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=-12.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 6880FC64E8A for ; Mon, 30 Nov 2020 12:09:31 +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 D8B4E206D8 for ; Mon, 30 Nov 2020 12:09:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="O/MR1I7q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D8B4E206D8 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.41063.74162 (Exim 4.92) (envelope-from ) id 1kjhzW-0004u4-GG; Mon, 30 Nov 2020 12:09:14 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 41063.74162; Mon, 30 Nov 2020 12:09:14 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kjhzW-0004tx-D2; Mon, 30 Nov 2020 12:09:14 +0000 Received: by outflank-mailman (input) for mailman id 41063; Mon, 30 Nov 2020 12:09:13 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kjhzV-0004ts-4d for xen-devel@lists.xenproject.org; Mon, 30 Nov 2020 12:09:13 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 7bbcd17d-f33e-46e6-9fe3-fcc10a745539; Mon, 30 Nov 2020 12:09:12 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 7D366AC91; Mon, 30 Nov 2020 12:09:11 +0000 (UTC) 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" X-Inumbo-ID: 7bbcd17d-f33e-46e6-9fe3-fcc10a745539 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=1606738151; 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=H+Ui8SwHQZa3iP+Gts8zCQ4ObScAO+xHJ1EnaXEaAcg=; b=O/MR1I7qEg+DF+XDfCCqR64i0zYZIRXF8TuAMZ4vcgMN+AsYai3hSPy7qzH+xDgkT9q48h ZMN63bCJTVVH0WdmgBmeeYo6PdxE8l21goTXTSOxNqIefvrfyBsEtsxPGvnUQ9Go2IXAID tThQjnEU8MgzKZEUSVLcKr8k2mT90zQ= Subject: Re: NetBSD dom0 PVH: hardware interrupts stalls To: Manuel Bouyer Cc: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , xen-devel@lists.xenproject.org References: <20201127133121.GN1717@antioche.eu.org> <96aa5a9b-3f4a-ce9d-0f41-4a24d409ed55@suse.com> <20201127135929.GR1717@antioche.eu.org> <20201127202211.eqrxloii5x54zode@Air-de-Roger> <20201127214420.GA637@antioche.eu.org> <20201128145311.3gmzq5lnkz6ajdtr@Air-de-Roger> <20201128171430.GB631@antioche.eu.org> <819e859e-0fd2-cdbf-6126-46c924364d12@suse.com> <20201130113527.GE1084@antioche.eu.org> <7e284ec6-a3a3-6c04-ce48-10a8290304d5@suse.com> <20201130115013.GF1084@antioche.eu.org> From: Jan Beulich Message-ID: <9fc635f0-3a80-892f-cc7a-8c30e35a6f2d@suse.com> Date: Mon, 30 Nov 2020 13:09:10 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <20201130115013.GF1084@antioche.eu.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit On 30.11.2020 12:50, Manuel Bouyer wrote: > On Mon, Nov 30, 2020 at 12:44:23PM +0100, Jan Beulich wrote: >> On 30.11.2020 12:35, Manuel Bouyer wrote: >>> On Mon, Nov 30, 2020 at 11:00:23AM +0100, Jan Beulich wrote: >>>> On 28.11.2020 18:14, Manuel Bouyer wrote: >>>>> On Sat, Nov 28, 2020 at 03:53:11PM +0100, Roger Pau Monné wrote: >>>>>>> the trace is at >>>>>>> http://www-soc.lip6.fr/~bouyer/xen-log13.txt >>>>>> >>>>>> Thanks! I think I've found the issue and I'm attaching a possible fix >>>>>> (fix.patch) to this email. In any case I've also attached a further >>>>>> debug patch, in case the fix turns out to be wrong. Please test the >>>>>> fix first, as the debug patch will end up triggering a panic when the >>>>>> buffer is full. >>>>> >>>>> Yes, fix.patch does make the system boot as expected ! >>>> >>>> May I translate this to a Tested-by? >>>> >>>> Patch also >>>> Reviewed-by: Jan Beulich >>>> >>>> Thanks much to both of you for all the effort here! >>> >>> Also, please don't forget the attached patch ! >>> Without it, the hypervisor panics. >> >> Well - this one still needs a proper description and S-o-b. >> The other one came in immediately consumable shape right away. > > The patch was sent by Roger on 12 Nov 2020, in reply to my mail > about the panic. I'm aware, but that wasn't a patch I can take and commit. I'm not even entirely certain the code change is the final one, not the least because of not having seen a description of the change, yet. Jan