On 02/03/2017 10:15 AM, Dario Faggioli wrote:
It turned out to be something similar/related to this:
https://github.com/QubesOS/qubes-issues/issues/1449
I.e., too few (contiguous?) memory to start a VM with PCI devices
passed through to it.
This is a not so new laptop, with 8GB RAM. As I said, some of the time,
even without modifying anything, sys-net and sys-usb just can't get
started. Others, they do.
If I balloon down dom0 before trying to starting them, like this:
xl mem-set 0 1500
everything works. So far, instead of touching swiotlb, I've worked it
around by passing "dom0_mem=1536,max:4096".
With this, system VMs start at boot, and this is enough for me right
now.
Thanks and Regards,
Dario
Hi,
With 8GB RAM in my system also, I don't encounter the sys-net issue
you're experiencing.
Maybe not all RAM is getting recognized at boot. Long ago, I had a
low-RAM problem when I started using tboot (part of AEM) and a
workaround was required. Did you check total_memory from 'xl info'?
Chris
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