From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Fw: [Bug 65261] New: Packet loss or excessive packet delay repeatedly for some seconds Date: Wed, 20 Nov 2013 12:23:16 -0800 Message-ID: <20131120122316.77ce76c5@nehalam.linuxnetplumber.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from mail-pa0-f44.google.com ([209.85.220.44]:57775 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755172Ab3KTUXU (ORCPT ); Wed, 20 Nov 2013 15:23:20 -0500 Received: by mail-pa0-f44.google.com with SMTP id fa1so1587167pad.17 for ; Wed, 20 Nov 2013 12:23:19 -0800 (PST) Received: from nehalam.linuxnetplumber.net (static-50-53-83-51.bvtn.or.frontiernet.net. [50.53.83.51]) by mx.google.com with ESMTPSA id qv8sm40007593pbc.31.2013.11.20.12.23.18 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 20 Nov 2013 12:23:19 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: Begin forwarded message: Date: Wed, 20 Nov 2013 05:57:59 -0800 From: "bugzilla-daemon@bugzilla.kernel.org" To: "stephen@networkplumber.org" Subject: [Bug 65261] New: Packet loss or excessive packet delay repeatedly for some seconds https://bugzilla.kernel.org/show_bug.cgi?id=65261 Bug ID: 65261 Summary: Packet loss or excessive packet delay repeatedly for some seconds Product: Networking Version: 2.5 Kernel Version: 3.10.19 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: IPV4 Assignee: shemminger@linux-foundation.org Reporter: arno@wagner.name Regression: No Created attachment 115261 --> https://bugzilla.kernel.org/attachment.cgi?id=115261&action=edit Kernel config 3.10.19 I recently upgraded my development-server/firewall/NAT-box from 3.10.17 to 3.10.19. Since then I noticed increased DNS lookup failures on a connected Windows box and occasional slow updates on putty-SSH logins when scrolling in an editor (joe, takes something like an estimated 100-300ms for screen updates). These update delays are repeatable for something like 10-20 seconds or more, e.g. inserting a line and then deleting again, then vanish. The delays make remote editing hard to do when they happen. The DNS lookup failures are really annoying. I have not found a way to reliably trigger the problem. Going back to 3.10.17 fixed the issue as far as I can tell. (Several hours editing source code without it showing up.) The only change between the two configurations was that I added the scsi CDROM driver (which should not be able to cause this?). The network connection has an iptables "all pass" on the server side for the affected connection. The client side is a Win7 machine. The network link is GbE with 2 Switches in there. No packet loss on ping/ping -f. Network hardware is Intel 82574L Gigabit card on both sides. -- You are receiving this mail because: You are the assignee for the bug.