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authorMike Travis <travis@sgi.com>2009-01-16 15:58:13 -0800
committerMike Travis <travis@sgi.com>2009-01-16 15:58:13 -0800
commitcef30b3a84e1c7cbd49987d83c5863c001445842 (patch)
tree340a0e17c1ddb40a3733b02b721772968f8499ea
parent6eb714c63ed5bd663627f7dda8c4d5258f3b64ef (diff)
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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>
-rw-r--r--arch/x86/kernel/apic.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 0f830e4f567..db0998641c5 100644
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -1833,6 +1833,11 @@ void __cpuinit generic_processor_info(int apicid, int version)
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) {
/*