From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@horizon.com Subject: arp-scan triggers via-velocity "eth0: excessive work at interrupt" Date: 12 Jun 2007 21:56:38 -0400 Message-ID: <20070613015638.31637.qmail@science.horizon.com> Cc: linux@horizon.com To: netdev@vger.kernel.org Return-path: Received: from science.horizon.com ([192.35.100.1]:16027 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751905AbXFMCDV (ORCPT ); Tue, 12 Jun 2007 22:03:21 -0400 Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org It kind of surprised me that sending 254 arp packets by using the arp-scan tool (http://www.nta-monitor.com/tools/arp-scan/) on a /24 consistently triggers a burst of "eth0: excessive work at interrupt." This is a 600 MHz PIII, 2.6.22-rc4, via-velocity driver. model name : Pentium III (Katmai) stepping : 3 cpu MHz : 601.406 cache size : 512 KB 00:09.0 Ethernet controller [0200]: VIA Technologies, Inc. VT6120/VT6121/VT6122 Gigabit Ethernet Adapter [1106:3119] (rev 11) Just double-checking... the program actually sent 463 packets (256 + a retry to all those that didn't respond to the first one), and triggers 11 copies of the kernel message. Command line: arp-scan -I eth0 -l [-v]