Re: [Qemu-discuss] e1000 / pc ~ e1000e / q35

[Han Han]

I didn't face the problem in rhel. But I suggest you to provide the dmesg
and modinfo of e1000e in your VM.

On Mon, May 28, 2018 at 9:53 PM, Pascal <address@hidden> wrote:

> the guests are started as follows :
>
> /usr/bin/qemu-system-x86_64 -enable-kvm -m 2048 -machine {q35|pc} -usb -hda
> {arch1|arch2}.img
>
> regards.
>
> 2018-05-28 15:32 GMT+02:00 Pascal <address@hidden>:
>
> > hello,
> >
> > I come back to you with this subject that I opened to bring some
> > clarifications, because my problem remains and also because nobody seems
> > confronted with it.
> >
> > my physical host is an ArchLinux with 4.14.40-1-lts kernel and Qemu
> 2.12.0.
> >
> > in my first virtualisation case, my virtual host - my guest - is an
> > ArchLinux with 4.9.36-1-lts kernel (e1000e ver. 3.2.6-k) : everything
> works
> > normally when I request the assignment of a network address with dhcpcd
> > (after a few seconds, my guest gets the 10.0.2.15 intended address).
> >
> > in my second virtualisation case, my guest is an ArchLinux with
> > 4.14.40-1-lts kernel (e1000e ver. 3.2.6-k) : no carrier is detected and
> > therefore no address is assigned to the enp0s2 network card.
> >
> > this problem does not appear if I add in both cases the parameter
> *"-machine
> > pc"* (which forces the use of the module e1000/ens3 instead of the module
> > e1000e/enp0s2).
> >
> > I think the problem would rather come from the virtualized 4.14.40-1-lts
> > kernel side because I do not meet it on my physical host which also uses
> > the e1000e module...
> >
> > does anyone have an idea or a lead ?
> >
> > regards, lacsaP.
> >
> > 2018-05-11 15:39 GMT+02:00 Pascal <address@hidden>:
> >
> >> hi,
> >>
> >> when I run qemu with machine pc, my virtual network card "runs", but not
> >> when I run it with machine q35.
> >>
> >> in the first case (pc), module e1000 is loaded and dhcpcd on ens3 is ok
> (
> >> 10.0.2.15/24).
> >>
> >> in the second case (q35), module e1000e is loaded and dhcpcd on enp0s2
> is
> >> ko (waiting for carrier/timed out).
> >>
> >> does anyone have a lead ?
> >>
> >> my host is ArchLinux 4.14.40-1-lts and my guest is ArchLinux
> >> 4.14.32-1-lts.
> >>
> >> regards.
> >>
> >
> >
>



-- 
Best regards,
-----------------------------------
Han Han
Quality Engineer
Redhat.

Email: address@hidden
Phone: +861065339333