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 F01C6C56201 for ; Thu, 19 Nov 2020 16:58:14 +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 575B7221FB for ; Thu, 19 Nov 2020 16:58:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 575B7221FB 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.31201.61495 (Exim 4.92) (envelope-from ) id 1kfnFm-0006Rc-GR; Thu, 19 Nov 2020 16:57:50 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 31201.61495; Thu, 19 Nov 2020 16:57:50 +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 1kfnFm-0006RV-Cj; Thu, 19 Nov 2020 16:57:50 +0000 Received: by outflank-mailman (input) for mailman id 31201; Thu, 19 Nov 2020 16:57:49 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfnFl-0006RQ-5U for xen-devel@lists.xenproject.org; Thu, 19 Nov 2020 16:57:49 +0000 Received: from chassiron.antioche.eu.org (unknown [2001:41d0:fe9d:1101::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 77c26135-2719-43ff-8f84-d50e9cdcd87b; Thu, 19 Nov 2020 16:57:46 +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 0AJGvdDk003498 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Thu, 19 Nov 2020 17:57:40 +0100 (MET) Received: by sandettie.soc.lip6.fr (Postfix, from userid 373) id 437A42E9CA8; Thu, 19 Nov 2020 17:57:34 +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 1kfnFl-0006RQ-5U for xen-devel@lists.xenproject.org; Thu, 19 Nov 2020 16:57:49 +0000 X-Inumbo-ID: 77c26135-2719-43ff-8f84-d50e9cdcd87b Received: from chassiron.antioche.eu.org (unknown [2001:41d0:fe9d:1101::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 77c26135-2719-43ff-8f84-d50e9cdcd87b; Thu, 19 Nov 2020 16:57:46 +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 0AJGvdDk003498 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Thu, 19 Nov 2020 17:57:40 +0100 (MET) Received: by sandettie.soc.lip6.fr (Postfix, from userid 373) id 437A42E9CA8; Thu, 19 Nov 2020 17:57:34 +0100 (MET) Date: Thu, 19 Nov 2020 17:57:34 +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: <20201119165734.GA4903@antioche.eu.org> References: <20201117155807.a7jgmftnj6njg6oz@Air-de-Roger> <20201117164033.GB3093@antioche.eu.org> <20201118085738.wpnfmjagxjf6cofp@Air-de-Roger> <20201118092425.GC1085@antioche.eu.org> <20201118100025.ic7r3kfsbdnr6muz@Air-de-Roger> <20201118121403.GC3126@antioche.eu.org> <20201118143928.hvamuf7t7jycsrzb@Air-de-Roger> <20201119141915.igyb7djkw47rf2dt@Air-de-Roger> <20201119155718.GB4104@antioche.eu.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20201119155718.GB4104@antioche.eu.org> X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.4.3 (chassiron.antioche.eu.org [151.127.5.145]); Thu, 19 Nov 2020 17:57:40 +0100 (MET) On Thu, Nov 19, 2020 at 04:57:18PM +0100, Manuel Bouyer wrote: > On Thu, Nov 19, 2020 at 03:19:15PM +0100, Roger Pau Monné wrote: > > I've got two different debug patches for you to try. I'm attaching both > > to this email but I think we should start with Jan's suggestion > > (conditional_print.patch). That patch will only print extra messages > > between the ioregsel 3 ... ioregsel f existing debug messages, you > > will have to trigger this from NetBSD by using ioapic_dump_raw AFAICT. > > thanks. I didn't see any change in behavior or XEN output with this > patch (especially the vioapic_deliver string doesn't show up in the > logs). I tried forcing print to 1, and I still don't see "vioapic_deliver" on the console. I changed the patch to: #define vioapic_deliver(vioapic, irq) ({\ if ( /* print && irq == 34 */ 1 ) \ printk("%s:%d:%s: vioapic_deliver %d\n", __FILE__, __LINE__, __func__, i rq); \ _vioapic_deliver(vioapic, irq); }) and got: [ 13.8853432] ioapic2: pin2 0x0000a067 0x00000000^M [ 13.8853432] mfii0: cmd timeout ccb 0xffff9780023b7d60 status 0x40000008^M (XEN) *** Serial input to Xen (type 'CTRL-a' three times to switch input) (XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2 [ 17.0001093] mfii0: cmd aborted ccb 0xffff9780023b7d60^M (XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2 [ 17.0217772] config_pending_decr: scsibus0 0^M (XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2 [ 17.(XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2 0417095] config_finalize 2185^M So I guess that the interrupt delivery on XEN output is vioapic.c:511 -- Manuel Bouyer NetBSD: 26 ans d'experience feront toujours la difference --