Re: devctl: Failed to detach pci0:1:0:0: Device busy / devctl: Failed to set pci0:1:0:0 driver to ppt: Device busy

Very interesting behavior. I've added this new line in /etc/rc.conf :
(until some minutes ago I didn't use it because I was using the intel
driver,installed by the package : xf86-video-intel-2.99.917.916_2,1)

kld_list="i915kms acpi_video"

and this line in /boot/loader.conf :

pptdevs="1/0/0 1/0/1 2/0/0 2/0/1 2/0/2 2/0/3 5/0/0"

and boom. pptdevs worked again:

# pciconf -l

ppt0@pci0:1:0:0:        class=0x030000 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1c02 subvendor=0x19da subdevice=0x2438
ppt1@pci0:1:0:1:        class=0x040300 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x10f1 subvendor=0x19da subdevice=0x2438
ppt2@pci0:2:0:0:        class=0x030000 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1e04 subvendor=0x19da subdevice=0x2503
ppt3@pci0:2:0:1:        class=0x040300 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x10f7 subvendor=0x19da subdevice=0x2503
ppt4@pci0:2:0:2:        class=0x0c0330 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1ad6 subvendor=0x19da subdevice=0x2503
ppt5@pci0:2:0:3:        class=0x0c8000 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1ad7 subvendor=0x19da subdevice=0x2503

So,maybe there is some incompatibility between the intel and the pptdevs
driver ? take also in consideration that on xorg.cong I'm still using the
intel driver :

Section "Device"
       Identifier  "Card0"
       Driver      "intel"
       BusID       "PCI:0:2:0"
EndSection.

It's a confusing situation.

Il giorno ven 3 feb 2023 alle ore 14:27 Daniel O'Connor <darius@dons.net.au>
ha scritto:

>
>
> > On 3 Feb 2023, at 23:52, Mario Marietto <marietto2008@gmail.com> wrote:
> > To put the pci addresses under ppt using the loader.conf always worked
> for me. I would like to understand why it does not work anymore for some
> months. Maybe some new feature and some obscure bug has been introduced
> inside the bhyve source code. This is important to understand why I'm not
> able to attach / detach the nVidia driver from the host to the guest os and
> it lets me think that your consideration may be relevant in some way.
>
> It would have been more helpful if you had said up front that it used to
> work for you..
>
> Do you mean it used to work for these nvidia devices or something else,
> or..?
>
> --
> Daniel O'Connor
> "The nice thing about standards is that there
> are so many of them to choose from."
> -- Andrew Tanenbaum
>
>

-- 
Mario.