The problem still exists here with various USB3 disks. System information: MacBook Air 6,2 with two USB3 ports Kernel version: 3.12.13-031213-generic
reading large amounts of data seems to be no problem, but when writing data, the error occours: l 9 12:39:47 ishtar kernel: [ 1492.741609] usb 2-2: reset SuperSpeed USB device number 7 using xhci_hcd ==> /var/log/syslog <== Jul 9 12:39:47 ishtar kernel: [ 1492.757475] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801c601ec80 Jul 9 12:39:47 ishtar kernel: [ 1492.757482] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801c601ecc0 ==> /var/log/kern.log <== Jul 9 12:39:47 ishtar kernel: [ 1492.757475] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801c601ec80 Jul 9 12:39:47 ishtar kernel: [ 1492.757482] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801c601ecc0 I have cross-checked the disks on different systems with USB2 ports: its not a faulty disk! Help and solutions is highly appreciated -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1284399 Title: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c0ef0a00 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1284399/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
