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From: Jason Baron <jbaron@redhat.com>
To: Amos Kong <kongjianjun@gmail.com>
Cc: pbonzini@redhat.com, aliguori@us.ibm.com, qemu-devel@nongnu.org,
	mst@redhat.com
Subject: Re: [Qemu-devel] [PATCH v3] pci: call object_unparent() before free_qdev()
Date: Mon, 4 Jun 2012 16:15:56 -0400	[thread overview]
Message-ID: <20120604201556.GA2594@redhat.com> (raw)
In-Reply-To: <1337507865-28504-1-git-send-email-kongjianjun@gmail.com>

On Sun, May 20, 2012 at 05:57:45PM +0800, Amos Kong wrote:
> Start VM with 8 multiple-function block devs, hot-removing
> those block devs by 'device_del ...' would cause qemu abort.
> 
> | (qemu) device_del virti0-0-0
> | (qemu) **
> |ERROR:qom/object.c:389:object_delete: assertion failed: (obj->ref == 0)
> 
> It's a regression introduced by commit 57c9fafe
> 

I found a similar assertion where the parent reference isn't cleared,
doing:

(qemu) device_add pci-bridge

in the monitor. I posted for patches for it under:

Subject: [Qemu-devel] [PATCH 0/2] pci: hotplug bridge fixes

It's still an issue with the current tree.

Thanks,

-Jason

  parent reply	other threads:[~2012-06-04 20:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-11  2:15 [Qemu-devel] [PATCH] qom: fix refcounting in object_property_del_child() Amos Kong
2012-05-11  6:42 ` Paolo Bonzini
2012-05-11 14:52   ` Amos Kong
2012-05-11 14:57   ` [Qemu-devel] [PATCH] pci: unplug all devs of same slot once Amos Kong
2012-05-13  0:40     ` Amos Kong
2012-05-13 10:54     ` Michael S. Tsirkin
2012-05-14  7:55       ` Paolo Bonzini
2012-05-20  9:57     ` [Qemu-devel] [PATCH v3] pci: call object_unparent() before free_qdev() Amos Kong
2012-05-20 10:22       ` Michael S. Tsirkin
2012-06-04 20:15       ` Jason Baron [this message]
2012-06-04 21:52         ` Michael S. Tsirkin
2012-06-07 14:06           ` Jason Baron

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