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    Subject2.6.31.4: USB/UPS connectivity issue on Intel DP55KG Motherboard [DEBUG logs included upsd/upsmon/usbhid-ups]

    On Wed, 14 Oct 2009, Justin Piszcz wrote:

    >
    >
    > On Wed, 14 Oct 2009, Justin Piszcz wrote:
    >
    >> Hi,
    >>
    >> I have included debugging logs-- see below, is this a nut or kernel/USB
    >> subsystem issue?
    >>
    >> Robert/Nut User List--
    >>
    >> Looks like the data goes stale, please let me know if any more
    >> logs/debugging is required, is this a kernel/usb problem or a nut issue? I
    >> recall a change in the USB subsystem a few kernel versions back caused a
    >> different issue (on a different UPS, but nevertheless it was kernel
    >> related).
    >

    The details+logs are here (previous e-mail did not go through, too large for
    the list):
    wget http://home.comcast.net/~jpiszcz/20091014/nut-problem.txt

    For now I have disabled nut-- is there any more debugging that I can do to
    help find/solve the problem? Also cc'ing linux-usb & linux-kernel on this
    one.

    Highlights from the above txt file:

    Pinging UPS [apc]
    mainloop: polling 3 filedescriptors
    Got PONG from UPS [apc]
    mainloop: polling 3 filedescriptors
    mainloop: no data available
    mainloop: polling 3 filedescriptors
    sstate_dead: driver for UPS [apc] says data is stale
    Data for UPS [apc] is stale - check driver
    mainloop: polling 3 filedescriptors
    mainloop: no data available
    sstate_dead: driver for UPS [apc] says data is stale
    mainloop: polling 3 filedescriptors
    Sending error [DATA-STALE] to client 127.0.0.1
    write: [destfd=6] [len=15] [ERR DATA-STALE]
    sstate_dead: driver for UPS [apc] says data is stale
    mainloop: polling 3 filedescriptors
    mainloop: no data available
    sstate_dead: driver for UPS [apc] says data is stale
    mainloop: polling 3 filedescriptors

    Entering libusb_get_report
    Report[get]: (2 bytes) => 50 16
    PhyMax = 0, PhyMin = 0, LogMax = 100, LogMin = 0
    get_unit_expo: 00000000 found 0
    Path: UPS.PowerConverter.PercentLoad, Type: Feature, ReportID: 0x50, Offset: 0, Size: 8, Value: 22.000000
    Entering libusb_get_report
    Can't retrieve Report 21: Broken pipe
    send_to_one: PONG
    upsdrv_updateinfo...
    Got to reconnect!

    The same cable, UPS etc was used on another motherboard for 1-2+ years without
    any issue, after moving it to a DP55KG, this problem began.

    Justin.


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