VM stalls when switching from host to guest

[oezy]

VBox 4.3.2 on OSx 10.9 here, 4.3.2 guest additions installed. The same behavior occurs under 4.3.0 and GA 4.3.0.

When activating a guest, it beach balls for about 5 seconds. This happens even when switching between screens associated with the same guest. This happens (at least) for Windows 7 and Ubuntu guests.

I found the following reported to the system log:

11/17/13 1:40:02.000 PM kernel[0]: USBF: 1196007.662 AppleUSBEHCI::Found a transaction which hasn't moved in 5000 milliseconds on bus 0x1d, timing out! (Addr: 5, EP: 0)

THe VBox log shows nothing at all during the delay period.

I tested several times and this message consistently pops up when the delay happens. Disabling USB in the guest has no effect, the delay and usb report still occurs. This may simply be a result of the VM stalling, but I thought it was worth mentioning.

Further notes: Turning off mouse integration solves the delay between switching screens in the same guest because the mouse stays within the context of the guest. However, going back and forth between host and guest still causes this delay (and associated error message in the system log). So it appears to be an issue with activating a guest.

[Frank Mehnert]

Please attach the VBox.log file of such a VM session anyway, even if you think it does not contain useful information. At least it contains your VM configuration which is an important information.