Merge /pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6-omap-h63xx.git] / arch / x86_64 / kernel / irq.c

diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index e46c55856d40ae6fb85daf785ca438dccba1b042..3eaceac3248140ae85d6643dae9f61cb3a01a8a0 100644 (file)
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -18,6 +18,7 @@
 #include <asm/uaccess.h>
 #include <asm/io_apic.h>
 #include <asm/idle.h>
+#include <asm/smp.h>
 
 atomic_t irq_err_count;
 
@@ -31,7 +32,7 @@ atomic_t irq_err_count;
  */
 static inline void stack_overflow_check(struct pt_regs *regs)
 {
-       u64 curbase = (u64) current->thread_info;
+       u64 curbase = (u64)task_stack_page(current);
        static unsigned long warned = -60*HZ;
 
        if (regs->rsp >= curbase && regs->rsp <= curbase + THREAD_SIZE &&
@@ -120,9 +121,14 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
 
        if (likely(irq < NR_IRQS))
                generic_handle_irq(irq);
-       else
-               printk(KERN_EMERG "%s: %d.%d No irq handler for vector\n",
-                       __func__, smp_processor_id(), vector);
+       else {
+               if (!disable_apic)
+                       ack_APIC_irq();
+
+               if (printk_ratelimit())
+                       printk(KERN_EMERG "%s: %d.%d No irq handler for vector\n",
+                               __func__, smp_processor_id(), vector);
+       }
 
        irq_exit();