id summary reporter owner description type status component version resolution keywords cc guest host 6724 USB devices in guest don't attach when EHCI enabled Jan Ploski "I'm using Debian as host, experimenting with Debian and Finnix (a Debian-based LiveCD) as guests. I'm unable to attach an external storage USB 2.0 device in guest if the EHCI controller is enabled (I tried with a flash disk and external HD). It works ok with the EHCI controller disabled. I'm observing dmesg in guest, with the following symptoms: 1. The device appears to be recognized (e.g. id, serial number appear correctly) 2. After that I get a series of ""reset high speed USB device using ehci_hcd"" messages with a few seconds delay between them. 3. Finally a message ""Device offlined - not ready after error recovery"" appears. When I detach and re-attach the device, the sequence of messages is repeated." defect closed USB VirtualBox 3.2.0 obsolete Linux Linux