Tian, Kevin
2009-Feb-05 10:16 UTC
[Xen-devel] [PATCH] solve spinlock bug in s3 cpufreq path
solve spinlock bug in s3 cpufreq path.
Signed-off-by Kevin Tian <kevin.tian@intel.com>
diff -r ae18e0ffa801 xen/arch/x86/smpboot.c
--- a/xen/arch/x86/smpboot.c Wed Feb 04 20:03:08 2009 -0500
+++ b/xen/arch/x86/smpboot.c Wed Feb 04 22:41:20 2009 -0500
@@ -1256,8 +1256,6 @@
mdelay(1);
local_irq_disable();
- cpufreq_del_cpu(cpu);
-
time_suspend();
cpu_mcheck_disable();
@@ -1320,6 +1318,8 @@
}
printk("Prepare to bring CPU%d down...\n", cpu);
+
+ cpufreq_del_cpu(cpu);
err = stop_machine_run(take_cpu_down, NULL, cpu);
if (err < 0)
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