source: trunk/packages/xen-3.1/xen-3.1/patches/linux-2.6.18/i386-mach-io-check-nmi.patch @ 34

arch/i386/kernel/traps.c

@@ -642 +642 @@
 
 static void io_check_error(unsigned char reason, struct pt_regs * regs)
 {
-        unsigned long i;
-
         printk(KERN_EMERG "NMI: IOCK error (debug interrupt?)\n");
         show_registers(regs);
 
         /* Re-enable the IOCK line, wait for a few seconds */
-        reason = (reason & 0xf) | 8;
-        outb(reason, 0x61);
-        i = 2000;
-        while (--i) udelay(1000);
-        reason &= ~8;
-        outb(reason, 0x61);
+        clear_io_check_error(reason);
 }
 
 static void unknown_nmi_error(unsigned char reason, struct pt_regs * regs)

include/asm-i386/mach-default/mach_traps.h

@@ -15 +15 @@
         outb(reason, 0x61);
 }
 
+static inline void clear_io_check_error(unsigned char reason)
+{
+        unsigned long i;
+
+        reason = (reason & 0xf) | 8;
+        outb(reason, 0x61);
+        i = 2000;
+        while (--i) udelay(1000);
+        reason &= ~8;
+        outb(reason, 0x61);
+}
+
 static inline unsigned char get_nmi_reason(void)
 {
         return inb(0x61);