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Message-Id: <1218766832-20476-2-git-send-email-yhlu.kernel@gmail.com>
Date: Thu, 14 Aug 2008 19:20:26 -0700
From: Yinghai Lu <yhlu.kernel@...il.com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Yinghai Lu <yhlu.kernel@...il.com>
Subject: [PATCH 1/7] x86: some debug info for 32bit sparse_irq
so could figure out who get interrupt, but vector_irq is not initialized.
Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
---
arch/x86/kernel/io_apic_32.c | 8 ++++++--
arch/x86/kernel/io_apic_64.c | 2 ++
arch/x86/kernel/irq_32.c | 4 ++--
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 9e111d6..429889d 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -1120,8 +1120,12 @@ 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 a11515f..4d1b02d 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1392,6 +1392,8 @@ __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 *)®_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 63b4f6c..30b58b3 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_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();
}
--
1.5.4.5
--
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