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Tue, 24 Nov 2020 14:59:54 +0100 (MET) Received: by sandettie.soc.lip6.fr (Postfix, from userid 373) id 760BA2E9CAC; Tue, 24 Nov 2020 14:59:48 +0100 (MET) Date: Tue, 24 Nov 2020 14:59:48 +0100 From: Manuel Bouyer To: Roger Pau =?iso-8859-1?Q?Monn=E9?= Cc: Jan Beulich , xen-devel@lists.xenproject.org Subject: Re: NetBSD dom0 PVH: hardware interrupts stalls Message-ID: <20201124135948.GL2020@antioche.eu.org> References: <20904a6a-ac64-755d-d228-4c49faf66fb5@suse.com> <20201120103824.GJ1508@antioche.eu.org> <20201123095713.orfpg72r73m7f46n@Air-de-Roger> <20201123113241.GE2520@antioche.eu.org> <20201123125112.q3zqb4e5nk6jg4hw@Air-de-Roger> <20201123143150.GG2520@antioche.eu.org> <20201123170610.kzfxvcgkdkvh3ex4@Air-de-Roger> <20201123173925.GG4662@antioche.eu.org> <20201124122102.3igsriesou3vl6mu@Air-de-Roger> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20201124122102.3igsriesou3vl6mu@Air-de-Roger> X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.4.3 (chassiron.antioche.eu.org [151.127.5.145]); Tue, 24 Nov 2020 14:59:55 +0100 (MET) On Tue, Nov 24, 2020 at 01:21:02PM +0100, Roger Pau Monné wrote: > [...] > > What we're missing is LAPIC information, since the masked status logged > > is unclear: (-MM) isn't fully matching up with "mask=0". But of course > > the former is just a software representation, while the latter is what > > the RTE holds. IOW for the interrupt to not get delivered, there needs > > to be this or a higher ISR bit set (considering we don't use the TPR), > > or (I think we can pretty much exclude this) we'd need to be running > > with IRQs off for extended periods of time. > > Let's dump the physical lapic(s) IRR and ISR together with the > IO-APIC state. Can you please apply the following patch and use the > 'i' key again? (please keep the previous patch applied) Done, you'll find the log at http://www-soc.lip6.fr/~bouyer/xen-log6.txt -- Manuel Bouyer NetBSD: 26 ans d'experience feront toujours la difference --