[libvirt-users] sr-iov on Intel 82576 and rhel 7 - would not work
hi everybody
a windows kvm guest would not start, process gets killed with:
Out of memory: Kill process 21984 (qemu-kvm) score 44 or
sacrifice child
I really don't know where/what I might be missing, config
seems fine, everything looks ok - I only am not sure, do I
need to first stub a SR-IOV device like regular passthrough?
I'm trying sr-iov, having one NIC left to the host and the
second give to a pool.
Then I have
in a guest:
<interface type='network'>
<mac address='52:54:00:99:df:43'/>
<source network='passthrough-pool'/>
<model type='rtl8139'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x07' function='0x0'/>
</interface>
and the net:
<network>
<name>passthrough-pool</name>
<uuid>dd5b4aa3-7c46-4874-a17f-6c0582738bd5</uuid>
<forward mode='hostdev' managed='yes'>
<pf dev='enp2s0f1'/>
</forward>
</network>
----
02:00.0 Ethernet controller: Intel Corporation 82576 Gigabit
Network Connection (rev 01)
Subsystem: Super Micro Computer Inc Device 10c9
Flags: bus master, fast devsel, latency 0, IRQ 40
Memory at dfce0000 (32-bit, non-prefetchable) [size=128K]
Memory at dfcc0000 (32-bit, non-prefetchable) [size=128K]
I/O ports at a800 [size=32]
Memory at dfc9c000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at dfca0000 [disabled] [size=128K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [70] MSI-X: Enable+ Count=10 Masked-
Capabilities: [a0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number
00-25-90-ff-ff-72-bb-e2
Capabilities: [150] Alternative Routing-ID
Interpretation (ARI)
Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
Kernel driver in use: igb
02:00.1 Ethernet controller: Intel Corporation 82576 Gigabit
Network Connection (rev 01)
Subsystem: Super Micro Computer Inc Device 10c9
Flags: bus master, fast devsel, latency 0, IRQ 41
Memory at dfc20000 (32-bit, non-prefetchable) [size=128K]
Memory at dfc00000 (32-bit, non-prefetchable) [size=128K]
I/O ports at a400 [size=32]
Memory at dfbdc000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at dfbe0000 [disabled] [size=128K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [70] MSI-X: Enable+ Count=10 Masked-
Capabilities: [a0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number
00-25-90-ff-ff-72-bb-e2
Capabilities: [150] Alternative Routing-ID
Interpretation (ARI)
Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
Kernel driver in use: igb