Win10 guest crash reading 0x8 !

Discussions about using Windows guests in VirtualBox.
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_BeepBeep
Posts: 7
Joined: 26. Apr 2019, 15:50

Win10 guest crash reading 0x8 !

Post by _BeepBeep »

Hello,

I quite often encounter the following problem:

All of a sudden the guest machine stops responding: No more mouse movement, keyboard inactive, then Windows Host declares that the application (VM) is no longer responding, in the seconds that follow, the VM crashes due to memory access violation: @ 0x00000000508E8A90 with an attempt to read the address: 0x0000000000000008

Host: Windows 10 prof. Version 20H2, build 19042.867.
Virtual Box: Version 6.1.18r 142142 (Qt5.6.2)
Guest OS: Windows 10 prof version 20H2, build 19042.868 with or without VboxGuestAdditions_6.1.18

What's wrong with my configuration?
Thanks for your help
scottgus1
Site Moderator
Posts: 20965
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows, Linux

Re: Win10 guest crash reading 0x8 !

Post by scottgus1 »

Please right-click the guest in the main Virtualbox window's guest list, choose Show Log.

Search the far left tab's log for this text:

Attempting fall back to NEM

If you find it, Hyper-V is enabled. See HMR3Init: Attempting fall back to NEM (Hyper-V is active).

If you don't find that text, save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.
_BeepBeep
Posts: 7
Joined: 26. Apr 2019, 15:50

Re: Win10 guest crash reading 0x8 !

Post by _BeepBeep »

Good evening Scottgus1,

Thank you for your quick reply. I already knew that Hyper-V and VBox don't mix. I disabled Hyper-V on the host machine by changing the configuration with "bcdedit / set hypervisorlaunchtype off", but not in the guest machine. Should I do this too? I have a feeling that these malfunctions occur shortly after resizing the guest machine window, but I'm not sure.
Attachments
VboxLogs.7z
Log of my VM
(24.17 KiB) Downloaded 14 times
scottgus1
Site Moderator
Posts: 20965
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows, Linux

Re: Win10 guest crash reading 0x8 !

Post by scottgus1 »

_BeepBeep wrote:I disabled Hyper-V on the host machine ... but not in the guest machine. Should I do this too?
No, that won't be needed. Hyper-V probably wouldn't run in the VM.

There are some glitches, though I cannot tell why:
00:00:04.775403 EnableLargePages <integer> = 0x0000000000000001 (1)
00:00:58.821109 PGMR3PhysAllocateLargePage: allocating large pages takes too long (last attempt 168 ms; nr of timeouts 11); DISABLE
There's also lots of these:
TM: Giving up catch-up attempt at a 60 000 106 356 ns lag; new total: 783 809 463 965 ns
and:
Audio: Device configuration of driver 'DSoundAudio' has changed
I wonder if something on the host is interfering. Not Hyper-V this time, apparently. We'll need a forum guru on this one...
_BeepBeep
Posts: 7
Joined: 26. Apr 2019, 15:50

Re: Win10 guest crash reading 0x8 !

Post by _BeepBeep »

The Host machine has several USB connections, some of which can be picked up by the Guest machine. I am using this VM for installing software development tools on STMicroelectronic and Espressif (esp32) MCUs. As I don't need the sound on this VM, I will deactivate this service with the Vbox manager. We will see if this improves the situation.
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