Win7 Pro guest, virtualbox crashes with guru meditation

[marc.revenga]

I have Virtualbox 4.3.6 with extension pack same version installed on a Win8.1 64 bits. I have a VM with Win7 32 bits Pro that was running on other versions of virtualbox. I upgraded the version and this VM crashes. All others I have (same win7 pro 32 bits) works fine. I have downgraded but know crashes. I will explain what's going on when I start the VM. I start the guest system. It starts up. I leave the win7 on the log on screen where you have to select the user. I do not do nothing else. On a while (less that 2 minuts) the virtualbox crashes with a guru meditation. I attach the log file if it can be useful to someone who wants to help me.

I have changed some VM configuration (less RAM initialy was 1920MB, with no network, less video memmory, no video acceleration, ...). Finally I copied the config of other VM was running ok. But same problem on that VM. Always crashes, I don't know what to do.

[michaln]

I have Virtualbox 4.3.6 with extension pack same version installed on a Win8.1 64 bits. I have a VM with Win7 32 bits Pro that was running on other versions of virtualbox. I upgraded the version and this VM crashes.

You upgraded the version of what?

All others I have (same win7 pro 32 bits) works fine. I have downgraded but know crashes. I will explain what's going on when I start the VM. I start the guest system. It starts up. I leave the win7 on the log on screen where you have to select the user. I do not do nothing else. On a while (less that 2 minuts) the virtualbox crashes with a guru meditation. I attach the log file if it can be useful to someone who wants to help me.

Obvious question... how is the VM that triggers the guru meditation different from the others that don't?

I have changed some VM configuration (less RAM initialy was 1920MB, with no network, less video memmory, no video acceleration, ...). Finally I copied the config of other VM was running ok. But same problem on that VM. Always crashes, I don't know what to do.

Please open a ticket on the public bugtracker. Attach the log file, preferably as a plain text file. This certainly looks like a bug in VirtualBox, but it's not immediately obvious to me what's going on there.

[marc.revenga]

Yes this machine was running well on 4.3.4, 4.3.2 and older versions. When I upgraded to 4.3.6 fails. If I rollback to older versions of virtualbox now crashes when in the past didn't crashed.

The difference with the other VM I have is the software installed. Same Win7 Pro 32 bits. Of course they have different RAM assigned. This VM has a SAP Trial Server and needs more RAM than the other VM but never more than 50% of available RAM on the host. Other VM has Eclipse and Java EE, other with Dreamweaver and apache, ... At the log attached this VM has the same configuration as one that is running (same RAM). I think the difference is that the failing VM is on a vmdk image as SAS and the running one is on vdi format. That VM was created with VMWare and imported to VirtualBox. I don't know if that can helps.

I have a bugtrack case opened on week ago but no response for now. Ticket #12522.

In some cases the guru meditation error message shows a portion of assembler code. I installed the extension pack on a safety mode of the win7. It seems not to crash on safety mode.

I work with that VM and I will apreciate any help. I really need it to work inmediatelly.