[Xen-bugs] [Bug 1654] New: cpu online/offine will cause system hang

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1654

           Summary: cpu online/offine will cause system hang
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: HVM
        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: 22019
Hardware: Gulftown-HEDT
Other:
xen-changeset:   22019:5218db847b58
xen-date:        Tue Aug 17 19:32:37 2010 +0100

pvops git:
commit e73f4955a821f850f5b88c32d12a81714523a95f
Merge: e6b9b2c... c6f69a4...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit 466608f3a32e1f9808acdf832a5843af37e5fcec
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Mon Aug 16 13:29:36 2010 +0100

Bug detailed description:
--------------------------
cpu online/offine will cause system hang. Attachment can do cpu hotplug/unplug.
Compile it with gcc and run it (like ./cpu_offline 1 2 3), you will see system
hang.


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