Re: Run VM with 16G or more?

On 2024-01-02 19:16, Kirill A. Korinsky wrote:
>> On 2. Jan 2024, at 18:41, Dave Voutila <dv@sisu.io> wrote:
>> "Kirill A. Korinsky" <kirill@korins.ky> writes:
>
>>> vmctl -v start... doesn't help a bit
>>
>> How much physicaly memory does the host machine have? We currently
>> don't
>> allow oversubscribing memory with vmm/vmd. If the host only has 16GB
>> that could be the cause.
>
> hw.physmem=137257779200
> hw.usermem=133537726464
>
> and machine is used only for run VMs.
>
>> If that's not the case, can you run vmd in debug mode and get the log
>> output?
>
> Sure, I run /usr/sbin/vmd -vvvvvvv -d and the error is:
>
> vmd: config_setvm: vm 3 restarted after 9.757221 seconds, limit 0/3
> vmd: config_setvm: can't open tap tap
> vmd: failed to start vm podman
> vmd: vm_stop: vmd config_setvm stopping vm 3
>
> This machine runs 4 more VM and this one (huge) should be 5th.

You need to add more tap interfaces:

# cd /dev
# for i in $(jot XX 4); do sh MAKEDEV tap$i; done

Where XX is the number of taps you want to add.

Mischa