Error 0x000000C4 when booting Windows 7 x64 (Ubuntu 12.04 x64 host) after update to 4.3.8-92456 [FIXED in SVN]

[uchuujin]

Hello!

I just encountered the following error:

• Host OS: Ubuntu 12.04 x64
• Updated Virtualbox 4.3.6-91406 to 4.3.8-92456 from the official Virtualbox repository
• Updated the guest additions too
• Started Windows 7 x64 virtual machine (was running fine before)
• The machine crashed with error STOP: 0x000000C4 upon startup

After that, I tried the following:

• the solution suggested in https://www.virtualbox.org/ticket/11841 (VBoxManage setextradata [vmname] VBoxInternal/CPUM/CMPXCHG16B 1)
• Downgrading guest additions to 4.3.6-91406
• Removing guest aditions altogether
• Turning off hardware acceleration (graphics, CPU)

None of this works. My virtual machine crashes everytime, so I cannot use it anymore.

Please find a capture of the error message and Vbox.log attached.

[uchuujin]

Screenshot of BSOD in guest OS (Win 7 x64)

[uchuujin]

Virtual Box log file

[GGos]

Logfile starting Win8 64 bit Guest

[GGos]

I have the same problem with a Windows 8 64 bit guest on Ubuntu 12.04 64bit afer updating from 4.3.6 to 4.3.8.

Only downgrading to 4.2.22 helped to start the machine again.

In the logfile, there is an Error at 00:00:02.187981 ERROR [COM]: aRC=VBOX_E_IPRT_ERROR ... but the machine still keeps running a little bit until 00:00:19.753946 IEM: wrmsr(0xc0000080,0x0`00004d01) -> GP(0). That is the point when the 0x000000C4 - Error-Message appears on the Guest. (detailed Log see attachment "VBox (noch eine Kopie).log")

The error appears very early in the Windows Startup procedure, it is not possible to enter into repair mode.

Any ideas, anyone?

[uchuujin]

Hello GGos, thank you for confirming!

Same here: After downgrading to Virtualbox 4.2.22 my virtual machine started without problems.

I'll attach two more log files.

[uchuujin]

Starting Windows 7 x64 guest on Virtualbox 4.3.8 -> BSOD upon boot

[uchuujin]

Starting Windows 7 x64 guest on Virtualbox 4.3.8 -> Starts without problems

[bird]

Thanks for the report. We've figured out the problem and a fix will be included in the next VirtualBox release.

In the mean time you can work around the issue by clearing the FFXSR feature bit in CPUID leaf 0x80000001, edx[25]. In your case edx=0xeb93fb7f, so the modified edx value is 0xe993fb7f. This can be communicated to the VMM like this:

VBoxManage setextradata <vmname> VBoxInternal/CPUM/HostCPUID/0x80000001/edx 0xe993fb7f

[amelsens]

I have the same problem with starting Windows 8 and Windows Server 2008 R2 and Windows Server 2012 as guest on Virtualbox 4.3.8. The error is a STOP: 0x000000C4 error of a "Pc must shuting down, press the power off button". Before with Virtualbox 4.3.6 there where no problems, so I have downgrade Virtualbox to 4.3.6 and it's working again. I use Virtualbox on an Dell Inspiron 531 with Windows 8.1 64-bit with 6 GB Ram.

[Frank Mehnert]

Here is a test build containing the fix. Could you confirm the fix?

[uchuujin]

Yes, my virtual machine starts without problems with the test build that you provided. Apologies for the delay in confirming! Thank you very much for fixing this issue so quickly.

[Suncatcher]

The problem is still exists while trying to install Win7 x64. Host OS is Win8.1 x64. Version 4.3.12 r93733 What should I do? Attached log-file and screen.

[SP007]

I have the same issue in Ubuntu. attached is the log. Using 4.3.18 r96516

[Frank Mehnert]

SP007, which exact version of Windows are you trying to run/install? Is that really Windows 8 or is that Windows 8.1?

[SP007]

Update: Windows 8.1.. the install didnt work in Ubuntu. So I rebooted (on the same host) into Win 7, used setextradata command and the install worked. Now back in Ubuntu, I still cannot boot this VM. I get the same error 0x000000c4.

[Frank Mehnert]

You used the wrong guest OS type: Please use "Windows 8.1 (64-bit)", not "Windows 8 (64-bit)". That should fix your problem.

[SP007]

Thank you!! that worked. One of those days...