x86: add debug info for 32bit sparse_irq
so could figure out bugs where we get an interrupt, but vector_irq is
not initialized yet.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index ea33d3c..3001924 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -1114,8 +1114,12 @@
cfg->move_in_progress = 1;
cfg->old_domain = cfg->domain;
}
- for_each_cpu_mask_nr(new_cpu, new_mask)
- per_cpu(vector_irq, new_cpu)[vector] = irq;
+ printk(KERN_DEBUG "assign_irq_vector: irq %d vector %#x cpu ", irq, vector);
+ for_each_cpu_mask_nr(new_cpu, new_mask) {
+ per_cpu(vector_irq, new_cpu)[vector] = irq;
+ printk(KERN_CONT " %d ", new_cpu);
+ }
+ printk(KERN_CONT "\n");
cfg->vector = vector;
cfg->domain = domain;
return 0;