On Tuesday, December 26, 2017 at 10:30:45 AM UTC-5, Kushal Das wrote:
> On Tue, Dec 26, 2017 at 8:18 PM, cooloutac wrote:
> >
> > wonder if your system runs low on ram?  Could also try using system without 
> > iommu and see if it still happens.
> >
> I have 32GB here on a T470. I hope that is okay :)
> Kushal
> -- 
> Staff, Freedom of the Press Foundation
> CPython Core Developer
> Director, Python Software Foundation
> https://kushaldas.in

I can recreate this error message consistently while running the latest R4 rc3.

Inside of sys-net, just shut down the vm from the inside (e.g. sudo reboot)

Afterwards sys-net fails to start:

$ qvm-start sys-net
Start failed: invalid argument: network device with mac XX:XX:XX:XX:XX:XX 
already exists

To get back in a good state without rebooting the entire machine, I have to 
shut down (or kill) all dependent vms (AppVMs talking to my firewall-vm and my 
firewall vm).  Then I can start sys-net again, followed by my firewall vm, 
followed by my regular app vms.

I've managed to trigger this on two Lenovo laptops and one Dell laptop so far, 
all of which are running R4rc3.

I'm pretty new to QubesOS and haven't figured out how to dig through the 
innards well enough yet to find anything useful.

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