Return-path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:46719 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750734Ab2IMOfp (ORCPT ); Thu, 13 Sep 2012 10:35:45 -0400 Message-ID: <5051EF3C.3020401@lwfinger.net> (sfid-20120913_163602_947819_3D7AAA38) Date: Thu, 13 Sep 2012 09:35:40 -0500 From: Larry Finger MIME-Version: 1.0 To: Norbert Preining CC: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Borislav Petkov Subject: Re: rtl8192se: ping router gives mdev of 25387.102??? References: <20120913101828.GA3309@gandalf.dynalias.org> In-Reply-To: <20120913101828.GA3309@gandalf.dynalias.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 09/13/2012 05:18 AM, Norbert Preining wrote: > Hi everyone, > > (please cc) > > see $subject ... > > No warning, nothing in the logs, but pinging my router I get > things like: > --- 192.168.0.1 ping statistics --- > 376 packets transmitted, 315 received, +33 errors, 16% packet loss, time 405164ms > rtt min/avg/max/mdev = 0.873/10077.793/95935.698/25387.102 ms, pipe 68 > > or > --- 192.168.0.1 ping statistics --- > 1252 packets transmitted, 1225 received, 2% packet loss, time 1252976ms > rtt min/avg/max/mdev = 0.941/764.171/19929.265/2758.225 ms, pipe 20 > > > Has anyone *ever* seen a mdev of 25387.102 ms ??? > > At the same time I am pinging the same router from an iphone with a > steady stream of 40ms or so, no problem whatsoever ... > > $ lspci -v -s 03:00.0 > 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10) > Subsystem: Realtek Semiconductor Co., Ltd. Device e020 > Flags: bus master, fast devsel, latency 0, IRQ 17 > I/O ports at 2000 [size=256] > Memory at f0500000 (32-bit, non-prefetchable) [size=16K] > Capabilities: [40] Power Management version 3 > Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ > Capabilities: [70] Express Legacy Endpoint, MSI 00 > Capabilities: [100] Advanced Error Reporting > Capabilities: [140] Virtual Channel > Capabilities: [160] Device Serial Number 88-55-22-fe-ff-4c-e0-00 > Kernel driver in use: rtl8192se When you post the output of lspci, always include the -nn or -nnv switches. That way, we get the PCI ID. As there are several varieties of the RTL8192SE, I need that info. In addition, what are the details of your AP - STA configuration. What is the distance? Is it 802.11n or 802.11g? What is the signal strength as indicated by iwconfig or a scan? Larry