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x86: add debug info for 32bit sparse_irq

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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>
This commit is contained in:
Yinghai Lu 2008-08-19 20:50:32 -07:00 committed by Ingo Molnar
parent 497c9a195d
commit 7a959cff72
3 changed files with 10 additions and 4 deletions
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8
arch/x86/kernel/io_apic_32.c
View File

@ -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;

2
arch/x86/kernel/io_apic_64.c
View File

@ -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);

4
arch/x86/kernel/irq_32.c
View File

@ -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();
}