BatchARP and IOUnserialize invalid UTF8 errors

[René J.V. Bertin]

Hi,

This is related to MacPorts only because I tend to get the errors (below) in my logfile mostly when I leave Qt's bearer plugins enabled ...

The error:

FIXME: IOUnserialize has detected a string that is not valid UTF-8, ""W³"

The apparent source, from the IORegistry :

{{{
    | |   |   | +-o BCM5701Enet  <class BCM5701Enet, id 0x100000231, registered, matched, active, busy 0 (361 ms), retain 10>
    | |   |   |   | {
    | |   |   |   |   "IOPacketFilters" = {"IONetworkFilterGroup"=0x113,"IOEthernetDisabledWakeOnLANFilterGroup"=0x0,"IOEthernetWakeOnLANFilterGroup"=0x1}
    | |   |   |   |   "IOMaxPacketSize" = 0x233a
    | |   |   |   |   "mDNS_Keepalive" = Yes
    | |   |   |   |   "IOMinPacketSize" = 0x40
    | |   |   |   |   "WOL-State" = "disabled"
    | |   |   |   |   "Configuration Data" = {"StdRcvThreshold"=0x8,"TxCoalescingTicks"=0x96,"JumboRcvThreshold"=0x5,"MTU"=0x233a,"RxCoalescingTicksDuringInt"=0x78,"EnableRxHwCksum"=Yes,"RxMaxCoalescedFrames"=0xf,"TxMaxCoalescedFrames"=0x40,"TxCoalescingTicksDuringInt"=0x96,"RxMaxCoalescedFramesDuringInt"=0xf,"Batch_ARP_Enable"=Yes,"TxSendBuffers"=0x1f4,"TxMaxCoalescedFramesDuringInt"=0x40,"EnableTxHwCksum"=Yes,"RxStdRcvBuffers"=0x1fe,"WOL"="Enable","TxPacketQueueSize"=0x400,"PassUpCRC"=No,"RxJumboRcvBuffers"=0x80,"RxCoalescingTicks"=0x19}
    | |   |   |   |   "IOModel" = "57765-B0"
    | |   |   |   |   "IONameMatched" = "pci14e4,16b4"
    | |   |   |   |   "NVRamInfo" = "Offset=0x2f8, PageSize=264, Chip=AT45DB021D-2Mb-D"
    | |   |   |   |   "BJP_Firmware_Version" = "1.19"
    | |   |   |   |   "Driver_Version" = "3.8.1b2"
    | |   |   |   |   "IOPowerManagement" = {"MaxPowerState"=0x2,"CurrentPowerState"=0x2}
    | |   |   |   |   "FirmwareVersionString" = "57765-v1.37, 0x7287af41"
    | |   |   |   |   "mDNS_KEY" = "2009-07-30"
    | |   |   |   |   "IOMediumDictionary" = {"00000020"={"Index"=0x0,"Type"=0x20,"Flags"=0x0,"Speed"=0x0},"00200023"={"Index"=0x0,"Type"=0x200023,"Flags"=0x0,"Speed"=0xa},"00500030"={"Index"=0x0,"Type"=0x500030,"Flags"=0x0,"Speed"=0x3e8},"08100023"={"Index"=0x0,"Type"=0x8100023,"Flags"=0x0,"Speed"=0xa},"00900026"={"Index"=0x0,"Type"=0x900026,"Flags"=0x0,"Speed"=0x64},"00100026"={"Index"=0x0,"Type"=0x100026,"Flags"=0x0,"Speed"=0x64},"08100030"={"Index"=0x0,"Type"=0x8100030,"Flags"=0x0,"Speed"=0x3e8},"08500026"={"Index"=0x0,"Type"=0x8500026,"Fl$
    | |   |   |   |   "IOMACAddress" = <3c07540cf007>
    | |   |   |   |   "IOFeatures" = 0xa
    | |   |   |   |   "IOVendor" = "Broadcom"
    | |   |   |   |   "IOLinkSpeed" = 0x3b9aca00
    | |   |   |   |   "CFBundleIdentifier" = "com.apple.iokit.AppleBCM5701Ethernet"
    | |   |   |   |   "IOProviderClass" = "IOPCIDevice"
    | |   |   |   |   "IOSelectedMedium" = "00000020"
    | |   |   |   |   "BatchARP" = ""W?≥"
    | |   |   |   |   "IONameMatch" = ("pci14e4,1684","pci14e4,16b0","pci14e4,16b4","pci14e4,1682","pci14e4,1686")
    | |   |   |   |   "IOClass" = "BCM5701Enet"
    | |   |   |   |   "IOLinkStatus" = 0x3
    | |   |   |   |   "IOActiveMedium" = "00500030"
    | |   |   |   |   "IOPCITunnelCompatible" = Yes
    | |   |   |   |   "Partner-Capabilities" = {"1000baseT-EEE"=No,"Pause"=Yes,"10baseT-full-duplex"=Yes,"100baseTX-full-duplex"=Yes,"Asymmetric-Pause"=No,"10baseT-half-duplex"=Yes,"1000baseT-full-duplex"=Yes,"100baseTX-EEE"=No,"100baseTX-half-duplex"=Yes}
    | |   |   |   |   "IOMatchCategory" = "IODefaultMatchCategory"
    | |   |   |   |   "RxPolling" = No
    | |   |   |   |   "IOProbeScore" = 0x0
    | |   |   |   |   "SleepState" = "D0"
    | |   |   |   | }
}}}

Judging from the MAC address, that's my built-in ethernet adapter.

The exact offending string is apparently {'"', 'W', '?', \0342, \0211, \0245} 

I cannot find any information about this `BatchARP` parameter, but none of the other internet devices have it. 
Does anyone know this setting, if it's possible to change it and if so, how?

Thanks,
René