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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 D3544C5519F for ; Wed, 18 Nov 2020 09:16:38 +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 4F3D62071E for ; Wed, 18 Nov 2020 09:16:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="V60byJxc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4F3D62071E Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com 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.29625.59183 (Exim 4.92) (envelope-from ) id 1kfJZd-0004mU-Rq; Wed, 18 Nov 2020 09:16:21 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 29625.59183; Wed, 18 Nov 2020 09:16:21 +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 1kfJZd-0004mN-Ol; Wed, 18 Nov 2020 09:16:21 +0000 Received: by outflank-mailman (input) for mailman id 29625; Wed, 18 Nov 2020 09:16:20 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfJZc-0004mI-GV for xen-devel@lists.xenproject.org; Wed, 18 Nov 2020 09:16:20 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 463154f0-1008-43ff-ba91-ff879c0ba7ec; Wed, 18 Nov 2020 09:16:18 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 8D45FABDE; Wed, 18 Nov 2020 09:16:17 +0000 (UTC) Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfJZc-0004mI-GV for xen-devel@lists.xenproject.org; Wed, 18 Nov 2020 09:16:20 +0000 X-Inumbo-ID: 463154f0-1008-43ff-ba91-ff879c0ba7ec Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 463154f0-1008-43ff-ba91-ff879c0ba7ec; Wed, 18 Nov 2020 09:16:18 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1605690977; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lG//nGhZJIqPebNGS4ELK9sxFv2Pa11V9G3faF2QRSY=; b=V60byJxcSYWvObFMqaSjb2N1HM1GuAwvPzlRDBPJ7T+ww+nkXuyF2kTvpAZpj8ATpAb12+ 44iZgB4tkz5XFrdj5NV8Wq7BJj35PD4eub7V7THP0RFQB3cgY9+OjDZAo9xglEQrQvDSIv nCQ4pFovYEzkVzAmXR3d07z/IQW3lMw= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 8D45FABDE; Wed, 18 Nov 2020 09:16:17 +0000 (UTC) Subject: Re: NetBSD dom0 PVH: hardware interrupts stalls To: Manuel Bouyer Cc: xen-devel@lists.xenproject.org, =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <20201117150949.GA3791@antioche.eu.org> <20201117155807.a7jgmftnj6njg6oz@Air-de-Roger> <20201117164033.GB3093@antioche.eu.org> From: Jan Beulich Message-ID: <8039a29c-4058-ab6e-56ef-d1383deb7e38@suse.com> Date: Wed, 18 Nov 2020 10:16:17 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.3 MIME-Version: 1.0 In-Reply-To: <20201117164033.GB3093@antioche.eu.org> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 8bit 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)? Jan