[Xen-bugs] [Bug 1740] New: Dom0 crash on poweroff

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1740

           Summary: Dom0 crash on poweroff
           Product: Xen
           Version: unstable
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: yang.z.zhang@xxxxxxxxx


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


Bug detailed description:
--------------------------
Fails to poweroff machine on Core2, i7 and SNB. Dom0 crashes when BSP unlocks a
spinlock and is trying to kick APs who are waiting on the spinlock.
Dummy_handler() is called as the wakeup IPI handler, which should never happen.
Looks like something wrong on Xen IPI event channel.

Reproduce steps:
----------------
1. Install Xen r22861.
2. Poweroff machine.
3.

Current result:
----------------
Dom0 crashes.

Expected result:
----------------
Machine poweroff.

Basic root-causing log:
----------------------


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