intel_idle: open broadcast clock event
commit2a2d31c8dc6f1ebcf5eab1d93a0cb0fb4ed57c7c
authorShaohua Li <shaohua.li@intel.com>
Mon, 10 Jan 2011 01:38:12 +0000 (10 09:38 +0800)
committerLen Brown <len.brown@intel.com>
Wed, 12 Jan 2011 17:47:34 +0000 (12 12:47 -0500)
tree24a83ac74e876bac402a99262ac5ac89144810b3
parent5392083748a340f68052c0b83a7ce28b10324972
intel_idle: open broadcast clock event

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>
cc: stable@kernel.org
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/idle/intel_idle.c