If we receive a transfer event but cannot find the corresponding TRB in the currently executing TD and there is no Missed Service Event, it means something bad happens. Print out event ring and ep ring in this case. Signed-off-by: Andiry Xu <andiry.xu@xxxxxxx> --- drivers/usb/host/xhci-ring.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 91ca32b..edf1804 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2195,6 +2195,10 @@ static int handle_tx_event(struct xhci_hcd *xhci, xhci_err(xhci, "ERROR Transfer event TRB DMA ptr not " "part of current TD\n"); + xhci_warn(xhci, "Event Ring:\n"); + xhci_debug_ring(xhci, xhci->event_ring, 1); + xhci_warn(xhci, "EP Ring:\n"); + xhci_debug_ring(xhci, ep_ring, 1); return -ESHUTDOWN; } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
