Re: [Qemu-devel] [PATCH] Remove a detached device from qemu_device_opts.

[William Dauchy]

Hi Minoru,

On Tue, Feb 15, 2011 at 3:32 AM, Minoru Usui <address@hidden> wrote:
> I can reproduce, too.
> But strangely, it don't occur in case of loading acpiphp driver
> to the guest VM on below environment.
>
>  Host : RHEL6.0
>  Guest: RHEL5.5
>
> Unfortunately, I'm not familiar with qemu-kvm.
> I investigated below questions about this problem, but I couldn't resolve 
> them.
>
>  - How to call qdev_free() asynchronously. (How should we fix this problem)
>  - Why it don't occur with acpiphp driver
>
> If anyone knows answer of above questions or its clue, please let me know.

If fact this is not a bug.
`qdev_free` is called when the acpi detach succeed in `pciej_write`.
The virtual machine has to correctly support acpi signals.
Please read the explanation from Markus Armbruster on
http://lists.nongnu.org/archive/html/qemu-devel/2011-02/msg02637.html

Regards,

-- 
William