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authorYinghai Lu <yhlu.kernel@gmail.com>2008-08-19 20:50:32 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-16 16:52:53 +0200
commit7a959cff725872ce9c3a534f10724d7bb2cb3c4a (patch)
tree8624645b19e3f4404ba7ca071dd52d72f870aff6
parent497c9a195db918d3f035e8cb3021e5d4d035516e (diff)
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>
-rw-r--r--arch/x86/kernel/io_apic_32.c8
-rw-r--r--arch/x86/kernel/io_apic_64.c2
-rw-r--r--arch/x86/kernel/irq_32.c4
3 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index ea33d3c7497..3001924bdd3 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -1114,8 +1114,12 @@ next:
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;
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index b0d4abc55a1..30d2e381131 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1394,6 +1394,8 @@ __apicdebuginit(void) print_IO_APIC(void)
printk(KERN_DEBUG "IO APIC #%d......\n", mp_ioapics[apic].mp_apicid);
printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw);
printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID);
+ printk(KERN_DEBUG "....... : Delivery Type: %X\n", reg_00.bits.delivery_type);
+ printk(KERN_DEBUG "....... : LTS : %X\n", reg_00.bits.LTS);
printk(KERN_DEBUG ".... register #01: %08X\n", *(int *)&reg_01);
printk(KERN_DEBUG "....... : max redirection entries: %04X\n", reg_01.bits.entries);
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index b51ffdcfa31..cc929f2f84f 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -237,8 +237,8 @@ unsigned int do_IRQ(struct pt_regs *regs)
desc = irq_to_desc(irq);
if (unlikely(!desc)) {
- printk(KERN_EMERG "%s: cannot handle IRQ %d vector %#x\n",
- __func__, irq, vector);
+ printk(KERN_EMERG "%s: cannot handle IRQ %d vector %#x cpu %d\n",
+ __func__, irq, vector, smp_processor_id());
BUG();
}