Date: Wed, 6 Feb 2008 04:32:07 +0200 From: Nikolay Pavlov <qpadla@gmail.com> To: Krassimir Slavchev <krassi@bulinfo.net> Cc: freebsd-current@freebsd.org Subject: Re: IP bad-len 0 Message-ID: <200802060432.08445.qpadla@gmail.com> In-Reply-To: <47A82DA5.3060504@bulinfo.net> References: <200802042142.38606.qpadla@gmail.com> <47A82DA5.3060504@bulinfo.net>
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On Tuesday 05 February 2008 11:34:29 Krassimir Slavchev wrote: > Hi, > Can you try: > net.inet.tcp.rfc1323=0 Not working for me. Any other thoughts? > > Nikolay Pavlov wrote: > > Did someone knows what's that mean? > > > > root@cassini:~# tcpdump -n host xx.162.141.1 and port 80 > > tcpdump: verbose output suppressed, use -v or -vv for full protocol > > decode listening on em0, link-type EN10MB (Ethernet), capture size 96 > > bytes 17:04:40.734189 IP xx.162.141.1.47484 > xxx.53.51.235.80: S > > 3567180455:3567180455(0) win 5840 <mss 1452,sackOK,timestamp 8804899 > > 0,nop,wscale 6> > > 17:04:40.734236 IP xx.53.51.235.80 > xx.162.141.1.47484: S > > 3608546905:3608546905(0) ack 3567180456 win 8192 <mss 1452,nop,wscale > > 5,sackOK,timestamp 709854070 8804899> > > 17:04:40.925032 IP xx.162.141.1.47484 > xxx.53.51.235.80: . ack 1 win > > 92 <nop,nop,timestamp 8804947 709854070> > > 17:04:40.933559 IP xx.162.141.1.47484 > xxx.53.51.235.80: P 1:935(934) > > ack 1 win 92 <nop,nop,timestamp 8804947 709854070> > > 17:04:40.995133 IP bad-len 0 > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > > > I see quite a lot of this messages on my web server xxx.53.51.235 and > > the connection is a bit sluggish sometimes. > > It's a em card on 7.0-RC1 GENERIC amd64 kernel: > > > > em0@pci0:6:0:0: class=0x020000 card=0x109a15d9 chip=0x109a8086 > > rev=0x00 hdr=0x00 > > vendor = 'Intel Corporation' > > device = '82573L Intel PRO/1000 PL Network Adaptor' > > class = network > > subclass = ethernet > > > > dev.em.0.%desc: Intel(R) PRO/1000 Network Connection Version - 6.7.3 > > dev.em.0.%driver: em > > dev.em.0.%location: slot=0 function=0 handle=\_SB_.PCI0.EXP5.PXS5 > > dev.em.0.%pnpinfo: vendor=0x8086 device=0x109a subvendor=0x15d9 > > subdevice=0x109a class=0x020000 > > dev.em.0.%parent: pci6 > > dev.em.0.debug: -1 > > dev.em.0.stats: -1 > > dev.em.0.rx_int_delay: 0 > > dev.em.0.tx_int_delay: 66 > > dev.em.0.rx_abs_int_delay: 66 > > dev.em.0.tx_abs_int_delay: 66 > > dev.em.0.rx_processing_limit: 100 > > dev.sc.0.%desc: System console -- ====================================================================== - Best regards, Nikolay Pavlov. <<<----------------------------------- ======================================================================
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