Sockets stuck in SYN_RCVD (re(4), RELENG_7, i386)

Oliver Fromme olli at lurza.secnetix.de
Tue Nov 20 07:19:26 PST 2007


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?

 > net.inet.tcp.syncache.count: 702

It's now at 731.

Best regards
   Oliver

PS:  pciconf -lv says:

re0 at 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

-- 
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
Handelsregister: Registergericht Muenchen, HRA 74606,  Geschäftsfuehrung:
secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün-
chen, HRB 125758,  Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart

FreeBSD-Dienstleistungen, -Produkte und mehr:  http://www.secnetix.de/bsd

I suggested holding a "Python Object Oriented Programming Seminar",
but the acronym was unpopular.
        -- Joseph Strout


More information about the freebsd-current mailing list