Huge log files: USB errors with no devices attached

[IanB]

Hi
I've had my new B3 a few days, and noticed that /var/log/kern.log (and syslog) are growing rapidly:

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Nov  2 15:46:00 b3 kernel: [154455.037612] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:00 b3 kernel: [154455.297615] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:00 b3 kernel: [154455.547614] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:00 b3 kernel: [154455.807488] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:01 b3 kernel: [154456.057487] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:01 b3 kernel: [154456.317490] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:01 b3 kernel: [154456.577489] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:01 b3 kernel: [154456.827487] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:02 b3 kernel: [154457.087363] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:02 b3 kernel: [154457.337365] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:02 b3 kernel: [154457.597364] hub 1-1:1.0: unable to enumerate USB device on port 2
Nov  2 15:46:02 b3 kernel: [154457.857362] hub 1-1:1.0: unable to enumerate USB device on port 2

So that's 4 errors every second...

There are no external devices connected at all.

Anyone else seeing this?

thanks,
Ian

[Cheeseboy]

Hi IanB, and welcome to the forum.

No, I have never seen that. There has been posts with the same message on the forum in the past (http://forum.excito.net/viewtopic.php?f=9&t=2579
http://forum.excito.net/viewtopic.php?f=9&t=2470)
but not without anything attached.

I don't know about this stuff, but my guess would be that the error is referring to the "Genesys Logic, Inc. USB-2.0 4-Port HUB", which should be an internal device.

Here is my humble advice:
Install usbutils

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sudo apt-get install usbutils

do

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sudo lsusb -v >lsusb.out

and email support@excito.com with the result.
It might be a hardware issue...

Best regards,

Cheeseboy

[pcrene]

Hello

Last year i had the same, but the reason for me to get these lines was a pasive usb hub connected.

Rene

[IanB]

Thanks Cheeseboy and pcrene for the feedback.

I've investigated a bit more, by attaching a USB sound device to the B3.
It was recognised straight away and the error messages stopped.

On the other hand - removing the sound device and plugging it in again doesn't
work reliably, sometimes it's recognised and sometimes not. At one point I
seemed to have two sound devices attached...

I'll install usbutils and take another look.

Regards,
Ian

[johannes]

This sounds strange and nothing we have seen here before. It is not impossible that you have a shaky USB hub on your motherboard. If you won't get it working you can always send your B3 to us for motherboard replacement.