On Thu, Nov 21, 2013 at 04:29:31PM -0700, Shuah Khan wrote:
> I started seeing the following on my Samsung Series on 3.12.1
>
> Is this bad? Looks like the following WARN_ON is firing:
>
> drivers/usb/host/xhci.c:
>
> if (WARN_ON(!virt_dev)) {
> /*
> * In plug/unplug torture test with an NEC controller,
> * a zero-dereference was observed once due to virt_dev
> = 0.
> * Print useful debug rather than crash if it is
> observed again!
> */
> xhci_warn(xhci, "Virt dev invalid for slot_id 0x%x!\n",
> udev->slot_id);
> return -EINVAL;
> }
I suggest sending this to the linux-usb@vger mailing list and cc: the
xhci author/maintainer so they are aware of this.
thanks,
greg k-h
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