From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pascal Terjan Subject: SiS 191 failure with MTU > 1496 Date: Fri, 29 May 2009 18:44:46 +0200 Message-ID: <1243615486.12871.44.camel@plop> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Francois Romieu Return-path: Received: from ryu.zarb.org ([212.85.158.22]:36641 "EHLO ryu.zarb.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753853AbZE2Qyt (ORCPT ); Fri, 29 May 2009 12:54:49 -0400 Sender: netdev-owner@vger.kernel.org List-ID: On a laptop with such hardware, with default 1500 MTU I can't connect to local machines, error bit LIMIT is set when receiving packets. By decreasing the MTU to 1496 everything works fine. Jun 28 20:03:13 localhost kernel: sis190 Gigabit Ethernet driver 1.2 loaded. Jun 28 20:03:13 localhost kernel: sis190 0000:00:04.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19 Jun 28 20:03:13 localhost kernel: 0000:00:04.0: Read MAC address from EEPROM Jun 28 20:03:13 localhost kernel: 0000:00:04.0: Error EEPROM read 0. Jun 28 20:03:13 localhost kernel: 0000:00:04.0: Read MAC address from APC. Jun 28 20:03:13 localhost kernel: 0000:00:04.0: Realtek PHY RTL8201 transceiver at address 1. Jun 28 20:03:13 localhost kernel: 0000:00:04.0: Using transceiver at address 1 as default. Jun 28 20:03:13 localhost kernel: 0000:00:04.0: SiS 191 PCI Gigabit Ethernet adapter at f08c0c00 (IRQ: 19), 00:21:85:da:e1:51 Jun 28 20:03:13 localhost kernel: eth0: GMII mode. Jun 28 20:03:13 localhost kernel: eth0: Enabling Auto-negotiation. 00:04.0 0200: 1039:0191 (rev 02) Subsystem: 1462:63f8 Flags: bus master, medium devsel, latency 0, IRQ 19 Memory at fddfcc00 (32-bit, non-prefetchable) [size=128] I/O ports at cc00 [size=128] Capabilities: [40] Power Management version 2 Kernel driver in use: sis190 Kernel modules: sis190