x86: put trigger in to detect mismatched apic versions.
Fire off one message if two apic's discovered with different
apic versions.
Signed-off-by: Mike Travis <travis@sgi.com>
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 0f830e4..db09986 100644
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -1833,6 +1833,11 @@
num_processors++;
cpu = cpumask_next_zero(-1, cpu_present_mask);
+ if (version != apic_version[boot_cpu_physical_apicid])
+ WARN_ONCE(1,
+ "ACPI: apic version mismatch, bootcpu: %x cpu %d: %x\n",
+ apic_version[boot_cpu_physical_apicid], cpu, version);
+
physid_set(apicid, phys_cpu_present_map);
if (apicid == boot_cpu_physical_apicid) {
/*