kern/54542: viomb: dmesg broken

[est%ceres.ne.jp@localhost]

>Number:         54542
>Category:       kern
>Synopsis:       viomb: dmesg broken
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Sep 12 02:30:00 +0000 2019
>Originator:     Est Suzumenomiya
>Release:        8.0 or later
>Organization:
>Environment:
NetBSD tokyo.ceres.ne.jp 8.1_STABLE NetBSD 8.1_STABLE (GENERIC) #0: Fri Aug 30 18:34:14 JST 2019 
 est%tokyo.ceres.ne.jp@localhost:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
>Description:
Some lines in dmesg about viomb are a bit broken such as "virtio4virtio4".

...
virtio4 at pci0 dev 7 function 0
virtio4: Virtio Memory Balloon Device (rev. 0x00)
viomb0 at virtio4virtio4: allocated 8192 byte for virtqueue 0 for inflate, size 128
virtio4: allocated 8192 byte for virtqueue 1 for deflate, size 128
: Features: 0x10000000<INDIRECT_DESC>
virtio4: interrupting at ioapic0 pin 11
...
>How-To-Repeat:
just boot on KVM/qemu
>Fix:
In viomb_attach() in sys/dev/pci/viomb.c, virtio_child_attach_start() shoud be called before virtio_alloc_vq().