Problem with VirtualBox

[nick gigashvili]

Hi

Im using virtualbox-ose-4.3.6 and during installation of guest os
it is stalled. I've tried to install Windows and Linux and both are
freezed  duing installation any help will be appreciated.

I've checked the log and got this:

AioMgr0-N: Request 0x0000082c469400 failed with rc=VERR_TRY_AGAIN,
migrating endpoint
/home/pyb/vm/virtualbox-vms/debian-amd64-dev/debian-amd64-dev.vdi to
failsafe manager.
00:03:35.000794 AIOMgr: I/O manager 0x00000821b374a0 encountered a critical
error (rc=VERR_FILE_AIO_NO_REQUEST) during operation. Falling back to
failsafe mode. Expect reduced performance
00:03:35.000823 AIOMgr: Error happened in
/usr/ports/emulators/virtualbox-ose/work/VirtualBox-4.3.26/src/VBox/VMM/VMMR3/PDMAsyncCompletionFileNormal.cpp:(1664){int
pdmacFileAioMgrNormal(RTTHREAD, void *)}
00:03:35.000833 AIOMgr: Please contact the product vendor

Thanks