[Xen-bugs] [Bug 1650] New: xm vcpu-set can't work to guest

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1650

           Summary: xm vcpu-set can't work to guest
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Tools
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: yang.z.zhang@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32/ia32e
Guest Arch (ia32/ia32e/IA64): 
Guest OS Type (Linux/Windows):
Change Set: 21952
Hardware: Stoakley/Gulftown-HEDT
Other:
xen-changeset:   21952:f45026ec8db5

pvops git:
commit b29254c40dac94960fd3887275c65c83b71086ea
Merge: cc867b2... 9d85e25...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit 833e7e9a4c95739429dc0c803bbbf2346f9897fd
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Thu Jul 8 17:33:29 2010 +0100

Bug detailed description:
--------------------------
The command "xm vcpu-set <Domain> <vCPUs>" is effective on Domain-0, but it is
ineffective on guest.

[root@vt-nhm2 ~]# xm li
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  3313    12     r-----    156.1
vCPL_MEM_02_1281603502                       2   256     4     -b----     10.1
[root@vt-nhm2 ~]# xm vcpu-list
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
Domain-0                             0     0     7   -b-      46.9 any cpu
Domain-0                             0     1    11   r--      13.2 any cpu
Domain-0                             0     2     8   r--      13.3 any cpu
Domain-0                             0     3     6   -b-      35.9 any cpu
Domain-0                             0     4     3   -b-       9.1 any cpu
Domain-0                             0     5     2   -b-       6.7 any cpu
Domain-0                             0     6    10   -b-       9.9 any cpu
Domain-0                             0     7     4   -b-       6.6 any cpu
Domain-0                             0     8     5   -b-       5.2 any cpu
Domain-0                             0     9     1   -b-       5.0 any cpu
Domain-0                             0    10     9   -b-       3.1 any cpu
Domain-0                             0    11     4   -b-       2.8 any cpu
vCPL_MEM_02_1281603502               2     0     8   r--      10.4 any cpu
vCPL_MEM_02_1281603502               2     1     9   -b-       2.2 any cpu
vCPL_MEM_02_1281603502               2     2     1   -b-       0.9 any cpu
vCPL_MEM_02_1281603502               2     3     5   -b-       1.0 any cpu
[root@vt-nhm2 ~]# xm vcpu-set 0 10
[root@vt-nhm2 ~]# xm vcpu-list
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
Domain-0                             0     0    11   -b-      49.8 any cpu
Domain-0                             0     1     1   r--      13.7 any cpu
Domain-0                             0     2     5   -b-      13.6 any cpu
Domain-0                             0     3     0   -b-      36.2 any cpu
Domain-0                             0     4     4   -b-       9.1 any cpu
Domain-0                             0     5     3   -b-       6.7 any cpu
Domain-0                             0     6    10   -b-       9.9 any cpu
Domain-0                             0     7     2   -b-       6.6 any cpu
Domain-0                             0     8     8   -b-       5.2 any cpu
Domain-0                             0     9     7   -b-       5.5 any cpu
Domain-0                             0    10     -   --p       3.2 any cpu
Domain-0                             0    11     -   --p       2.8 any cpu
vCPL_MEM_02_1281603502               2     0     9   -b-      13.0 any cpu
vCPL_MEM_02_1281603502               2     1     7   -b-       4.2 any cpu
vCPL_MEM_02_1281603502               2     2     6   -b-       2.6 any cpu
vCPL_MEM_02_1281603502               2     3     4   -b-       2.2 any cpu
[root@vt-nhm2 ~]# xm vcpu-set 2 2
[root@vt-nhm2 ~]# xm vcpu-list
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
Domain-0                             0     0     1   -b-      50.7 any cpu
Domain-0                             0     1     7   r--      13.8 any cpu
Domain-0                             0     2     6   -b-      13.7 any cpu
Domain-0                             0     3     0   -b-      36.5 any cpu
Domain-0                             0     4     4   -b-       9.1 any cpu
Domain-0                             0     5    11   -b-       6.7 any cpu
Domain-0                             0     6     8   -b-       9.9 any cpu
Domain-0                             0     7     3   -b-       6.6 any cpu
Domain-0                             0     8     2   -b-       5.2 any cpu
Domain-0                             0     9     5   -b-       5.5 any cpu
Domain-0                             0    10     -   --p       3.2 any cpu
Domain-0                             0    11     -   --p       2.8 any cpu
vCPL_MEM_02_1281603502               2     0     9   -b-      13.8 any cpu
vCPL_MEM_02_1281603502               2     1    11   -b-       4.7 any cpu
vCPL_MEM_02_1281603502               2     2    10   -b-       3.1 any cpu
vCPL_MEM_02_1281603502               2     3    11   -b-       2.6 any cpu
[root@vt-nhm2 ~]#


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