I see similar problems when plugging in a USB3 hard drive. After connecting the hard drive, sometimes I can access it and other times it is unavailable. After some time it becomes unavailable. The drive works fine when connected to the same laptop on a USB2 port. The laptop is a Lenovo W510.
This makes USB3 completely unusable for me. Mar 23 13:43:39 homer kernel: [13174.517769] usb 3-2: new SuperSpeed USB device using xhci_hcd and address 2 Mar 23 13:43:39 homer kernel: [13174.562390] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:43:39 homer kernel: [13174.568240] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:43:39 homer kernel: [13174.574225] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:43:39 homer kernel: [13174.580251] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:43:39 homer kernel: [13174.610439] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:43:39 homer kernel: [13174.617689] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:43:40 homer kernel: [13175.792548] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:43:40 homer kernel: [13175.916785] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:43:41 homer kernel: [13176.534112] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:43:41 homer kernel: [13176.802625] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:42 homer kernel: [13237.836603] usb 3-2: reset SuperSpeed USB device using xhci_hcd and address 2 Mar 23 13:44:42 homer kernel: [13237.877342] xhci_hcd 0000:0f:00.0: WARN: short transfer on control ep Mar 23 13:44:42 homer kernel: [13237.877443] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801cf0d5b00 Mar 23 13:44:42 homer kernel: [13237.877451] xhci_hcd 0000:0f:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801cf0d5b40 Mar 23 13:44:44 homer kernel: [13239.357569] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:44 homer kernel: [13239.397913] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:44 homer kernel: [13239.472304] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:44 homer kernel: [13239.582338] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:44 homer kernel: [13239.864009] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:45 homer kernel: [13240.827901] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:45 homer kernel: [13240.903146] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:45 homer kernel: [13240.977676] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:46 homer kernel: [13241.249024] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:44:46 homer kernel: [13241.560468] xhci_hcd 0000:0f:00.0: WARN: Stalled endpoint Mar 23 13:45:49 homer kernel: [13304.742774] xhci_hcd 0000:0f:00.0: WARN: transfer error on endpoint Mar 23 13:46:40 homer kernel: [13355.106191] xhci_hcd 0000:0f:00.0: Timeout while waiting for a slot Mar 23 13:47:30 homer kernel: [13405.291735] xhci_hcd 0000:0f:00.0: Timeout while waiting for a slot Mar 23 13:48:20 homer kernel: [13455.594495] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:49:10 homer kernel: [13505.842290] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:50:01 homer kernel: [13556.087282] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:50:51 homer kernel: [13606.332737] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:51:41 homer kernel: [13656.578006] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:52:31 homer kernel: [13706.672592] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:53:22 homer kernel: [13756.917003] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:54:12 homer kernel: [13807.161977] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:55:02 homer kernel: [13857.409766] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:55:52 homer kernel: [13907.653250] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:56:43 homer kernel: [13957.748429] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:57:33 homer kernel: [14007.993070] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:58:23 homer kernel: [14058.239068] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 13:59:13 homer kernel: [14108.484313] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 14:00:04 homer kernel: [14158.729612] xhci_hcd 0000:0f:00.0: Timeout while waiting for reset device command Mar 23 14:00:54 homer kernel: [14208.836868] xhci_hcd 0000:0f:00.0: Timeout while waiting for a slot -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
