From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 8 Oct 2001 19:32:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 8 Oct 2001 19:32:03 -0400 Received: from spog.gaertner.de ([194.45.135.2]:40976 "EHLO spog.gaertner.de") by vger.kernel.org with ESMTP id ; Mon, 8 Oct 2001 19:31:47 -0400 From: Joerg Schumacher Message-Id: <200110082332.BAA16370@aunt.gaertner.de> Subject: PF_PACKET: packets out of order To: linux-kernel@vger.kernel.org Date: Tue, 9 Oct 2001 01:32:16 +0200 (MET DST) X-NCC-RegID: de.gaertner X-Mailer: ELM [version 2.4ME+ PL66 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! NeTraMet v44b10 uses pcap(3) and complains about timestamps jumping backwards. Looks like a PF_PACKET socket doesn't receive the packets in the correct order. Some timestamps from a "tcpdump -tt": RX: 1001465480.175100 [...] TX: 1001465480.179111 [...] RX: 1001465480.177315 [...] ^^^^^^ TX: 1001465480.180514 [...] RX: 1001465480.179706 [...] Some more figures (obtained with a quick hack using libpcap-2001.09.25 on two different machines): 2.2.19: stats: 100000 packets received 0 packets dropped good: 90222 packets bad: 9778 packets max delta: 15850 usec 2.4.1: stats: 100000 packets received 0 packets dropped good: 99538 packets bad: 462 packets max delta: 471 usec Any plans to fix this in the kernel? Regards, Joerg -- Gaertner Datensysteme 38114 Braunschweig Joerg Schumacher Hamburger Str. 273a Tel: 0531-2335555 Fax: 0531-2335556