> Quite frequently, under Debian-8, when I go to assign a device, it quietly
> appears to work (Qubes Manager shows it assigned), but the device never
> shows up, and the VM's dmesg shows things like this:
A bit more info:
I repeatedly failed to add a device to one VM.
I close another VM, freeing up some memory.
Then adding the device to the first VM works fine.
So it does appear to be a memory allocation problem (as the stack traces
I can start new programs, and do other things in that same VM that
increase its memory usage, so it's not starved (some VM swap is in use).
However, in lower memory conditions, devices won't assign.