On Wed, Jul 24, 2013 at 08:25:18AM -0700, Sarah Sharp wrote: > 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". Also, if you need directions for how to compile a custom kernel, please follow this, and clone Linus' latest -rc kernel: http://kernelnewbies.org/KernelBuild 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
