diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index eb5279d..3fff3c6 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -415,6 +415,7 @@
 void __devinit setup_local_APIC(void)
 {
 	unsigned long oldvalue, value, ver, maxlvt;
+	int i, j;
 
 	/* Pound the ESR really hard over the head with a big hammer - mbligh */
 	if (esr_disable) {
@@ -452,6 +453,25 @@
 	apic_write_around(APIC_TASKPRI, value);
 
 	/*
+	 * After a crash, we no longer service the interrupts and a pending
+	 * interrupt from previous kernel might still have ISR bit set.
+	 *
+	 * Most probably by now CPU has serviced that pending interrupt and
+	 * it might not have done the ack_APIC_irq() because it thought,
+	 * interrupt came from i8259 as ExtInt. LAPIC did not get EOI so it
+	 * does not clear the ISR bit and cpu thinks it has already serivced
+	 * the interrupt. Hence a vector might get locked. It was noticed
+	 * for timer irq (vector 0x31). Issue an extra EOI to clear ISR.
+	 */
+	for (i = APIC_ISR_NR - 1; i >= 0; i--) {
+		value = apic_read(APIC_ISR + i*0x10);
+		for (j = 31; j >= 0; j--) {
+			if (value & (1<<j))
+				ack_APIC_irq();
+		}
+	}
+
+	/*
 	 * Now that we are all set up, enable the APIC
 	 */
 	value = apic_read(APIC_SPIV);
diff --git a/include/asm-i386/apicdef.h b/include/asm-i386/apicdef.h
index 03185ce..5e4a35a 100644
--- a/include/asm-i386/apicdef.h
+++ b/include/asm-i386/apicdef.h
@@ -37,6 +37,7 @@
 #define			APIC_SPIV_FOCUS_DISABLED	(1<<9)
 #define			APIC_SPIV_APIC_ENABLED		(1<<8)
 #define		APIC_ISR	0x100
+#define         APIC_ISR_NR     0x8     /* Number of 32 bit ISR registers. */
 #define		APIC_TMR	0x180
 #define 	APIC_IRR	0x200
 #define 	APIC_ESR	0x280