That's insane ! There is no David working on the project... So, the only explanation, since I use the official Wrapper, is that the error comes from the wrapper wrote by a David somewhere (Boinc Team ?)

So, the only explanation, since I use the official Wrapper, is that the error comes from the wrapper wrote by a David somewhere (Boinc Team ?)

Yeah, I did a google search and it's plenty of errors from different boinc projects that use Virtualbox.

https://www.google.com/search?client=ubuntu&channel=fs&q=c%3A%5Cusers%5Cdavid%5Cdocuments%5Cboinc_git%5Cboinc%5Csamples%5Cvboxwrapper%5Cvbox_mscom_impl&ie=utf-8&oe=utf-8

I did a bit more checking.

It looks to me that because of the reboot the Virtualbox was killed.
After the reboot Boinc wanted to restart Virtualbox but could not find the snapshot.
The Boincmanager shows that the job is running but it is not,
You can check this by looking at the running processes on your system, if you don't find the process "Vboxheadless.exe" the job is dead
I don't know of a way to force a restart there for the only thing left is to abort the job.

Just for all you folks thinking of long running WUs, I've one that's at 12 1/2 days and counting on a 4GHz Skylake/Windows 10 box. At 99.999% now. I'm letting it run, hopefully to completion.
(BTXv2_athome_b3lyp-321gd_long,batch01,000006411,nwchem_long,1587024800)

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Just for all you folks thinking of long running WUs, I've one that's at 12 1/2 days and counting on a 4GHz Skylake/Windows 10 box. At 99.999% now. I'm letting it run, hopefully to completion.
(BTXv2_athome_b3lyp-321gd_long,batch01,000006411,nwchem_long,1587024800)

Have you checked if VBoxHeadless.exe is still running?
Also every half hour there should be a trickle-up message in the Boinc-manager Eventlog.
If not: the job is dead and will never finish.

Looking in the stderr file, I see a trickle up message every 1/2 hr. The VM runs in VirtualBox when it shows a running status. I'm guessing it's still doing what it's supposed to, just a really long WU.

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