[mythtv-users] MCE IR receiver hangs computer, bad hardware?

Greg Oliver oliver.greg at gmail.com
Tue Aug 17 18:49:00 UTC 2010


On Tue, Aug 17, 2010 at 12:46 PM, Kevin Ross <kevin at familyross.net> wrote:
>  I've been plagued with random system freezes on one frontend over the last
> few months.  The system would freeze sometimes in the middle of the night
> while idle, or sometimes while watching a show.  Sometimes it would go days
> without freezing, sometimes it would freeze several times a day.
>
> When it would freeze, I couldn't switch to the text console to see any
> kernel messages, and the logs were clean on reboot.  So I finally got around
> to setting up netconsole (and also NMI watchdog to automatically reboot when
> the system freezes) to try to capture something.  And I caught a freeze, and
> it appears to be the MCE IR receiver:
>
> Aug 17 00:40:02 bedroom [207645.931122] usb 3-1: USB disconnect, address 7
> Aug 17 00:40:02 bedroom [207645.931407] lirc_mceusb2[7]: usb remote
> disconnected
> Aug 17 00:40:07 bedroom [207649.108618] BUG: NMI Watchdog detected LOCKUP
>
> Backtracking through my logs, it appears the mceusb receiver disconnects and
> reconnects at random times, like this:
>
> Aug 16 17:11:08 bedroom [180713.991304] usb 3-1: USB disconnect, address 5
> Aug 16 17:11:08 bedroom [180713.991736] lirc_mceusb2[5]: usb remote
> disconnected
> Aug 16 17:11:09 bedroom [180715.400031] usb 3-1: new full speed USB device
> using ohci_hcd and address 6
> Aug 16 17:11:09 bedroom [180715.612386] usb 3-1: config 1 interface 0
> altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32
> Aug 16 17:11:09 bedroom [180715.612408] usb 3-1: config 1 interface 0
> altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 32
> Aug 16 17:11:09 bedroom [180715.624388] usb 3-1: New USB device found,
> idVendor=1784, idProduct=0008
> Aug 16 17:11:09 bedroom [180715.624405] usb 3-1: New USB device strings:
> Mfr=1, Product=2, SerialNumber=3
> Aug 16 17:11:09 bedroom [180715.624424] usb 3-1: Product: eHome Infrared
> Transceiver
> Aug 16 17:11:09 bedroom [180715.624431] usb 3-1: Manufacturer: Topseed
> Technology Corp.
> Aug 16 17:11:09 bedroom [180715.624445] usb 3-1: SerialNumber: TS000EUd
> Aug 16 17:11:09 bedroom [180715.624680] usb 3-1: configuration #1 chosen
> from 1 choice
> Aug 16 17:11:09 bedroom [180715.792036] usb 3-1: reset full speed USB device
> using ohci_hcd and address 6
> Aug 16 17:11:10 bedroom [180715.998364] lirc_dev: lirc_register_plugin:
> sample_rate: 0
> Aug 16 17:11:10 bedroom [180716.004364] lirc_mceusb2[6]: Topseed Technology
> Corp. eHome Infrared Transceiver on usb3:6
>
>
> Aug 16 18:01:43 bedroom [183749.221823] usb 3-1: USB disconnect, address 6
> Aug 16 18:01:43 bedroom [183749.222509] lirc_mceusb2[6]: usb remote
> disconnected
> Aug 16 18:01:44 bedroom [183749.980033] usb 3-1: new full speed USB device
> using ohci_hcd and address 7
> Aug 16 18:01:44 bedroom [183750.192193] usb 3-1: config 1 interface 0
> altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32
> Aug 16 18:01:44 bedroom [183750.192223] usb 3-1: config 1 interface 0
> altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 32
> Aug 16 18:01:44 bedroom [183750.204185] usb 3-1: New USB device found,
> idVendor=1784, idProduct=0008
> Aug 16 18:01:44 bedroom [183750.204203] usb 3-1: New USB device strings:
> Mfr=1, Product=2, SerialNumber=3
> Aug 16 18:01:44 bedroom [183750.204223] usb 3-1: Product: eHome Infrared
> Transceiver
> Aug 16 18:01:44 bedroom [183750.204231] usb 3-1: Manufacturer: Topseed
> Technology Corp.
> Aug 16 18:01:44 bedroom [183750.204244] usb 3-1: SerialNumber: TS000EUd
> Aug 16 18:01:44 bedroom [183750.204475] usb 3-1: configuration #1 chosen
> from 1 choice
> Aug 16 18:01:44 bedroom [183750.384036] usb 3-1: reset full speed USB device
> using ohci_hcd and address 7
> Aug 16 18:01:44 bedroom [183750.590171] lirc_dev: lirc_register_plugin:
> sample_rate: 0
> Aug 16 18:01:44 bedroom [183750.596164] lirc_mceusb2[7]: Topseed Technology
> Corp. eHome Infrared Transceiver on usb3:7
>
>
> Anyone seen anything like this?  I don't think it's a bad USB controller,
> because I was getting the same type of random freezes on another computer
> (using the same MCE USB receiver, which I moved to this computer).  So this
> leads me to believe the problem is either the hardware, or the driver (no
> offense meant to the author).  Are these random disconnects/reconnects
> normal?  Is that indicative of flaky hardware (my guess is yes)?
>
> If the consensus is yes, my IR receiver is crap, what would be a good
> reliable IR receiver to use with LIRC?

I have those same transceivers throughout my house..  I can say that
with 2.6.32 kernels I wouls sometimes get lockup starting lircd..  I
would never get random freezes though..  With 2.6.34 all of that has
disappeared..  Same lirc version though..

-Greg


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