| 2021-01-22 20:00:50 |
Eugenio Pérez |
bug |
|
|
added bug |
| 2021-01-22 20:02:04 |
Eugenio Pérez |
description |
From commit ("2d24a646 device-core: use RCU for
list of children of a bus") an assertion is hit when
removing a device, since mr->listeners are not properly
removed. To reproduce:
/home/qemu/build/x86_64-softmmu/qemu-system-x86_64 -qmp tcp:0:4444,server,nowait ... \
-netdev tap,id=hostnet0,vhostforce=on,vhost=on \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:14:18:cc,bus=pci.1,addr=0x0,iommu_platform=on,ats=on
In QMP:
{'execute': 'qmp_capabilities'}
{"execute": "device_del", "arguments": {"id": "net0"} }
And crash:
../softmmu/memory.c:2818: do_address_space_destroy: Assertion `QTAILQ_EMPTY(&as->listeners)' failed. |
From commit ("2d24a646 device-core: use RCU for
list of children of a bus") an assertion is hit when
removing a device, since as->listeners are not properly
removed. To reproduce:
/home/qemu/build/x86_64-softmmu/qemu-system-x86_64 -qmp tcp:0:4444,server,nowait ... \
-netdev tap,id=hostnet0,vhostforce=on,vhost=on \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:14:18:cc,bus=pci.1,addr=0x0,iommu_platform=on,ats=on
In QMP:
{'execute': 'qmp_capabilities'}
{"execute": "device_del", "arguments": {"id": "net0"} }
And crash:
../softmmu/memory.c:2818: do_address_space_destroy: Assertion `QTAILQ_EMPTY(&as->listeners)' failed. |
|
| 2021-01-22 20:04:55 |
Eugenio Pérez |
description |
From commit ("2d24a646 device-core: use RCU for
list of children of a bus") an assertion is hit when
removing a device, since as->listeners are not properly
removed. To reproduce:
/home/qemu/build/x86_64-softmmu/qemu-system-x86_64 -qmp tcp:0:4444,server,nowait ... \
-netdev tap,id=hostnet0,vhostforce=on,vhost=on \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:14:18:cc,bus=pci.1,addr=0x0,iommu_platform=on,ats=on
In QMP:
{'execute': 'qmp_capabilities'}
{"execute": "device_del", "arguments": {"id": "net0"} }
And crash:
../softmmu/memory.c:2818: do_address_space_destroy: Assertion `QTAILQ_EMPTY(&as->listeners)' failed. |
From commit ("2d24a646 device-core: use RCU for
list of children of a bus") an assertion is hit when
removing a iommu aware virtio device, since as->listeners
are not properly removed. To reproduce:
/home/qemu/build/x86_64-softmmu/qemu-system-x86_64 -qmp tcp:0:4444,server,nowait ... \
-netdev tap,id=hostnet0,vhostforce=on,vhost=on \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:14:18:cc,bus=pci.1,addr=0x0,iommu_platform=on,ats=on
In QMP:
{'execute': 'qmp_capabilities'}
{"execute": "device_del", "arguments": {"id": "net0"} }
And crash:
../softmmu/memory.c:2818: do_address_space_destroy: Assertion `QTAILQ_EMPTY(&as->listeners)' failed. |
|
| 2021-01-22 20:05:00 |
Eugenio Pérez |
summary |
Assertion hit on hot-unplugging iommu enabled device |
Assertion hit on hot-unplugging virtio iommu enabled device |
|
| 2021-04-30 09:02:16 |
Thomas Huth |
qemu: status |
New |
Fix Released |
|
