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Re: [Qemu-devel] [PATCH 1/4] Introduce a new hotplug state: Force eject.

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 1/4] Introduce a new hotplug state: Force eject.
Date: Wed, 16 May 2012 13:23:26 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1

Il 16/05/2012 13:15, Anthony PERARD ha scritto:
>> >         qdev_unplug(&(d->qdev), NULL);
>> > +        qdev_free(&(d->qdev));
>> >     }
>> >  }
>> >
>> >
>> > Anthony, can you confirm that this solves the problem for you?
> This work until I try to hotplug a new device to the guest at wish
> point I have this:
> ERROR:/local/home/anthony/work/qemu/qom/object.c:389:object_delete:
> assertion failed: (obj->ref == 0)
> This is because there is still a pending request of the hotunplug in
> the acpi piix4.
> If I call qdev_free without qdev_unplug, I hit the same assert, but
> rigth away. This is way something new.

Because it's missing the object_unparent done by qdev_unplug.  Does
object_unparent+qdev_free work?  (I believe object_unparent should be
done by qdev_free rather than qdev_unplug, but that's something for 1.2).


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