On Wed, Jul 24, 2013 at 03:39:01PM +0200, Vincent Thiele wrote: > Nexus 4 causes system hang (xhci_hcd): It helps if you Cc the xHCI driver maintainer (me) on bug reports. Otherwise you run the risk of getting lost in my inbox. :) > When I connect my Nexus 4 to the USB-Port (Front USB 3.0) the whole > system hangs. Sometimes it starts working again after a short time. > But often I need to press the reset button. > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1203453 When you say "hang" what do you mean? Does the computer completely freeze, so that you can't ssh into it? Or does all the USB devices simply stop working? (Note, if you've got a USB mouse and keyboard attached to the system, it will be hard to figure out if the xHCI driver has died or the system is actually hung unless you can ssh into the box.) What type of USB device is the Nexus acting as? Is it an MTP mass storage device, or an ethernet device? First, please send me dmesg from the times when it doesn't hang, but starts working again. It would be most useful for me if you could recompile your kernel with CONFIG_USB_DEBUG and CONFIG_USB_XHCI_HCD_DEBUGGING turned on, and then attempt to capture a "hang". Sarah Sharp -- 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
