Win 7 VM that worked without issue now locks up every other time

Discussions about using Windows guests in VirtualBox.
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LastStopBeforeMars
Posts: 5
Joined: 18. Jan 2025, 19:07

Win 7 VM that worked without issue now locks up every other time

Post by LastStopBeforeMars »

I have been using VirtualBox for years.
This Win 7 machine is P2V and had no issues until now.
Now it throws this error and I have to exit out and try again or sometimes a 3rd time before it loads correctly.
Error Window
Error Window
BootError.png (173.18 KiB) Viewed 913 times
Boot Screen
Boot Screen
VBox.png (5.89 KiB) Viewed 913 times
Thanks,
TCC Team
Attachments
VBox.zip
VBox.log in ZIP
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klaus
Oracle Corporation
Posts: 1628
Joined: 10. May 2007, 14:57

Re: Win 7 VM that worked without issue now locks up every other time

Post by klaus »

From the log file your system ran out of memory after about 25 seconds. Which is odd, because the your system initially has about 20GB of free memory and you configured the VM with 5GB. Could it be that you started another memory intensive application at the same time (or other VMs)?
LastStopBeforeMars
Posts: 5
Joined: 18. Jan 2025, 19:07

Re: Win 7 VM that worked without issue now locks up every other time

Post by LastStopBeforeMars »

Thanks for the reply.
The server has 24 GB of RAM and is only using 6 GB before starting the VM.
We installed a database server on the host box and changed the VM to have a base RAM of 4 GB instead of 8 GB.
This did not seem to present a problem but later on we got the error messages.
I changed it back now that you said the error was due to running out of RAM.
It crashed again but I will keep trying it.

Thanks,
TCC Team
WFV
Posts: 97
Joined: 7. Mar 2016, 13:28
Primary OS: Linux other
VBox Version: OSE other
Guest OSses: ArchLinux; Fedora; Ubuntu; Win7pro64; WinXP
Contact:

Re: Win 7 VM that worked without issue now locks up every other time

Post by WFV »

Not sure if same, or similar issue. Windows 7 pro 64 guest fails to boot since upgrade to 7.1.6. Downgrade to 7.4 and boots without issue except for some lingering USB problems unrelated (from different post). Linux host.
LastStopBeforeMars
Posts: 5
Joined: 18. Jan 2025, 19:07

Re: Win 7 VM that worked without issue now locks up every other time

Post by LastStopBeforeMars »

I tried the changes below to address memory issues but they didn't resolve it.
It seems now to be some sort of conflict with a newly added program on the Server 2019 host called “Advantage Database Server”.
When this is running we can't start any VMs but when this is stopped we can start those same VMs.
What is additionally odd is that once the VM is running there is no issue starting this service.

Advantage_Database_Server.png
Advantage_Database_Server.png (44.43 KiB) Viewed 790 times

"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" modifyvm "Win_7_Server" --memory 8192
"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" modifyvm "Win_7_Server" --vram 256

"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setproperty defaultfrontend gui
"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" modifyvm "Win_7_Server" --defaultfrontend gui
"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" startvm "Win_7_Server" --type gui
LastStopBeforeMars
Posts: 5
Joined: 18. Jan 2025, 19:07

Re: Win 7 VM that worked without issue now locks up every other time

Post by LastStopBeforeMars »

Just to confirm, if the VM is launched before “Advantage Database Server”, then there is no issue at all.
The VM starts fine and runs fine and everything is smooth and easy on the server.
If the “Advantage Database Server” is running before launching the VM then if fails with this error but it also slows down the entire server causing things like opening CMD, Firefox or other programs to take 15 - 20 mins and possibly getting stuck at "Not Responding".
Lastly, the only fix after triggering this disaster is rebooting the server and making sure to start the VM before “Advantage Database Server”.
Wondering now if there is a bad RAM chip? Going to replace the RAM soon it hopes of a better working environment.
Thanks,
TCC Team
Boxy
Posts: 30
Joined: 31. Jan 2010, 14:58
Primary OS: MS Windows 7
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: XP, Win7,SUSE,MS-DOS
Location: wild south of germany

Re: Win 7 VM that worked without issue now locks up every other time

Post by Boxy »

If you talk about "SAP Advantage Database Server", it may be worth to look on these SAP knowledge base entries:
https://userapps.support.sap.com/sap/su ... en/2070202
https://userapps.support.sap.com/sap/su ... en/2540749
and
https://community.sap.com/t5/technology ... p/11956747

In my opinion, the database server (as many database servers do ;-)) reserves most of the available memory for its buffers and fix them in memory in the same way as Virtualbox does (could be seen by RAMMAP : driver locked).

Maybe an explanation for the starting order to become important.
LastStopBeforeMars
Posts: 5
Joined: 18. Jan 2025, 19:07

Re: Win 7 VM that worked without issue now locks up every other time

Post by LastStopBeforeMars »

Boxy wrote: 26. Jan 2025, 18:16 In my opinion, the database server (as many database servers do ;-)) reserves most of the available memory for its buffers and fix them in memory in the same way as Virtualbox does (could be seen by RAMMAP : driver locked).
THANKS Boxy! This software is new to me but your explanation seems to fit.
We completed migrating everything from the Windows 7 VM to the 2019 physical so at this point I no longer need to worry about booting the VM again.
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