﻿id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
6905	Can't spawn some VMs with a SATA HDD controller when the VDI file is on a btrfs partition => fixed in SVN	rocko		"!VirtualBox can't spawn some VMs if both these conditions are true:

 * the HDD storage controller is set to SATA, and
 * the VDI file is on a btrfs partition.

VBox shows a window saying ""Spawning..."" and later another box appears saying ""Spawning (20%)... 2/2"". Neither box ever disappears (their processes must be killed).

An example error in the log is:


{{{
00:00:00.733 AioMgr0-N: Request 0x000000018b0df0 failed with rc=VERR_INVALID_PARAMETER, migrating endpoint /vbox/maverick32-2.vdi to failsafe manager.
}}}

Note however that some VDI files do load successfully from the btrfs partition using the SATA controller.


Workaround are:

 * Moving the VDI file to an ext4 partition fixes the problem.
 * Changing the storage type for the HDD to IDE instead of SATA also fixes the problem (ie even if the VDI file is on the btrfs partition).


Version info:

VirtualBox: 3.2.2-62298~Ubuntu~lucid
Host: Ubuntu 10.04, kernel 2.6.34-generic or 2.6.35-rc1-generic

"	defect	closed	virtual disk	VirtualBox 3.2.2	obsolete			Linux	Linux
