Unexpected error: "AioContext polling is not implemented on Windows"

[Mahdi Golestaneh]

When run it this error happens:
Unexpected error in aio_context_set_poll_params() at /home/stefan/src/qemu/repo.or.cz/qemu/ar7/util/aio-win32.c:413:
C:\Program Files\qemu\qemu-system-x86_64.exe: AioContext polling is not implemented on Windows

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

System:
Windows 10 x64

[Thomas Huth (th-huth)]

Which version of QEMU are you using? And which parameters are you using when you start it?

[Martino (maser111)]

I have that message too with this version:

c:\Tools\QEMU>qemu-system-aarch64.exe -version
QEMU emulator version 2.11.90 (v2.12.0-rc0-11704-g30195e9d53-dirty)

My launch params are:
C:\TOOLS\QEMU\qemu-system-aarch64.exe -M raspi3 -kernel D:\QEMU-img\2017-12-04-pcudev01l.img

My system is Windows 7 64bit
The qemu package downloaded is the 64bit version.

[Stefan Hajnoczi (stefanha)]

Fixed in qemu.git/master and due to be released in QEMU 2.12:

commit 90c558beca0c0ef26db1ed77d1eb8f24a5ea02a1
Author: Peter Xu <email address hidden>
Date: Thu Mar 22 16:56:30 2018 +0800

    iothread: fix breakage on windows