From: Hans de Goede
> These errors should never happen, so lets add some extra info when they happen
> to make figuring out what is going on easier.
I've previously posted a patch that include the 'DMA ptr' itself.
IIRC I was generating one of the error events where the pointer is
the address of a command ring entry.
(I think I was using the wrong type of NOP command.)
David
>
> Signed-off-by: Hans de Goede <hdego...@redhat.com>
> ---
> drivers/usb/host/xhci-ring.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
> index 749fc68..5542dfe 100644
> --- a/drivers/usb/host/xhci-ring.c
> +++ b/drivers/usb/host/xhci-ring.c
> @@ -2504,7 +2504,9 @@ static int handle_tx_event(struct xhci_hcd *xhci,
> /* HC is busted, give up! */
> xhci_err(xhci,
> "ERROR Transfer event TRB DMA ptr not "
> - "part of current TD\n");
> + "part of current TD ep_index %d "
> + "comp_code %u\n", ep_index,
> + trb_comp_code);
> return -ESHUTDOWN;
> }
>
> --
> 2.0.1
>
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