Strange qemu behavior on sparc64

[Connor McLaughlan <cont6pro3%gmail.com@localhost>]

Hi,

i am using netbsd9.0/sparc64.

When i try to run emulators/qemu from pkgsrc-2020Q1 or pkgsrc-2020Q2,
all components do nothing. They are also not visible with high load on
top.

For example i run qemu-img or qemu-system-sparc without any
parameters. It should come back with a message telling me an error or
missing parameters i guess...but nothing happens. The terminals just
sits there and nothing will happen.

ps shows:
root 21589  0.0  0.1 70432 6464 pts/1  I+    8:16PM 0:00.09 qemu-img

The same happens with gdb qemu-img. After "(gdb) run" it does nothing.
I have to press ctrl-c to interrupt it and then i will get:

bash-5.0# gdb qemu-img
GNU gdb (GDB) 8.3
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "sparc64--netbsd".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from qemu-img...
(No debugging symbols found in qemu-img)
(gdb) run
Starting program: /usr/pkg/bin/qemu-img
^C
Program received signal SIGINT, Interrupt.
0x0000000042952cb4 in ___lwp_park60 () from /usr/lib/libc.so.12
(gdb)


So the process is sleeping or parked. The same happens with all qemu components:

(gdb) run
Starting program: /usr/pkg/bin/qemu-system-sparc
^C
Program received signal SIGINT, Interrupt.
0x0000000044352cb4 in ___lwp_park60 () from /usr/lib/libc.so.12
(gdb)


What is going on here? Can anyone reproduce this on sparc64 or has a
clue how to fix it?

Regards,
Connor