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Ticket Resolution Summary Owner Reporter
#4082 fixed USB pasthrough limited to USB 1.1 speeds Sam Morris
Description

I used Vista Home Basic (SP1) as a host, and conencted a USB mass storage device to the host and configured it to be passed through to the guest.

Transferring files from the disk was limited to 1.1 MB/sec, which is the speed of a USB Full Speed device.

Log messages from the Linux kernel indicate that as far as the guest was concerned, it was a USB 2.0 ("high speed") device:

[    3.967326] ehci_hcd 0000:00:0b.0: EHCI Host Controller
[    3.967417] ehci_hcd 0000:00:0b.0: new USB bus registered, assigned bus number 1
[    3.967711] ehci_hcd 0000:00:0b.0: irq 19, io mem 0xf0805000
[    3.976063] ehci_hcd 0000:00:0b.0: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[    3.976110] usb usb1: configuration #1 chosen from 1 choice
[    3.976126] hub 1-0:1.0: USB hub found
[    3.976130] hub 1-0:1.0: 8 ports detected
[    4.080125] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    4.080127] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    4.080128] usb usb1: Product: EHCI Host Controller
[    4.080129] usb usb1: Manufacturer: Linux 2.6.26-2-amd64 ehci_hcd
[    4.080131] usb usb1: SerialNumber: 0000:00:0b.0

...

[  187.700381] usb 1-1: new high speed USB device using ehci_hcd and address 2
[  188.137721] usb 1-1: configuration #1 chosen from 1 choice
[  188.180643] usb 1-1: New USB device found, idVendor=152d, idProduct=2338
[  188.180677] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=5
[  188.180689] usb 1-1: Product: USB to ATA/ATAPI Bridge
[  188.180700] usb 1-1: Manufacturer: JMicron
[  188.180711] usb 1-1: SerialNumber: C05762222222
#4580 obsolete Guest freeze when using USB disk => Fixed in SVN Sam Morris
Description

I left my guest system backing up to a USB disk via the USB passthrough feature. I came back to it and the guest had frozen. I could still move the mouse but couldn't click on anything, and keypresses sent to the guest were ignored.

It was playing some music at the time, and that stuck too--the audio buffer was repeating the same part of the music over and over.

Host is Vista Home Basic (64-bit) and guest is Debian using Linux 2.6.30.

#4627 fixed Crazy keyboard repeating Sam Morris
Description

After my VM has been running for some time, the keybaord goes a bit crazy. It begins to endlessly autorepeat whatever key was last pressed. e.g., I may press 'a', then KeyPress and KeyRelease events are generated for the 'a' key, forever.

The only way to fix this is to reboot the VM.

The host is Windows Vista Home Basic (64-bit) and guest is Debian using Linux 2.6.30.

I don't remember seeing this bug with versions prior to 3.0, BTW.

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