currently set to non reproducable, closing for now. Please reopen if
this problem happens again.
** Changed in: nova
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1261256
Title:
Cannot assign 2 same type PCI passthrough devices to 2 instances
separately
Status in OpenStack Compute (Nova):
Invalid
Bug description:
I want configured the PCI pass-through to assign the physical NIC to
instance.
I have two NICs with same type:
04:00.0 Ethernet controller [0200]: Intel Corporation 82599EB 10-Gigabit SFP+
Network Connection [8086:154d] (rev 01)
04:00.1 Ethernet controller [0200]: Intel Corporation 82599EB 10-Gigabit SFP+
Network Connection [8086:154d] (rev 01)
I add below configuration into nova.conf on compute node:
pci_passthrough_whitelist=[{"vendor_id":"8086", "product_id":"154d"}]
and add below configuration into nova.conf on controller node:
pci_alias={"vendor_id":"8086", "product_id":"154d", "name":"a1"}
then create flavor and set the extra spec:
nova flavor-key test_flavor set "pci_passthrough:alias"="a1:1"
After that, I launch the first instance using the test_flavor, it
succeed.
However, I launch the second instance also using the test_flavor, but
it failed.
There is error log from scheduler.log, it said that the device is already in
use.
I found that when launch the second instance, nova still assign the first NIC
which has been already assigned to the first instance to the second instance.
So it failed...
I suppose this maybe a bug of nova, or could be resolved by
configuration. ---Anyway, need your confirmation!
Below is the error log for reference:
2013-12-05 05:21:10.522 6109 ERROR nova.scheduler.filter_scheduler
[req-6abe0403-36fe-4d24-9852-9436fbf75331 c7095324d1fe439e8c9f350a71690388
92a596418bac4d3a901f1956fbed4463] [instance:
8dcb7465-080b-4bb6-bcd6-d228ca17e5fd] Error from last host: lng-compute-1 (node
lng-compute-1): [u'Traceback (most recent call last):\n', u' File
"/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1037, in
_build_instance\n set_access_ip=set_access_ip)\n', u' File
"/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1410, in
_spawn\n LOG.exception(_(\'Instance failed to spawn\'), instance=instance)\n',
u' File "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1407,
in _spawn\n block_device_info)\n', u' File
"/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 2070, in
spawn\n block_device_info, context=context)\n', u' File
"/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 3205, in
_create_domain_and_network\n domain = self.
_create_domain(xml, instance=instance, power_on=power_on)\n', u' File
"/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 3148, in
_create_domain\n domain.XMLDesc(0))\n', u' File
"/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 3143, in
_create_domain\n domain.createWithFlags(launch_flags)\n', u' File
"/usr/lib/python2.6/site-packages/eventlet/tpool.py", line 187, in doit\n
result = proxy_call(self._autowrap, f, *args, **kwargs)\n', u' File
"/usr/lib/python2.6/site-packages/eventlet/tpool.py", line 147, in proxy_call\n
rv = execute(f,*args,**kwargs)\n', u' File
"/usr/lib/python2.6/site-packages/eventlet/tpool.py", line 76, in tworker\n rv
= meth(*args,**kwargs)\n', u' File
"/usr/lib64/python2.6/site-packages/libvirt.py", line 708, in createWithFlags\n
if ret == -1: raise libvirtError (\'virDomainCreateWithFlags() failed\',
dom=self)\n', u'libvirtError: Requested operation is not valid: PCI device
0000:04:00.0 is in use by domain instance-00000010
\n']
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