Re: URB Queueing for Memory Constrained HCs

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On Thu, 22 Oct 2009, Greg Crocker wrote:

> I removed the queue and the system is working well, with the exception
> of an error message from usbnet.c
> 
> drivers/net/usb/usbnet.c
> @@ -278,7 +278,7 @@ void usbnet_defer_kevent (struct usbnet *dev, int work)
>  {
>         set_bit (work, &dev->flags);
>         if (!schedule_work (&dev->kevent))
>                 deverr (dev, "kevent %d may have been dropped", work);
>         else
>                 devdbg (dev, "kevent %d scheduled", work);
>  }
> 
> I am seeing a significant number of kevent 2 may have been dropped
> messages.  Should this be converted to a debug statement instead of an
> error, rate limited, or removed?

I have no idea; you should ask the people responsible for this driver.

Alan Stern

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