On 05/20/2012 05:57 PM, 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
The whole PCI slot should be removed once. Currently only one func
is cleaned in pci_unplug_device(), if you try to remove a single
func by monitor cmd.
free_qdev() are called for all functions in slot,
but unparent_delete() is only called for one
function.
---
aliguori has a better resolution, better to do it in 1.2
v2: fix warning: too many arguments for format
v3: move object_unparent() to acpi_piix_eject_slot()
Signed-off-by: Amos Kong<kongjian...@gmail.com>
Applied. Thanks.
Regards,
Anthony Liguori
---
hw/acpi_piix4.c | 1 +
hw/pci.c | 1 -
2 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c
index 585da4e..0345490 100644
--- a/hw/acpi_piix4.c
+++ b/hw/acpi_piix4.c
@@ -299,6 +299,7 @@ static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned
slots)
if (pc->no_hotplug) {
slot_free = false;
} else {
+ object_unparent(OBJECT(dev));
qdev_free(qdev);
}
}
diff --git a/hw/pci.c b/hw/pci.c
index b706e69..c1ebdde 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -1527,7 +1527,6 @@ static int pci_unplug_device(DeviceState *qdev)
qerror_report(QERR_DEVICE_NO_HOTPLUG,
object_get_typename(OBJECT(dev)));
return -1;
}
- object_unparent(OBJECT(dev));
return dev->bus->hotplug(dev->bus->hotplug_qdev, dev,
PCI_HOTPLUG_DISABLED);
}
