[Xen-bugs] [Bug 1605] New: [ACPI] C-state is not enabled by Xen on Stoakley

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1605

           Summary: [ACPI] C-state is not enabled by Xen on Stoakley
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jiajun.xu@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32/ia32e
Guest Arch (ia32/ia32e/IA64): 
Guest OS Type (Linux/Windows): Linux
Change Set: 21208
Hardware: Stoakley
Other:
xen-changeset:   21208:dbf0fd95180f

pvops git:
commit a3e7c7b82c09450487a7e7f5f47b165c49474fd4
Merge: f3d5fe8... a47d360...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit b5160622517fb2d16d0836172a2e34633c9d94bf
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Tue Apr 13 12:07:33 2010 +0100

Bug detailed description:
--------------------------
On stoakley, with latest xen, C-state is not enabled on Stoakely even setting
"cpuidle" in grub cmdline explictly. 
On Gulftown-HEDT, there is no such issue.

The output of xenpm:
############
[root@vt-dp6 ~]$ xenpm get-cpuidle-states
Max C-state: C7

cpu id               : 0
total C-states       : 0
idle time(ms)        : 0

cpu id               : 1
total C-states       : 0
idle time(ms)        : 0

cpu id               : 2
total C-states       : 0
idle time(ms)        : 0

cpu id               : 3
total C-states       : 0
idle time(ms)        : 0

cpu id               : 4
total C-states       : 0
idle time(ms)        : 0

cpu id               : 5
total C-states       : 0
idle time(ms)        : 0

cpu id               : 6
total C-states       : 0
idle time(ms)        : 0

cpu id               : 7
total C-states       : 0
idle time(ms)        : 0
############


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