Messages in this thread | | | Date | Mon, 25 Nov 2013 06:31:54 -0800 | From | Greg KH <> | Subject | Re: 3.12.1 Virt dev invalid for slot_id 0x1 |
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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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