From owner-freebsd-xen@freebsd.org Wed May 5 02:27:08 2021 Return-Path: Delivered-To: freebsd-xen@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 13A6162BF66 for ; Wed, 5 May 2021 02:27:08 +0000 (UTC) (envelope-from bounces+17430347-7da8-freebsd-xen=freebsd.org@em4937.fdc-k.co.ke) Received: from wrqvqdbx.outbound-mail.sendgrid.net (wrqvqdbx.outbound-mail.sendgrid.net [149.72.77.186]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4FZgZz4qjrz4lrb for ; Wed, 5 May 2021 02:27:07 +0000 (UTC) (envelope-from bounces+17430347-7da8-freebsd-xen=freebsd.org@em4937.fdc-k.co.ke) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fdc-k.co.ke; h=content-transfer-encoding:content-type:from:mime-version:subject:to: list-unsubscribe; 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dkim=pass header.d=fdc-k.co.ke header.s=s1 header.b=tYAGtnhI; dmarc=pass (policy=none) header.from=fdc-k.co.ke; spf=pass (mx1.freebsd.org: domain of bounces@em4937.fdc-k.co.ke designates 149.72.77.186 as permitted sender) smtp.mailfrom=bounces@em4937.fdc-k.co.ke X-Spamd-Result: default: False [-2.41 / 15.00]; R_SPF_ALLOW(-0.20)[+ip4:149.72.0.0/16:c]; MV_CASE(0.50)[]; TO_DN_NONE(0.00)[]; DKIM_TRACE(0.00)[fdc-k.co.ke:+]; DMARC_POLICY_ALLOW(-0.50)[fdc-k.co.ke,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FORGED_SENDER(0.30)[Jackson@fdc-k.co.ke,bounces@em4937.fdc-k.co.ke]; RCVD_TLS_LAST(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[149.72.77.186:from]; ASN(0.00)[asn:11377, ipnet:149.72.64.0/19, country:US]; MIME_TRACE(0.00)[0:~]; TAGGED_FROM(0.00)[17430347-7da8-freebsd-xen=freebsd.org]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[fdc-k.co.ke:s=s1]; FROM_NEQ_ENVFROM(0.00)[Jackson@fdc-k.co.ke,bounces@em4937.fdc-k.co.ke]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; HAS_LIST_UNSUB(-0.01)[]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[149.72.77.186:from:127.0.2.255]; MIME_HTML_ONLY(0.20)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[149.72.77.186:from]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-xen] MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.34 X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 May 2021 02:27:08 -0000 From owner-freebsd-xen@freebsd.org Fri May 7 05:12:29 2021 Return-Path: Delivered-To: freebsd-xen@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A4FED5F80BE for ; Fri, 7 May 2021 05:12:29 +0000 (UTC) (envelope-from saper@saper.info) Received: from q.saper.info (q.saper.info [IPv6:2605:2700:0:2:a800:ff:fec7:5c61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "q.saper.info", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Fbz8r2GGxz3hlQ for ; Fri, 7 May 2021 05:12:27 +0000 (UTC) (envelope-from saper@saper.info) Received: from q.saper.info (localhost [127.0.0.1]) by q.saper.info (8.16.1/8.16.1) with ESMTPS id 1475CGmU038389 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Fri, 7 May 2021 05:12:16 GMT (envelope-from saper@saper.info) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=saper.info; s=Sep2014; t=1620364336; bh=eIBhwaXnI3NumEQDi0bEUGyNzFAL5uIThsk4Pzn2HVw=; h=Date:From:To:Subject; b=qkXfnjVXE/MiBR48rphVUNA5LD+DctqKtUuBJxHDe2V8Iz32MRF9XVS+XZYIEBlS8 fhFCsk2eqWNK3VDvUy1gjbNjTW8sJc4kwRMcstgD/QVOM9sVnoSqvSWu8cwEbvdrpi LlRVqKzKyy5kVXtBBvuc2hRCVBisYlxwjFzgcADo= Received: from localhost (saper@localhost) by q.saper.info (8.16.1/8.16.1/Submit) with ESMTP id 1475CGEY038386 for ; Fri, 7 May 2021 05:12:16 GMT (envelope-from saper@saper.info) X-Authentication-Warning: q.saper.info: saper owned process doing -bs Date: Fri, 7 May 2021 05:12:16 +0000 From: Marcin Cieslak To: freebsd-xen@freebsd.org Subject: FreeBSD 14-CURRENT as a guest working? Message-ID: <0s12o73-281-4759-osnq-879n25o431p9@fncre.vasb> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="2201072851-488842597-1620364336=:3562" X-Rspamd-Queue-Id: 4Fbz8r2GGxz3hlQ X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=saper.info header.s=Sep2014 header.b=qkXfnjVX; dmarc=none; spf=none (mx1.freebsd.org: domain of saper@saper.info has no SPF policy when checking 2605:2700:0:2:a800:ff:fec7:5c61) smtp.mailfrom=saper@saper.info X-Spamd-Result: default: False [-4.40 / 15.00]; HAS_ATTACHMENT(0.00)[]; HAS_XAW(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[saper.info:+]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2605:2700:0:2:a800:ff:fec7:5c61:from]; ASN(0.00)[asn:47066, ipnet:2605:2700::/32, country:US]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[saper.info:s=Sep2014]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; SIGNED_SMIME(-2.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-xen@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[2605:2700:0:2:a800:ff:fec7:5c61:from:127.0.2.255]; DMARC_NA(0.00)[saper.info]; R_SPF_NA(0.00)[no SPF record]; MAILMAN_DEST(0.00)[freebsd-xen] X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 May 2021 05:12:29 -0000 --2201072851-488842597-1620364336=:3562 Content-Type: text/plain; format=flowed; charset=US-ASCII I have put FreeBSD-14.0-CURRENT-amd64-20210422-df456a1fcf7-246266.raw.xz on an zvol and tried booting it like this: builder = "hvm" name = "current0" disk = [ '/dev/zvol/zroot/current0,raw,xvda,w' ] boot = "c" bios = "ovmf" usbdevice = 'tablet' #nographics = 1 serial = [ "/dev/nmdm0A" ] vnc = 1 #vnclisten = '0.0.0.0' vif = ['bridge=bridge0,mac=00:02:04:15:fd:e1','bridge=bridge1,mac=00:02:04:15:fd:e2'] memory=8192 vcpus=6 vga = "stdvga" videoram = 16 ;xen_platform_pci=1 it starts to boot but subsequently crashes with various messages related to network front drivers. I tried to collect some info but now an attempt to start it seems to bog down my Xen host :( (it responds to TCP connections but SSH connections are frozen and I can't open new ones) Host is FreeBSD 12.2-STABLE r369477 GENERIC (XEN) Xen version 4.14.1 (root@) (FreeBSD clang version 10.0.1 (git@github.com:llvm/llvm-project.git llvmorg-10.0.1-0-gef32c611aa2)) debug=n Thu Mar 18 13:45:35 UTC 2021 Marcin --2201072851-488842597-1620364336=:3562 Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: BASE64 Content-Description: S/MIME Cryptographic Signature Content-Disposition: attachment; filename=smime.p7s MIIOdgYJKoZIhvcNAQcCoIIOZzCCDmMCAQExDzANBglghkgBZQMEAgEFADAL BgkqhkiG9w0BBwGgggq9MIIEvDCCA6SgAwIBAgIQeEqpEhjRpCYIUTzTZlVD ozANBgkqhkiG9w0BAQsFADBMMSAwHgYDVQQLExdHbG9iYWxTaWduIFJvb3Qg Q0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMKR2xvYmFs U2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yOTAzMTgwMDAwMDBaMFsxCzAJBgNV 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smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none Date: Fri, 7 May 2021 11:42:41 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Marcin Cieslak CC: Subject: Re: [PROMOTIONAL]FreeBSD 14-CURRENT as a guest working? 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The following commit solves the issue in the domU: https://cgit.freebsd.org/src/commit/?id=5d8fd932e418f03e98b3469c4088a36f0ef34ffe I don't think there's any snapshot image with this yet. > I tried to collect some info but now an attempt to start it seems to bog down my Xen host :( > (it responds to TCP connections but SSH connections are frozen and I can't open new ones) Hm, that's weird. Do you have a serial attached to the box to know what's going on? Thanks, Roger. From owner-freebsd-xen@freebsd.org Fri May 7 09:45:32 2021 Return-Path: Delivered-To: freebsd-xen@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id DB4245FD2E4 for ; Fri, 7 May 2021 09:45:32 +0000 (UTC) (envelope-from roger.pau@citrix.com) Received: from esa1.hc3370-68.iphmx.com (esa1.hc3370-68.iphmx.com [216.71.145.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx1.hc3370-68.iphmx.com", Issuer "HydrantID SSL CA G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Fc5Cw1YyFz3tJY for ; Fri, 7 May 2021 09:45:32 +0000 (UTC) (envelope-from roger.pau@citrix.com) IronPort-SDR: oFxgFG88ocudcAjmmGNMHI+n6nNQtn8AJxwJwf/mqJc4uLmed28lJaWtVkoV9Wsd73UBMPbFh+ EGFvpMz69XR+geCq2AWEFZf9Ft3NtYqXmF7/67YJLsLycHL0C6tK5SyEfrT0unwk3TBcirvqXj a4/0E/q15suFH4fnho7+65LyLWgQmL9ctuO5wVLdSkmANsnLbN3drLG37/8MjFC/mAzzx5Zdul hc9fTXh+bbNE6U/xBe09dzmi8Vzeaf8MxkGzcxYguW3xGQtJjiL1XoRzaZdlBkug41+Eg6Cqn1 TsU= X-SBRS: 5.1 X-MesageID: 43673551 X-Ironport-Server: esa1.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED IronPort-HdrOrdr: A9a23:JbC/f6ohz4DBfm0hqQhMBRsaV5sgL9V00zEX/kB9WHVpm5Oj+f xGzc516farslossREb+expOMG7MBXhHLpOkPQs1NaZLXPbUQ6TTb2KgrGSpgEIdxeOktK1kJ 0QD5SWa+eAfWSS7/yKmDVQeuxIqLLsndHK9IWuvUuFDzsaEJ2Ihz0JezpzeXcGPTWua6BJc6 Z1saF81kSdkDksH4mG7hZvZZmOm/T70LbdJTIWDR8u7weDyRmy7qThLhSe1hACFxtS3LYL6w H+4k3Ez5Tml8v+5g7X1mfV4ZgTssDm0MF/CMuFjdVQAinwizyveJ9qV9S5zX4ISdmUmRUXee T30lUd15wZ0QKVQoj1m2qj5+DY6kdv15e4omXoxUcKyKfCNUEH48kov/MQTvKW0TtmgDhG6t M+44uujesfMfrxplWJ2zH2bWAcqqOVmwtorQdBtQ0UbWMhAIUh27D3q3klb6voWhiKrrwaLA == X-IronPort-AV: E=Sophos;i="5.82,280,1613451600"; d="scan'208";a="43673551" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HA2YGOFpD2guENupdVmeTymH12DTprPtb4emxv4jzTLsXd3ZM37SSfG0lRg1Y+2QRgVDShvCEmk/cjdk0BZ8W8ZitQyA3RCOfNBvIv3fVTq5odlwKmM5+gtzor79x54+t3QPzRI3lADCfy+0EYwWRGlshHnsMdAcO1zfXMMNPkB9nQEHHvw03/NovYQt2RW5O1X1GbZeqyG3DPKWGw1Ulv59hm85v7pR6oQDR1Ko6kbdY7stlp+iRdBXGfVdt/QmQ5BivW9VyVDQ0P0XwVNx/qshZkg1IFZf3F9cXEJdwtj9hujZuaAprGZ2docxa7i9ueEwOkaKw/DnoN+mjNIsjw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=sYJcVp5C4SNZV8kE28ljJ8QAEc1lJgqeVuA+yweuCuk=; b=dOOv4wooYKKJKVwMV9hDIBiU/aszIg+Y5B+iViJ2yYLHUCqx64jMRP8IsidP6jvjnBtWqxOptGTgtg9WO8CsHtLKqMzF5r06o37+TDIZdsKA8zwOUaXr7A7OXLIMVxouhtz4n/yCddE5Y7Q2J8OhLL6DYS8lbkHHuouIholF/jUsjbFXoC4/lrP1iAKQ5AG/3spfOrfEujO2FthM+UzYoQmtc02+XZMAsJ8MZ3rv6jZsDeAWxDOQYOLLd6HmoQlm/dij3PyQKxqub4BmBxqyLL7PDRL2EfSUzmZ0tM8dnMVCKJYzDI4bXK8/Yc/gDlWd3ZdXQvLiPcy85iORLQno8g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none Date: Fri, 7 May 2021 11:45:21 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Brian Buhrow CC: Subject: Re: Strange error messages from xnb on dom0. What do they mean? 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NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[citrix.com:s=securemail,citrix.onmicrosoft.com:s=selector2-citrix-onmicrosoft-com]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; DWL_DNSWL_LOW(-1.00)[citrix.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[citrix.com:+,citrix.onmicrosoft.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[citrix.com,reject]; RCVD_IN_DNSWL_MED(-0.20)[216.71.145.142:from]; R_SPF_NA(0.00)[no SPF record]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:16417, ipnet:216.71.145.0/24, country:US]; MID_RHS_NOT_FQDN(0.50)[]; MAILMAN_DEST(0.00)[freebsd-xen]; ARC_ALLOW(-1.00)[microsoft.com:s=arcselector9901:i=1] X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 May 2021 09:45:32 -0000 On Mon, Apr 26, 2021 at 11:41:13AM -0700, Brian Buhrow wrote: > hello. Occasionally I see messages like the following from my FreeBSD-12.2/dom0 machine. > Is this related to the issue of the NetBSD domu's seeing bursts of oversized packets, which I assume > is caused by packets getting sent from the dom0 to the domu in batches rather than one at a > time, each with an interrupt signal, or, the xen equivalent? > > On the domu's I see: > xennet0: discarding oversize frame (len=1518) > > I see the following messages on the dom0, but not necessarily at the same time as the above > messages appear in the domu's. > > Any ideas? > -thanks > -Brian > > > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_ring2pkt:1532): Unknown extra info type 255. Discarding packet > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:302): netif_tx_request index =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:303): netif_tx_request.gref =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:304): netif_tx_request.offset=0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:305): netif_tx_request.flags =8 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:306): netif_tx_request.id =69 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:307): netif_tx_request.size =1000 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:302): netif_tx_request index =1 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:303): netif_tx_request.gref =255 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:304): netif_tx_request.offset=0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:305): netif_tx_request.flags =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:306): netif_tx_request.id =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:307): netif_tx_request.size =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_rxpkt2rsp:2066): Got error -1 for hypervisor gnttab_copy status Those are from netback failing to recognize or process a packet. Likely netback is being too verbose here, as those should only appear on debug builds or with boot_verbose. It might help identify what's going wrong between NetBSD netfront and FreeBSD netback. Roger. 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NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[citrix.com:s=securemail,citrix.onmicrosoft.com:s=selector2-citrix-onmicrosoft-com]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; DWL_DNSWL_LOW(-1.00)[citrix.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[citrix.com:+,citrix.onmicrosoft.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[citrix.com,reject]; RCVD_IN_DNSWL_MED(-0.20)[216.71.155.175:from]; R_SPF_NA(0.00)[no SPF record]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_NOT_FQDN(0.50)[]; ASN(0.00)[asn:16417, ipnet:216.71.154.0/23, country:US]; ARC_ALLOW(-1.00)[microsoft.com:s=arcselector9901:i=1]; MAILMAN_DEST(0.00)[freebsd-xen] X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 May 2021 09:56:13 -0000 On Wed, Mar 17, 2021 at 01:23:46AM -0700, Brian Buhrow wrote: > hello. I've noticed that on my Xen server, running FreeBSD-12.2/Xen-4.14.0, I see a lot > of messages like the following from my NetBSD-5 and NetBSD-current domu's: > xennet0: discarding oversize frame (len=1518) > > They happen when network traffic is heavy and when traffic is coming from a physical switch in > the same vlan as the domu's. Since I don't think packets are actually oversized on the wire, > the Cisco switch managing this network does not report any giant packets, I think this is a > software problem either on the NetBSD domu's, or the FreeBSD dom0. Since I've been running > these same NetBSD domu setups on a machine where NetBSD is the dom0, I think this is an issue > with the xnb(4) or netback.c driver. Specifically, it looks like it concatinates multiple > packets together before notifying the domu that there is traffic available. Perhaps that is by > design, since I cannot reproduce the issue on a FreeBSD-domu running on the same FreeBSD-dom0 > machine. In either case, while things are usable, it creates a very noisy log on the > NetBSD-domu machines. Does the xnb(4) driver forward multiple packets to the domu front ends > and set the length of the message to the sum of the lengths of all the packets it's forwarding, > leaving it to the domu front end driver to separate the packets on reception? Is there a > parameter that can be set on a per-domu basis to say whether you want > multiple-packets-per-transfer or not from the dom0? I think this is an issue with FreeBSD netback as it doesn't properly handle frontends that don't understand some of the features implemented in the FreeBSD backend and are enabled unconditionally. Could you paste the output of `xenstore-ls -fp` from dom0 when one of those NetBSD domUs is running? Thanks, Roger. From owner-freebsd-xen@freebsd.org Fri May 7 11:25:47 2021 Return-Path: Delivered-To: freebsd-xen@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4765E6298AB for ; Fri, 7 May 2021 11:25:47 +0000 (UTC) (envelope-from saper@saper.info) Received: from q.saper.info (q.saper.info [IPv6:2605:2700:0:2:a800:ff:fec7:5c61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "q.saper.info", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Fc7RY4WB0z4V78 for ; Fri, 7 May 2021 11:25:43 +0000 (UTC) (envelope-from saper@saper.info) Received: from q.saper.info (localhost [127.0.0.1]) by q.saper.info (8.16.1/8.16.1) with ESMTPS id 147BPfWO041509 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Fri, 7 May 2021 11:25:41 GMT (envelope-from saper@saper.info) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=saper.info; s=Sep2014; t=1620386741; bh=RLhwhjjlKHyoHoDCytn2Hip2ACMBMxPOSx+if9wc9Pc=; h=Date:From:To:Subject; b=TgTdo2xlMPZT3blsVlj8N8qLLy808xv05U/mMamzQ2YS+bwKR0gdHiP5nWqwif4in oP1dSBzguwoM0yiRf0J/sWFqQZzkr6hw5Si5IpqUAiBBm1+C/mymGG2p+jipDDJK2u px1eTR5SnIvfF9s0tPFA8W5v9DTEY2sGq5j88mZ4= Received: from localhost (saper@localhost) by q.saper.info (8.16.1/8.16.1/Submit) with ESMTP id 147BPf27041506 for ; Fri, 7 May 2021 11:25:41 GMT (envelope-from saper@saper.info) X-Authentication-Warning: q.saper.info: saper owned process doing -bs Date: Fri, 7 May 2021 11:25:41 +0000 From: Marcin Cieslak To: freebsd-xen@freebsd.org Subject: Name resolution from host to domUs? Message-ID: <52snn8q4-os80-srs-n6s9-5sop1s22so47@fncre.vasb> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="2201072851-391282866-1620386741=:3562" X-Rspamd-Queue-Id: 4Fc7RY4WB0z4V78 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=saper.info header.s=Sep2014 header.b=TgTdo2xl; dmarc=none; spf=none (mx1.freebsd.org: domain of saper@saper.info has no SPF policy when checking 2605:2700:0:2:a800:ff:fec7:5c61) smtp.mailfrom=saper@saper.info X-Spamd-Result: default: False [-4.40 / 15.00]; HAS_ATTACHMENT(0.00)[]; HAS_XAW(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[saper.info:+]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2605:2700:0:2:a800:ff:fec7:5c61:from]; ASN(0.00)[asn:47066, ipnet:2605:2700::/32, country:US]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[saper.info:s=Sep2014]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; SIGNED_SMIME(-2.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-xen@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[2605:2700:0:2:a800:ff:fec7:5c61:from:127.0.2.255]; DMARC_NA(0.00)[saper.info]; R_SPF_NA(0.00)[no SPF record]; MAILMAN_DEST(0.00)[freebsd-xen] X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 May 2021 11:25:47 -0000 --2201072851-391282866-1620386741=:3562 Content-Type: text/plain; format=flowed; charset=US-ASCII This is more a question about best practice people are using... I run Xen mainly to start a myriad of various operating systems in my lab (Linux variants, Solaris, BSDs, Windows...). domUs have usually zvol's allocated to them. I assign the IPv4 addresses via a local DHCP server, all domUs have access to two bridge interfaces (one for IPv4 with NAT, one for IPv6). Currently I add all domU IPv4 addresses to /etc/hosts file, being too lazy to maintain a DNS zone. Is there any way to nicely have name-to-IP name resolution working without doing things like DHCP+dynamic DNS on every machine? How to find out easily the IPv4 addresses assigned to the domUs? I understand that Xen only bridges Ethernet frames and has no clue really what happens above that? 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(envelope-from saper@saper.info) X-Authentication-Warning: q.saper.info: saper owned process doing -bs Date: Fri, 7 May 2021 11:27:50 +0000 From: Marcin Cieslak To: =?ISO-8859-15?Q?Roger_Pau_Monn=E9?= cc: freebsd-xen@freebsd.org Subject: Re: [PROMOTIONAL]FreeBSD 14-CURRENT as a guest working? In-Reply-To: Message-ID: <66qr370-40po-p33n-7397-s9s49589n8r@fncre.vasb> References: <0s12o73-281-4759-osnq-879n25o431p9@fncre.vasb> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="2201072851-479881609-1620386870=:3562" X-Rspamd-Queue-Id: 4Fc7V53Tw4z4VFr X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=saper.info header.s=Sep2014 header.b=Bo7lRJLE; dmarc=none; spf=none (mx1.freebsd.org: domain of saper@saper.info has no SPF policy when checking 2605:2700:0:2:a800:ff:fec7:5c61) smtp.mailfrom=saper@saper.info X-Spamd-Result: default: False [-4.40 / 15.00]; ARC_NA(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2605:2700:0:2:a800:ff:fec7:5c61:from]; R_DKIM_ALLOW(-0.20)[saper.info:s=Sep2014]; NEURAL_HAM_LONG(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; SIGNED_SMIME(-2.00)[]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; HAS_ATTACHMENT(0.00)[]; HAS_XAW(0.00)[]; DMARC_NA(0.00)[saper.info]; SPAMHAUS_ZRD(0.00)[2605:2700:0:2:a800:ff:fec7:5c61:from:127.0.2.255]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[saper.info:+]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_HAM_SHORT(-1.00)[-0.999]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:47066, ipnet:2605:2700::/32, country:US]; RCVD_TLS_LAST(0.00)[]; MAILMAN_DEST(0.00)[freebsd-xen] X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 May 2021 11:27:58 -0000 --2201072851-479881609-1620386870=:3562 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8BIT On Fri, 7 May 2021, Roger Pau Monné wrote: > On Fri, May 07, 2021 at 05:12:16AM +0000, Marcin Cieslak wrote: >> I have put FreeBSD-14.0-CURRENT-amd64-20210422-df456a1fcf7-246266.raw.xz >> on an zvol and tried booting it like this: >> (..) >> >> it starts to boot but subsequently crashes with various messages related to network front drivers. > > The following commit solves the issue in the domU: > > https://cgit.freebsd.org/src/commit/?id=5d8fd932e418f03e98b3469c4088a36f0ef34ffe > > I don't think there's any snapshot image with this yet. Thank you. I plan to start building -current there so I can try to build from source. >> I tried to collect some info but now an attempt to start it seems to bog down my Xen host :( >> (it responds to TCP connections but SSH connections are frozen and I can't open new ones) > > Hm, that's weird. Do you have a serial attached to the box to know > what's going on? Unfortunately, no. I could only hit big red button via my hosting provide "Hardware reset" console :( They only offer KVM when I ask for it and there is no serial console option :( Marcin --2201072851-479881609-1620386870=:3562 Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: BASE64 Content-Description: S/MIME Cryptographic Signature Content-Disposition: attachment; filename=smime.p7s MIIOdgYJKoZIhvcNAQcCoIIOZzCCDmMCAQExDzANBglghkgBZQMEAgEFADAL BgkqhkiG9w0BBwGgggq9MIIEvDCCA6SgAwIBAgIQeEqpEhjRpCYIUTzTZlVD ozANBgkqhkiG9w0BAQsFADBMMSAwHgYDVQQLExdHbG9iYWxTaWduIFJvb3Qg Q0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMKR2xvYmFs U2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yOTAzMTgwMDAwMDBaMFsxCzAJBgNV BAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhH bG9iYWxTaWduIEdDQyBSMyBQZXJzb25hbFNpZ24gMSBDQSAyMDIwMIIBIjAN BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvxvJBqEapaux2/z3J7fFslRO WjKVJ5rCMfWGsg17dmD7NSnG7Spoa8d3htXsls1IMxoO8PyouQajNQqYmlYo 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