Re: pci_passthru: unmap_pptdev_mmio failed: No such file or directory

On Fri, 22 May 2026, Bjoern A. Zeeb wrote:

> On Fri, 22 May 2026, Mark Johnston wrote:
>
>>> pci.0.10.0.device=virtio-net
>>> pci.0.10.0.backend=tap3
>>> 
>>> Funny enough not even the network interface is available to netboot upon 
>>> start.
>>> 
>>> I'll keep digging but if someone has a clue to save me some time that 
>>> would be appreciated.
>> 
>> As the immediate problem is fixed by commit b13335331092 but the problem
>> is apparently still there: is this a regression?  Can you at least
>> approximate the revision you upgraded from?
>
> I couldn't spot anything looking through the logs;  I assume the last 
> installation
> was no further back than Nov/Dec or worst around EuroBSDCon time but possibly 
> also
> from Feb or Mar.  Problem is that I also used to netboot the host for a while 
> but
> the NFS export has been updated too often in the meantime.
>
>
> Given there was nothing obvious with bhyve I just took a BHYVE_UEFI.fd from 
> an old
> (yet untouched) installation and just pointing to that makes things work 
> again
> (well it tries to PXE now); no idea beyond yet as I used a simple dummy 
> command
> to test.  Ok, booted the real thing and both PXE and passthru work.
>
> The machine I took it from says it once got edk2-bhyve-g202308_5 installed 
> and
> checksums are still fine.
>
> I assume this may be a ports issue then, or some interface changed and we are
> not properly populating things the new way?

I filed https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295548 for this.

/bz

-- 
Bjoern A. Zeeb                                                     r15:7