This affects me on Natty as well (playing music to USB sound card): Apr 11 13:00:10 bigthink kernel: [12768.612600] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:10 bigthink kernel: [12768.684540] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:10 bigthink kernel: [12768.684558] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:10 bigthink kernel: [12768.757815] usb 3-3.3.1: reset full speed USB device using xhci_hcd and address 7 Apr 11 13:00:10 bigthink kernel: [12768.777141] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e9e7aa80 Apr 11 13:00:10 bigthink kernel: [12768.777144] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e9e7a880 Apr 11 13:00:10 bigthink kernel: [12768.777151] usb 3-3.3.1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes Apr 11 13:00:11 bigthink kernel: [12768.832528] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:11 bigthink kernel: [12768.940492] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:11 bigthink kernel: [12769.096420] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:11 bigthink kernel: [12769.384344] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:11 bigthink kernel: [12769.457216] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:11 bigthink kernel: [12769.476875] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:11 bigthink kernel: [12769.476881] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:11 bigthink kernel: [12769.692172] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:11 bigthink kernel: [12769.765017] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:11 bigthink kernel: [12769.784872] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:11 bigthink kernel: [12769.784878] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:11 bigthink kernel: [12769.792139] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:12 bigthink kernel: [12769.840158] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:12 bigthink kernel: [12770.459866] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:12 bigthink kernel: [12770.779740] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:13 bigthink kernel: [12770.991633] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:13 bigthink kernel: [12771.064684] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:13 bigthink kernel: [12771.084224] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:13 bigthink kernel: [12771.084230] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:13 bigthink kernel: [12771.091597] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:13 bigthink kernel: [12771.164650] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:13 bigthink kernel: [12771.184181] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:13 bigthink kernel: [12771.184188] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:13 bigthink kernel: [12771.267532] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:13 bigthink kernel: [12771.340569] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:13 bigthink kernel: [12771.360236] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:13 bigthink kernel: [12771.360242] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:13 bigthink kernel: [12771.667364] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:13 bigthink kernel: [12771.767362] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:14 bigthink kernel: [12771.839334] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:14 bigthink kernel: [12771.915282] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:14 bigthink kernel: [12772.239120] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:14 bigthink kernel: [12772.547056] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:14 bigthink kernel: [12772.770913] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:15 bigthink kernel: [12772.843857] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:15 bigthink kernel: [12772.863384] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:15 bigthink kernel: [12772.863391] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:15 bigthink kernel: [12773.206748] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:15 bigthink kernel: [12773.454682] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:16 bigthink kernel: [12774.078431] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:16 bigthink kernel: [12774.406256] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:16 bigthink kernel: [12774.479335] usb 3-3.4: reset full speed USB device using xhci_hcd and address 5 Apr 11 13:00:16 bigthink kernel: [12774.498858] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89880 Apr 11 13:00:16 bigthink kernel: [12774.498864] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep e7e89dc0 Apr 11 13:00:17 bigthink kernel: [12775.081985] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:17 bigthink kernel: [12775.353919] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:17 bigthink kernel: [12775.385859] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Apr 11 13:00:18 bigthink kernel: [12775.961633] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint
As you can see this is just spewing into my log... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/647973 Title: USB 3.0 on 10.10 x86_64 : xhci_hcd WARN: Stalled endpoint -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
