Red Hat Bugzilla – Bug 644646
Cannot create a virtual machine
Last modified: 2011-06-10 14:00:53 EDT
Description of problem:
I'm not able to create a virtual machine on an AMD Opteron 4x12 system. Both GUI and CLI installation methods produce the error message "internal error Process exited while reading console log output: libvir: error : cannot set CPU affinity on process 0: Invalid argument". This happens on both 2.6.33 and 2.6.34 kernels.
Version-Release number of selected component (if applicable): Latest
How reproducible: Always
Steps to Reproduce:
1. Run a command like
virt-install --connect qemu:///system -n CentOS -r 1024 --vcpus=2 -f ~/vm10.qcow2 -s 12 -c ~cheiny/downloads/centos/CentOS-5.5-x86_64-bin-DVD/CentOS-5.5-x86_64-bin-DVD-1of2.iso --vnc --noautoconsole --os-type linux --accelerate --hvm
Actual results: See the error message above.
Expected results: A virtual machine is created.
[root@kolsch ~]# uname -a
Linux kolsch.synaptics.com 22.214.171.124-85.fc13.x86_64 #1 SMP Thu May 6 18:09:49 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
[root@kolsch ~]# head -25 /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 9
model name : AMD Opteron(tm) Processor 6174
stepping : 1
cpu MHz : 2200.329
cache size : 512 KB
physical id : 0
siblings : 12
core id : 0
cpu cores : 12
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid amd_dcm pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt nodeid_msr
bogomips : 4400.64
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
If you use '--cpuset=auto' then it is created and can be run. However I think you then need to change the pinning, since it might not be optimal.
I don't know how to specify this option from the virt-manager GUI.
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