port-i386/57137: keyboard unusable under load in QEMU

[nia%pkgsrc.org@localhost]

>Number:         57137
>Category:       port-i386
>Synopsis:       keyboard unusable under load in QEMU
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 24 15:10:00 +0000 2022
>Originator:     nia
>Release:        NetBSD 9.3
>Organization:
The NetBSD Foundation
>Environment:
>Description:

>How-To-Repeat:
qemu-system-i386 \
        -accel nvmm \
        -smp cpus=1 -m 512m \
        -display sdl,gl=on \
        -vga vmware \
        -netdev user,id=vioif0 \
        -device virtio-net-pci,netdev=vioif0 \
        -cdrom NetBSD-9.3_STABLE-i386.iso \
        -hda netbsd9-i386.qcow2

1. Open tmux
2. ftp https://cdn.netbsd.org/pub/pkgsrc/current/pkgsrc.tar.gz
3. tar xf pkgsrc.tar.gz
4. Open another window in tmux
5. Attempt to type "man" and it comes out as mmmmmmmmmmmmmmmmmmmmmmmaaaaaaaaaaaaaaannnnnnnnnnnnnnnnn
>Fix: