The branch main has been updated by ngie:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=5d0488b29dc5b3e8201d04cf7a015dce9e774d5d

commit 5d0488b29dc5b3e8201d04cf7a015dce9e774d5d
Author:     Faraz Vahedi <[email protected]>
AuthorDate: 2026-07-09 20:01:20 +0000
Commit:     Enji Cooper <[email protected]>
CommitDate: 2026-07-15 06:57:40 +0000

    virtio: Report feature masks on negotiation failure
    
    Signed-off-by: Faraz Vahedi <[email protected]>
    Reviewed-by: ngie
    Pull-Request: https://github.com/freebsd/freebsd-src/pull/2319
---
 sys/dev/virtio/pci/virtio_pci_modern.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/dev/virtio/pci/virtio_pci_modern.c 
b/sys/dev/virtio/pci/virtio_pci_modern.c
index bdd9cacd505e..4a4fedeb194d 100644
--- a/sys/dev/virtio/pci/virtio_pci_modern.c
+++ b/sys/dev/virtio/pci/virtio_pci_modern.c
@@ -464,7 +464,10 @@ vtpci_modern_finalize_features(device_t dev)
 
        status = vtpci_modern_get_status(sc);
        if ((status & VIRTIO_CONFIG_S_FEATURES_OK) == 0) {
-               device_printf(dev, "desired features were not accepted\n");
+               device_printf(dev, "desired features were not accepted "
+                   "(host %#jx, written %#jx)\n",
+                   (uintmax_t)sc->vtpci_common.vtpci_host_features,
+                   (uintmax_t)sc->vtpci_common.vtpci_features);
                return (ENOTSUP);
        }
 

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