net.link.tap.up_on_open does not exist

[Mario Marietto]

Maybe you are interested to understand what's wrong with qemu and nvmm on
DFLY and also that NVMM under NetBSD is working great.

ok. you can give a look at these videos recorded by me :
https://drive.google.com/drive/folders/17IptbtId_GxBkuLcofNeY8HRSD2FMOOw

and under NetBSD,these are the parameters which work good :

qemu-system-x86_64 --accel nvmm \
        -cpu max -smp cpus=4 -m 8G \
        -boot d \
        -object rng-random,filename=/dev/urandom,id=viornd0 \
        -drive file=/home/marietto/Downloads/vm/jammy.img,if=none,id=disk0 \
        -device virtio-rng-pci,rng=viornd0 \
        -netdev user,id=vioif0 -device virtio-net-pci,netdev=vioif0 \
        -audiodev oss,id=oss,out.dev=/dev/audio,in.dev=/dev/audio \
        -device ac97,audiodev=oss \
        -usb -device usb-mouse,bus=usb-bus.0 \
        -cdrom ubuntu-22.04-desktop-amd64.iso \
        -bios OVMFX64.fd \
        -display sdl,gl=on \

These parameters can boot the ISO image of Ubuntu fast without any
problem,but they don't work on DFLY. Watching my 3 videos you will see
what's broken.

Il giorno dom 17 lug 2022 alle ore 09:17 Aaron LI <aly at aaronly.me> ha
scritto:

> Hi Mario,
>
> Are you using a custom kernel that doesn’t have the tap(4) module builtin?
> Or you should load the tap(4) module upon startup by setting
> “if_tap_load=YES” in /etc/rc.conf
>
> Otherwise, the two sysctls in /etc/sysctl.conf should just work.
>
> > On Jul 16, 2022, at 21:09, Mario Marietto <marietto2008 at gmail.com>
> wrote:
> >
> > 
> > Hello. Good day to everyone.
> >
> > What's the correct syntax to use to add these entries in
> /etc/sysctl.conf ? Both the parameters below aren't accepted :
> >
> > net.link.tap.up_on_open=1
> > net.link.tap.up_on_open does not exist
> >
> > net.link.tap.user_open=1
> > net.link.tap.user_open : does not exist
> >
> > or
> >
> > net.link.tap.up_on_open
> > = invalid syntax
> >
> > net.link.tap.user_open
> > = invalid syntax
> >
> > --
> > Mario.
>


-- 
Mario.
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