[Bug 283215] PCI passthru of wifi card QCNFA765 on AMD Ryzen host results in host freeze or crash

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 15 Dec 2025 05:00:36 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283215

--- Comment #2 from Quentin Thébault <quentin.thebault@defenso.fr> ---
New test with OpenBSD 7.6 guest on 15.0-RELEASE bhyve host.

No crash. The device is found and the driver (qwx) loads during boot. The
interface is created but cannot be brought up.

The following comes up in `dmesg` / when doing `ifconfig qwx0 up`.

```
qwx0: failed to receive control response completion, polling...
qwx0: Service connect timeout
qwx0: failed to connect to HTT: 35
qwx0: failed to start core: 35
qwx0: fatal firmware error
qwx0: fatal firmware error
```

Note: I confirm the OpenBSD qwx driver does work with that hardware when booted
baremetal.

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