From: Shaohua Li <shaohua.li@intel.com>
Date: Mon, 10 Jan 2011 01:38:12 +0000 (+0800)
Subject: intel_idle: open broadcast clock event
X-Git-Tag: v2.6.37.1~123
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f076e96eae1e03f5fd988911c7062dee22e14a6;p=pandora-kernel.git

intel_idle: open broadcast clock event

commit 2a2d31c8dc6f1ebcf5eab1d93a0cb0fb4ed57c7c upstream.

Intel_idle driver uses CLOCK_EVT_NOTIFY_BROADCAST_ENTER
CLOCK_EVT_NOTIFY_BROADCAST_EXIT
for broadcast clock events. The _ENTER/_EXIT doesn't really open broadcast clock
events, please see processor_idle.c for an example. In some situation, this will
cause boot hang, because some CPUs enters idle but local APIC timer stalls.

Reported-and-tested-by: Yan Zheng <zheng.z.yan@intel.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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