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

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


yang.z.zhang@xxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED




------- Comment #5 from yang.z.zhang@xxxxxxxxx  2011-02-28 19:29 -------
The fixing patch:
changeset:   22946:6d451b9cbead
user:        Keir Fraser <keir@xxxxxxx>
date:        Thu Feb 24 09:32:41 2011 +0000
files:       xen/arch/x86/acpi/cpu_idle.c
description:
x86: Fix mwait usage when doing cpu offline

When cpu is offlined, it cannot access per cpu variable at all.
This patch avoids using per_cpu variable inside play_dead.

Signed-off-by: Shan Haitao <haitao.shan@xxxxxxxxx>
Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>


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