virtualbox.org

Thank you, what I wanted to confirm was this, notice the state of that thread is "D" (indicating TASK_UNINTERRUPTIBLE state): 1 D root 2153 2 0 80 0 - 0 - 14:41 ? 00:00:00 [iprt-VBoxTscThr] I've committed a fix to trunk and the fix will be available in the next maintenance release of Virt...

Well I spun on a Debian 8 image and connected my large volume to it, set it up just like the Ubuntu image, and that thing is rock solid. No crashes at all for 18 hours so far, and a constant 100% cpu load the entire time. So something to do with Ubuntu

Bruksee wrote:
EDIT: as a starting point I have enabled a virtual serial console for the problematic virtual machine and got the console going out of it now. The next time it hangs it will be interesting to see if there's anything on the serial console... ?

Nothing on the serial prompt.

Well mine is not fixed. Crashed twice now in the same way. I am running this all headless, without the gui. Is there an concise idiots guide to positioning myself to collect/report something that will meaningfully advance some investigation. Most of what I've found seems to assume a GUI is present. ...

One last tip. If you did not purge the additions that were installed before you installed the official version you may still have an issue. I've had a good look around the system and it's now loading the kernel modules out of /lib/modules/3.19.0-30-generic/misc instead of /lib/modules/3.19.0-30-gen...

OK, now from the host: 01:24:53.551822 VMMDev: Guest Additions information report: Version 5.0.10 r104061 '5.0.10' From the guest: [ 5093.216605] vboxguest: misc device minor 56, IRQ 20, I/O port d020, MMIO at 00000000f0000000 (size 0x400000) [ 5093.216671] vboxguest: Successfully loaded version 5.0...

I Not only are the guest additions out of date it looks like you are using the Ubuntu version of the additions instead of the ones from virtualbox. If so then mixing the official version with the ubuntu fork version of the additions has been known to cause issues. You would be better off removing t...

I am having the same issue. I have a small box which runs a dual core atom processor. It has 2GB of ram. It runs a pair of Openwrt images with 100% reliability. They run a 3.18. kernel. Then, I have a guest which runs Ubuntu 14.04.3 LTS X64. The guest just becomes non responsive (VRDE console & ...