[Bug 1417937] Re: qemu appears to be built without CONFIG_NUMA defined

[Serge Hallyn]

** Description changed:

+ ===============================================================
+ SRU Justification
+ 1. Impact: openstack cannot use numactl to pin kvm to cpus
+ 2. Test case: ldd /usr/bin/qemu-system-x86* | grep numa
+ 3. Regression potential: this causes qemu to be build against libnuma.  It should only enable users who wish to use numa to do so, though of course new code will be enabled so unepxected regressions are possible.
+ ===============================================================
+ 
  When running
  
  qemu-system-x86_64 -object memory-backend-file,prealloc=yes,mem-
  path=/dev/hugepages/libvirt/qemu,size=4096M,id=ram-node0,host-
  nodes=0,policy=bind
  
  I got the following error:   "NUMA node binding are not supported by
  this QEMU"
  
  Looking at the qemu code, it appears that this means that the package
  was built without CONFIG_QEMU being defined.  The "host-
  nodes=0,policy=bind" functionality is in use in OpenStack, and so it
  would be problematic if it is not supported in Ubuntu.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: qemu-system-x86 2.1+dfsg-4ubuntu6.4
  ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
  Uname: Linux 3.16.0-30-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.1
  Architecture: amd64
  Date: Wed Feb  4 09:04:26 2015
  KvmCmdLine: COMMAND         STAT  EUID  RUID   PID  PPID %CPU COMMAND
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-30-generic root=UUID=dc5b516f-b818-4286-963e-0a0ad3651fb9 ro splash quiet
  SourcePackage: qemu
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: 1.7.5-20140531_083030-gandalf
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.1
  dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.1
  dmi.sys.vendor: QEMU

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https://bugs.launchpad.net/bugs/1417937

Title:
  qemu appears to be built without CONFIG_NUMA defined

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