bhyve Bhyve VM stuck when passthru enabled

[Lincas]

I had the similar issues with usb passthru, but i my case it start working but randomly crashes the host FreeBSD machine during write access to the usb device. Nec USB controllers had most issues. After then I have decide to move towards qemu (qemu9 has some memory issues, so use qemu8). A bit slow, but acceptable on modern PCs for generic work.
Pros:
- redirecting even single usb device connected to any port is very easy and cause 0 issues.
- Implementation of VNC server is amazing
- in general way more polished then bhyve
Cons:
- I didn't manage to run hardware virtualization acceleration ( kvm, the port has no maintainer since 2016 afasik )

Hi, try https://github.com/churchers/vm-bhyve/wiki/Running-Windows setting topology maybe it will help you or you can go with windows 10 it should work fine

 

[DaLynX]

Presumably something along the lines of locking issues: https://reviews.freebsd.org/D37972

Are you sure about this? I tried running with cpu=1 and get the same behaviour (hang at boot).

(Trying to passthrough my wifi card.)

 

[Ikyo75]

Are you sure about this? I tried running with cpu=1 and get the same behaviour (hang at boot).

(Trying to passthrough my wifi card.)

Did you have any luck with finding out how to fix this? I am having the exact same problem with my virtual machine. It worked the first time that I set it up too. I think it has to be something related to restarting the actual VM.

 

[DaLynX]

No. I went with a workaround: I use freerdp3 to connect to my VM and it supports webcam redirection.

 

[Ikyo75]

No. I went with a workaround: I use freerdp3 to connect to my VM and it supports webcam redirection.

I have tried multiple things and still not getting it working. I am looking at other options.

 

[DaLynX]

If you want RDPECAM support for freerdp3 at the moment you have to add the option to the port yourself.

Ah and sorry regarding wifi I use my phone with USB tethering as a router to Wifi networks.

What are you trying to passthrough?

 

[Ikyo75]

My WiFi card…..it worked the first time I set it up then it just fails.

 

[DaLynX]

Ah sorry I gave up on that for the time being.

Are you on CURRENT?

 

[Ikyo75]

Ah sorry I gave up on that for the time being.

Are you on CURRENT?

You mean the current FreeBSD release or the current OPNSense? If you mean OPN, then yes. I believe it is one major revision from the current FreeBSD.

 

[DaLynX]

I can confirm it works with only 1 CPU.

 

[jbo@]

Update: Pass-thru of a PCIe device to a Windows 11 guest with multiple vCPUs works for me with this patch: https://reviews.freebsd.org/D52781

 

[ZioMario]

I've always wondered why I never had this problem without using the patch.

"There's a race condition which is so far only triggered by Windows 11 when using PCI passthrough"

What this means ? What should I do to trigger the bug ? PCI passthrough what means ? What shoud I pass ?

 

[Andrey Lanin]

Update: Pass-thru of a PCIe device to a Windows 11 guest with multiple vCPUs works for me with this patch: https://reviews.freebsd.org/D52781

Yes, it works!