From owner-freebsd-xen@freebsd.org Tue May 29 08:18:17 2018 Return-Path: Delivered-To: freebsd-xen@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C0DC1EF9893 for ; Tue, 29 May 2018 08:18:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 5AD7A7CF9F for ; Tue, 29 May 2018 08:18:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 121AFEF9892; Tue, 29 May 2018 08:18:16 +0000 (UTC) Delivered-To: xen@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id F2289EF9891 for ; Tue, 29 May 2018 08:18:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8AE2A7CF9A for ; Tue, 29 May 2018 08:18:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id E20562711A for ; Tue, 29 May 2018 08:18:14 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w4T8IEEK088210 for ; Tue, 29 May 2018 08:18:14 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w4T8IEgQ088209 for xen@FreeBSD.org; Tue, 29 May 2018 08:18:14 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: xen@FreeBSD.org Subject: [Bug 188261] [xen] FreeBSD DomU PVHVM guests cannot 'route' traffic for other Xen PV guests on same Dom0 Host. Date: Tue, 29 May 2018 08:18:14 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 9.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: karl@pielorz.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: xen@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.26 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: Tue, 29 May 2018 08:18:17 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D188261 --- Comment #34 from karl@pielorz.com --- (In reply to Eitan Adler from comment #33) Hi - this issue still exists, I've just re-tested in 10.4 and 11.1. I'm not able to test 12.x at the moment, but I have no reason to believe it's been fixed in current or anything. It affects anything working with 'low level' packets - so NAT, OpenVPN, DHCP et'al. - e.g. with OpenVPN it seems packet coalescing 'behind the scenes' e= nds up presenting way over 1500 byte packets to OpenVPN - which it point blank refuses to handle. Workaround we're using here is to set 'hw.xen.disable_pv_nics=3D1' in /boot/loader.conf on FreeBSD with a small mod to 'qemu-dm-wrapper' on the X= en Server, and a custom field added to affected VM's in XenCenter that the wra= pper 'keys off' - this turns xn0 into vtnet0 for these hosts - these do work with the above applications, and are still live-migratable (and appear to be bet= ter performance than re0 NIC's). -Karl --=20 You are receiving this mail because: You are the assignee for the bug.=