When removing ehci_hcd _before_ mounting the disk and starting the copy, the problem does not occur (but then, the copy is unbearingly slow...)
When keeping ehci_hcd, occasionally messages such as the following are logged: usb 4-2.1: reset low speed USB device using ehci_hcd and address -- One broken USB storage device can hang the entire USB subsystem https://bugs.launchpad.net/bugs/136822 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
