Version 5.1.16 r113841 (Qt5.6.2) Crashes

[Bob Babb]

I just updated my install of VB to Version 5.1.16 r113841 (Qt5.6.2). I have also installed the Guest Additions on my Win 7 Device. Now all of the sudden out of no where VBox just shuts down. Any ideas?

[socratis]

I'm sorry, but you posted in the "OSX guests" talking about "Win7 device". Can you explain what's the situation?

Follow a "start from cold-boot", "observe error", "shutdown" cycle. With the VM shut down completely (not paused or saved), right-click on the VirtualBox Manager and select "Show Log". Save the first "VBox.log" only, ZIP it and attach it to your response (see the "Upload attachment" tab below the reply form).

And when you say "VBox just shuts down", there's no error message? AT ALL?

[Bob Babb]

Well I put it on OSX Guests, cause I'm running an image of Windows on my MAC.
Logs attached. I did get an error message and sent it to Apple. When it happens again I'll post it.
Thanks for your help

[Bob Babb]

Here are the Apple Crash Reports

[socratis]

00:00:01.705708 CpuExecutionCap   <integer> = 0x000000000000002d (45)
00:00:01.842960 Full Name: "Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz"

That's going to make your 2.2 GHz CPU act like a 990 MHz one. I'm not sure that this is what you had in mind.

00:00:01.705718 NumCPUs           <integer> = 0x0000000000000004 (4)
00:00:01.842660 CPUM: Logical host processors: 8 present, 8 max, 8 online, online mask: 00000000000000ff
00:00:01.842663 CPUM: Physical host cores: 4

On the other hand, you have assigned all your CPUs to the VM. The host is going to run low on resources, since VirtualBox cares about physical processors, not logical ones. See: CPU Cores versus threads.

What I would suggest is to assign 2 or a max of 3 CPUs to your VM, and take the execution cap to 100%.

00:00:01.705934 [/Devices/ahci/0/LUN#0/Config/] (level 5)
00:00:01.705938 Path <string> = "/Users/RBabb/VirtualBox VMs/Visual Studio/Windows 7 Enterprise-disk1.vmdk" (cb=74)

Any particular reason why you chose the VMDK format? Also the VM does not have the same name as the disk, which indicates that you imported this VM from somewhere else, didn't create it from scratch? Can you please explain?

00:00:01.706239 [/Devices/piix3ide/0/LUN#1/Config/] (level 5)
00:00:01.706244 Path <string> = "/Applications/VirtualBox.app/Contents/MacOS/VBoxGuestAdditions.iso" (cb=67)

Always eject the VirtualBox GAs CD after you're done installing the GAs, which you have.

00:00:01.706369 MonitorCount     <integer> = 0x0000000000000002 (2)
00:00:01.706371 VRamSize         <integer> = 0x0000000004800000 (75 497 472, 72 MB)
00:00:01.716656 GUI: UIMachineLogicFullscreen::sltHandleNativeFullscreenWillEnter: Machine-window #0 will enter native fullscreen
00:00:01.996047 GUI: 2D video acceleration is disabled

There have been reports with OSX 10.11.x, 10.12.x and multiple monitors. Could you change the monitors down to 1 please? And increase the vRAM to 128 or 256 MB? Also, enable 2D and 3D acceleration. Especially if you go full screen.

00:00:55.592307 VMMDev: GuestHeartBeat: Guest is alive (gone 4 026 163 848 ns)

Ironic that this is the last message before the crash . But the question arises: you were running for almost a minute (at least, the messages are write-cached). What do you think might have happened in the host or in the guest that triggered the crash?

Next stop: Apple logs...

[Bob Babb]

I'm not sure I was doing anything special on the MAC side besides a web browser. As for the PC I was compiling my Visual Studio Project. You are correct as this is a copy of an image I already use. I have made several copies of it. I haven't had any issues until I ran today's update. I have made recommendations based on your message, I appreciate it!!!!

[socratis]

Moving (finally) to "OSX Hosts" from "OSX Guests".

I took a look at your crash logs, and being nothing more than a n00b at this, I wasn't able to find out anything. Are you still getting the crashes after the changes that you implemented?

[Bob Babb]

I haven't had a crash in 2 days so I think it's all good. Thank you for all your help!! Great job

[socratis]

Good! Because I was out of ideas...