[SOLVED]Win7 64bit Can't start second VM E_FAIL (0x80004005)

[elfarto]

I have two VMs running on my Win7 64 4.3.10 Host
VM #1: Windows XP 32 bit
VM #2: Windows 7 64 bit

Any of the VMs run just fine when ran alone, if you try to start one of them while the other is running I get:


"Failed to open a session for the Virtual Machine xxxx"
And:
Failed to open a session for the virtual machine XP 2.

Code: Select all

The VM session was closed before any attempt to power it on.

Result Code: E_FAIL (0x80004005)
Component: SessionMachine
Interface: ISession {12f4dcdb-12b2-4ec1-b7cd-ddd9f6c5bf4d}

Any ideas will be highly welcome !



LOG Deleted as it was irrelevant

[loukingjr]

as a guess, you don't have enough memory or cores to run both guest machines plus the host at one time.

[elfarto]

Thanks, but this is a quad core system with 8GB of RAM, there is plenty of both to run both VMs.

[loukingjr]

as I said, it was a guess.

[Perryg]

When the second guest start is attempted, does it create a log file or just the error message?
If it creates a log file post that as an attachment.

[elfarto]

It creates a log, that i attached to the original post.
Log analysis has been inconclusive for me..
No errors or anything.
Last lines are:

Code: Select all

00:00:56.492747 UIMediumEnumerator: Machine (or snapshot) event received, ID = bd521bd4-3914-4601-85de-f2514781d1d6
00:00:56.492813 UIMediumEnumerator:  Old usage: 3ccbc1dc-0c70-4feb-85ae-bbc7d0109ebf
00:00:56.504690 UIMediumEnumerator:  New usage: 3ccbc1dc-0c70-4feb-85ae-bbc7d0109ebf
00:00:56.504720 UIMediumEnumerator: Machine (or snapshot) event processed, ID = bd521bd4-3914-4601-85de-f2514781d1d6
00:00:56.572851 UIMediumEnumerator: Machine (or snapshot) event received, ID = bd521bd4-3914-4601-85de-f2514781d1d6
00:00:56.572895 UIMediumEnumerator:  Old usage: 3ccbc1dc-0c70-4feb-85ae-bbc7d0109ebf
00:00:56.600123 UIMediumEnumerator:  New usage: 3ccbc1dc-0c70-4feb-85ae-bbc7d0109ebf
00:00:56.600144 UIMediumEnumerator: Machine (or snapshot) event processed, ID = bd521bd4-3914-4601-85de-f2514781d1d6

[Perryg]

Something on the host is not happy with two guests. What happens if you reboot the host to clear out all cache and then start the xp first, then the Win 7?

[elfarto]

I rebooted the host countless times, no matter what the order is, if one VM is up, the other won't start.
BTW, i just verified that no logs are generated when the error ocurrs, the logs are just not updated (either the VM or the Virtualbox main logs)
I'm puzzled about this one.

[Perryg]

What does the VBoxSVC.log show?

[elfarto]

Nothing...
VBOXSvc.log seems to be rotated and that's all.

Code: Select all

195:54:34.388486          Log continuation - Log started 2014-04-14T16:19:57.471475400Z

Forgot to mention: The complete error reads

Code: Select all

Failed to open a session for Virtual Machine Win7" The VM session was closed before any attempt to power it on

[mpack]

Please attach a complete log for the error session of the second VM. Compress the log (i.e. zip) before posting it.

[rpmurray]

Both VMs aren't trying to mount the same CD or .ISO file, are they?

[elfarto]

Managed to fix this one.
Turns out to be that Virtualbox doesn't like when .vbox files for two different VMs are in the same directory.
Moved the .vbox file to another directory and that fixed the problem .!

[loukingjr]

I'm not even going to ask.

[elfarto]

In case you wonder, this is a very old virtualbox installation that has been carried over one upgrade after the other for more than 4 years, so there is a mix of old and new locations that ultimately led to having both vbox files in the same dir..