Date: Wed, 21 Nov 2007 10:11:20 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: freebsd-current@FreeBSD.ORG Subject: Re: Sockets stuck in SYN_RCVD (re(4), RELENG_7, i386) Message-ID: <20071121011120.GB13817@cdnetworks.co.kr> In-Reply-To: <200711201519.lAKFJIg5055231@lurza.secnetix.de> References: <200711201016.lAKAGPj0043221@lurza.secnetix.de> <200711201519.lAKFJIg5055231@lurza.secnetix.de>
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On Tue, Nov 20, 2007 at 04:19:18PM +0100, Oliver Fromme wrote: > Some additional information. > > Today I have run the re(4) interface at 100 Mbps for a few > hours. The count did still increase, so it's not a GigE- > only problem. > > The I disabled RXCSUM,TXCSUM on the interface. Again, the > counter still increased. So hardware checksumming isn't > the cause of the problem either. > > Anything else I could try? > re(4) is not smart enough to analyze packet payload. The hardware also doesn't have a feature like TCP header split so I think re(4) wouldn't have influence with TCP traffics by itself. Your dmesg indicates that you're using slightly old rgephy(4) on 7.0. I touched rgephy(4) to support a newer PHY and fixed several bugs. If speed/duplex mismatch was the cause of the issue you can see lots of input errors from the output of "netstat -ndi" output. If so, try latest rgephy(4). > > net.inet.tcp.syncache.count: 702 > > It's now at 731. > > Best regards > Oliver > > PS: pciconf -lv says: > > re0@pci0:0:13:0: class=0x020000 card=0x094c1462 chip=0x816910ec rev=0x10 hdr=0x00 > vendor = 'Realtek Semiconductor' > device = 'RTL8110SB Single-Chip Gigabit LOM Ethernet Controller' > class = network > subclass = ethernet > > dmesg says: > > re0: <RealTek 8169SB/8110SB Single-chip Gigabit Ethernet> port 0xe000-0xe0ff mem 0xfd021000-0xfd0210ff irq 16 at device 13.0 on pci0 > miibus0: <MII bus> on re0 > rgephy0: <RTL8169S/8110S media interface> PHY 1 on miibus0 > rgephy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto > re0: Ethernet address: 00:16:17:99:d3:69 > re0: [FILTER] > > ifconfig says (IP addresses masked): > > re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> > ether 00:16:17:99:d3:69 > inet a.b.c.75 netmask 0xffffffe0 broadcast a.b.c.95 > inet a.b.d.138 netmask 0xfffffff8 broadcast a.b.d.143 > inet a.b.d.139 netmask 0xfffffff8 broadcast a.b.d.143 > inet a.b.d.140 netmask 0xfffffff8 broadcast a.b.d.143 > inet a.b.d.141 netmask 0xfffffff8 broadcast a.b.d.143 > inet a.b.d.142 netmask 0xfffffff8 broadcast a.b.d.143 > media: Ethernet autoselect (1000baseTX <full-duplex>) > status: active > -- Regards, Pyun YongHyeon
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