Hi,
i want to start domain with 2 cpus avail, but also have the opportunity
to change on-the-fly the number of cpus to, for example, 4.
in my domain.cfg i have:
vcpus = 2
vcpu_avail = 7
The domain starts with 2 cpus, as expected, but rising the number
does not work. It silently fails. Lowering the number works as expected.
$ xm vcpu-set domain 3
$ xm list
Name ID Mem VCPUs State 
Time(s)
Domain-0 0 7016 8 r----- 
1445.7
domain 53 256 2 -b---- 
 45.8
Did I miss something? Any suggestions?
Dom0 system is Debian/lenny based.
xm info:
host : dom0
release : 2.6.26-2-xen-amd64
version : #1 SMP Wed Jan 13 00:12:41 UTC 2010
machine : x86_64
nr_cpus : 8
nr_nodes : 1
cores_per_socket : 4
threads_per_core : 1
cpu_mhz : 1995
total_memory : 8185
free_memory : 515
node_to_cpu : node0:0-7
xen_major : 3
xen_minor : 2
xen_extra : -1
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset : unavailable
cc_compiler : gcc version 4.3.1 (Debian 4.3.1-2)
cc_compile_by : waldi
cc_compile_domain : debian.org
cc_compile_date : Sat Jun 28 09:32:18 UTC 2008
xend_config_format : 4
Regadrs,
 Pawel
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