From mboxrd@z Thu Jan 1 00:00:00 1970 From: Farkas Levente Subject: network problem with kvm-40 Date: Wed, 19 Sep 2007 11:20:18 +0200 Message-ID: <46F0E9D2.4080904@bppiac.hu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-devel Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org hi, with kvm-40 in a x86_64 host bridged mode: --------------------------- e1000: peth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex e1000: peth0: e1000_watchdog_task: 10/100 speed: disabling TSO --------------------------- while on the guests (both x86_64 and i386) are full with such lines: --------------------------- Sep 19 09:23:40 devel-i386 kernel: eth0: link up, 100Mbps, full-duplex, lpa 0x05E1 Sep 19 09:24:47 devel-i386 kernel: NETDEV WATCHDOG: eth0: transmit timed out Sep 19 09:24:50 devel-i386 kernel: eth0: link up, 100Mbps, full-duplex, lpa 0x05E1 Sep 19 09:25:08 devel-i386 kernel: NETDEV WATCHDOG: eth0: transmit timed out --------------------------- with the rtl8139 guest driver: --------------------------- Sep 18 09:16:48 devel-i386 kernel: 8139too Fast Ethernet driver 0.9.27 Sep 18 09:16:48 devel-i386 kernel: 8139too 0000:00:03.0: This (id 10ec:8139 rev 20) is an enhanced 8139C+ chip Sep 18 09:16:48 devel-i386 kernel: 8139too 0000:00:03.0: Use the "8139cp" driver for improved performance and stability. Sep 18 09:16:48 devel-i386 kernel: ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10 Sep 18 09:16:48 devel-i386 kernel: ACPI: PCI Interrupt 0000:00:03.0[A] -> Link [LNKC] -> GSI 10 (level, low) -> IRQ 10 Sep 18 09:16:48 devel-i386 kernel: eth0: RealTek RTL8139 at 0xf8812000, 00:16:3e:58:66:7b, IRQ 10 Sep 18 09:16:48 devel-i386 kernel: 8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004) --------------------------- while the biggest problem is that the net access the guest are become very slow (probably because of this error). -- Levente "Si vis pacem para bellum!" ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/