From owner-freebsd-bugs@FreeBSD.ORG Tue Jun 2 14:50:02 2009 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E2ADA106564A for ; Tue, 2 Jun 2009 14:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id A45F88FC1E for ; Tue, 2 Jun 2009 14:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n52Eo24s039323 for ; Tue, 2 Jun 2009 14:50:02 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n52Eo208039322; Tue, 2 Jun 2009 14:50:02 GMT (envelope-from gnats) Resent-Date: Tue, 2 Jun 2009 14:50:02 GMT Resent-Message-Id: <200906021450.n52Eo208039322@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, "Mr. Olli" Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0DA4A106564A for ; Tue, 2 Jun 2009 14:46:51 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id F07FD8FC1B for ; Tue, 2 Jun 2009 14:46:50 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id n52Ekonc023310 for ; Tue, 2 Jun 2009 14:46:50 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id n52Eko4D023308; Tue, 2 Jun 2009 14:46:50 GMT (envelope-from nobody) Message-Id: <200906021446.n52Eko4D023308@www.freebsd.org> Date: Tue, 2 Jun 2009 14:46:50 GMT From: "Mr. Olli" To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: misc/135178: Xen domU outgoing data transfer stall when TSO is enabled X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jun 2009 14:50:03 -0000 >Number: 135178 >Category: misc >Synopsis: Xen domU outgoing data transfer stall when TSO is enabled >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jun 02 14:50:02 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Mr. Olli >Release: 8-CURRENT r193225 >Organization: >Environment: FreeBSD template-8_CURRENT.domain 8.0-CURRENT FreeBSD 8.0-CURRENT #1 r193225: Mon Jun 1 17:18:52 CEST 2009 root@template-8_CURRENT.domain:/usr/obj/usr/src/sys/XEN i386 >Description: Transfering files larger than some size (presumably 2MB) via SSH with FreeBSD XEN para-virt domU stall after transfering 2112kb of data, when domU is source of transfer. SSH transfers with the domU as target work properly. >How-To-Repeat: 1) Enable TSO for xn0 2) transfer data (e.g. kernel file) template-8_CURRENT# ifconfig xn0 tso template-8_CURRENT# scp /boot/kernel/kernel dante@10.30.1.15:/tmp Password: kernel 46% 2112KB 1.4MB/s - stalled -^CKilled by signal 2. template-8_CURRENT# >Fix: As reported by "Anne Marcel Roorda" on freebsd-xen disable TCP Segmentation offloading solves the problem. template-8_CURRENT# ifconfig xn0 -tso template-8_CURRENT# scp /boot/kernel/kernel dante@10.30.1.15:/tmp kernel 100% 4510KB 4.4MB/s 00:00 template-8_CURRENT# >Release-Note: >Audit-Trail: >Unformatted: