Hi Jason, It helps if you actually send USB 3.0 problems to me (since I'm the driver maintainer), as I sometimes ignore the linux-usb mailing list for days. :) On Wed, Aug 10, 2011 at 01:28:44PM -0400, jason@xxxxxxxxxxxxxx wrote: > hey folks, since using this usb headset on my laptop, im seeing it freeze (hard lockup and need to powercycle to recover) every so > often. Freeze, as in you need to reboot your computer? Or powercycle as in you needed to unplug and replug in the USB device? > Im not positive its related to the usb, but just thought I would ask.. here are some of the things i keep seeing over and over > in my logs.. I'm debugging hard hang with a USB headset with someone else, so if you're seeing a system hang, you may be hitting the same bug: https://bugzilla.kernel.org/show_bug.cgi?id=40702 > Aug 10 13:00:52 zim kernel: [ 9213.310984] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:00:52 zim kernel: [ 9213.366924] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:00:53 zim kernel: [ 9213.574746] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:01:25 zim kernel: [ 9245.617408] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:01:29 zim kernel: [ 9250.068321] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:01:29 zim kernel: [ 9250.077261] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:02:06 zim kernel: [ 9286.515938] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:02:16 zim kernel: [ 9296.768432] ALSA sound/usb/urb.c:462 frame 0 active: -18 > Aug 10 13:02:43 zim kernel: [ 9324.145472] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:02:44 zim kernel: [ 9324.625021] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:03:19 zim kernel: [ 9360.248437] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:03:20 zim kernel: [ 9360.408271] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:03:20 zim kernel: [ 9360.592091] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:03:20 zim kernel: [ 9361.100613] ALSA sound/usb/urb.c:462 frame 0 active: -18 > Aug 10 13:03:21 zim kernel: [ 9361.535214] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:03:21 zim kernel: [ 9362.070589] ALSA sound/usb/urb.c:462 frame 0 active: -18 > Aug 10 13:03:57 zim kernel: [ 9397.430331] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > Aug 10 13:03:58 zim kernel: [ 9398.401442] ALSA sound/usb/urb.c:462 frame 0 active: -18 > Aug 10 13:03:58 zim kernel: [ 9398.685202] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint > please let me know if these messages are benign or not. All the log shows is that there was a lot of transfer errors, and the device was eventually disconnected. Maybe you have a bad connection? Does the device disconnect under EHCI? 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