diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index f43a78bde670..3a842b3773b3 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -282,20 +282,35 @@ static int fake_panic;
 static atomic_t mce_fake_panicked;
 
 /* Panic in progress. Enable interrupts and wait for final IPI */
-static void wait_for_panic(void)
+static void wait_for_panic(struct pt_regs *regs)
 {
 	long timeout = PANIC_TIMEOUT*USEC_PER_SEC;
 
 	preempt_disable();
 	local_irq_enable();
-	while (timeout-- > 0)
+	while (timeout-- > 0) {
+		/*
+		 * We are in an NMI waiting to be stopped by the
+		 * handing processor.  For kdump handling, we need to
+		 * be monitoring crash_ipi_issued since that is what
+		 * is used for an NMI stop used by kdump.  But we also
+		 * need to have interrupts enabled some so that
+		 * RESET_VECTOR will interrupt us on a normal
+		 * shutdown.
+		 */
+		local_irq_disable();
+		run_crash_ipi_callback(regs);
+		local_irq_enable();
+
 		udelay(1);
+	}
 	if (panic_timeout == 0)
 		panic_timeout = mca_cfg.panic_timeout;
 	panic("Panicing machine check CPU died");
 }
 
-static void mce_panic(const char *msg, struct mce *final, char *exp)
+static void mce_panic(const char *msg, struct mce *final, char *exp,
+		      struct pt_regs *regs)
 {
 	int apei_err = 0;
 	struct llist_node *pending;
@@ -306,7 +321,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 		 * Make sure only one CPU runs in machine check panic
 		 */
 		if (atomic_inc_return(&mce_panicked) > 1)
-			wait_for_panic();
+			wait_for_panic(regs);
 		barrier();
 
 		bust_spinlocks(1);
@@ -817,7 +832,7 @@ static atomic_t mce_callin;
 /*
  * Check if a timeout waiting for other CPUs happened.
  */
-static int mce_timed_out(u64 *t, const char *msg)
+static int mce_timed_out(u64 *t, const char *msg, struct pt_regs *regs)
 {
 	/*
 	 * The others already did panic for some reason.
@@ -827,12 +842,12 @@ static int mce_timed_out(u64 *t, const char *msg)
 	 */
 	rmb();
 	if (atomic_read(&mce_panicked))
-		wait_for_panic();
+		wait_for_panic(regs);
 	if (!mca_cfg.monarch_timeout)
 		goto out;
 	if ((s64)*t < SPINUNIT) {
 		if (mca_cfg.tolerant <= 1)
-			mce_panic(msg, NULL, NULL);
+			mce_panic(msg, NULL, NULL, regs);
 		cpu_missing = 1;
 		return 1;
 	}
@@ -866,7 +881,7 @@ static int mce_timed_out(u64 *t, const char *msg)
  * All the spin loops have timeouts; when a timeout happens a CPU
  * typically elects itself to be Monarch.
  */
-static void mce_reign(void)
+static void mce_reign(struct pt_regs *regs)
 {
 	int cpu;
 	struct mce *m = NULL;
@@ -896,7 +911,7 @@ static void mce_reign(void)
 	 * other CPUs.
 	 */
 	if (m && global_worst >= MCE_PANIC_SEVERITY && mca_cfg.tolerant < 3)
-		mce_panic("Fatal machine check", m, msg);
+		mce_panic("Fatal machine check", m, msg, regs);
 
 	/*
 	 * For UC somewhere we let the CPU who detects it handle it.
@@ -909,7 +924,8 @@ static void mce_reign(void)
 	 * source or one CPU is hung. Panic.
 	 */
 	if (global_worst <= MCE_KEEP_SEVERITY && mca_cfg.tolerant < 3)
-		mce_panic("Fatal machine check from unknown source", NULL, NULL);
+		mce_panic("Fatal machine check from unknown source", NULL, NULL,
+			  regs);
 
 	/*
 	 * Now clear all the mces_seen so that they don't reappear on
@@ -928,7 +944,7 @@ static atomic_t global_nwo;
  * in the entry order.
  * TBD double check parallel CPU hotunplug
  */
-static int mce_start(int *no_way_out)
+static int mce_start(int *no_way_out, struct pt_regs *regs)
 {
 	int order;
 	int cpus = num_online_cpus();
@@ -949,7 +965,8 @@ static int mce_start(int *no_way_out)
 	 */
 	while (atomic_read(&mce_callin) != cpus) {
 		if (mce_timed_out(&timeout,
-				  "Timeout: Not all CPUs entered broadcast exception handler")) {
+				  "Timeout: Not all CPUs entered broadcast exception handler",
+				  regs)) {
 			atomic_set(&global_nwo, 0);
 			return -1;
 		}
@@ -975,7 +992,8 @@ static int mce_start(int *no_way_out)
 		 */
 		while (atomic_read(&mce_executing) < order) {
 			if (mce_timed_out(&timeout,
-					  "Timeout: Subject CPUs unable to finish machine check processing")) {
+					  "Timeout: Subject CPUs unable to finish machine check processing",
+					  regs)) {
 				atomic_set(&global_nwo, 0);
 				return -1;
 			}
@@ -995,7 +1013,7 @@ static int mce_start(int *no_way_out)
  * Synchronize between CPUs after main scanning loop.
  * This invokes the bulk of the Monarch processing.
  */
-static int mce_end(int order)
+static int mce_end(int order, struct pt_regs *regs)
 {
 	int ret = -1;
 	u64 timeout = (u64)mca_cfg.monarch_timeout * NSEC_PER_USEC;
@@ -1020,12 +1038,13 @@ static int mce_end(int order)
 		 */
 		while (atomic_read(&mce_executing) <= cpus) {
 			if (mce_timed_out(&timeout,
-					  "Timeout: Monarch CPU unable to finish machine check processing"))
+					  "Timeout: Monarch CPU unable to finish machine check processing",
+					  regs))
 				goto reset;
 			ndelay(SPINUNIT);
 		}
 
-		mce_reign();
+		mce_reign(regs);
 		barrier();
 		ret = 0;
 	} else {
@@ -1034,7 +1053,8 @@ static int mce_end(int order)
 		 */
 		while (atomic_read(&mce_executing) != 0) {
 			if (mce_timed_out(&timeout,
-					  "Timeout: Monarch CPU did not finish machine check processing"))
+					  "Timeout: Monarch CPU did not finish machine check processing",
+					  regs))
 				goto reset;
 			ndelay(SPINUNIT);
 		}
@@ -1286,9 +1306,9 @@ noinstr void do_machine_check(struct pt_regs *regs)
 	 */
 	if (lmce) {
 		if (no_way_out)
-			mce_panic("Fatal local machine check", &m, msg);
+			mce_panic("Fatal local machine check", &m, msg, regs);
 	} else {
-		order = mce_start(&no_way_out);
+		order = mce_start(&no_way_out, regs);
 	}
 
 	__mc_scan_banks(&m, final, toclear, valid_banks, no_way_out, &worst);
@@ -1301,7 +1321,7 @@ noinstr void do_machine_check(struct pt_regs *regs)
 	 * When there's any problem use only local no_way_out state.
 	 */
 	if (!lmce) {
-		if (mce_end(order) < 0)
+		if (mce_end(order, regs) < 0)
 			no_way_out = worst >= MCE_PANIC_SEVERITY;
 	} else {
 		/*
@@ -1314,7 +1334,7 @@ noinstr void do_machine_check(struct pt_regs *regs)
 		 */
 		if (worst >= MCE_PANIC_SEVERITY && mca_cfg.tolerant < 3) {
 			mce_severity(&m, cfg->tolerant, &msg, true);
-			mce_panic("Local fatal machine check!", &m, msg);
+			mce_panic("Local fatal machine check!", &m, msg, regs);
 		}
 	}
 
@@ -1325,7 +1345,7 @@ noinstr void do_machine_check(struct pt_regs *regs)
 	if (cfg->tolerant == 3)
 		kill_it = 0;
 	else if (no_way_out)
-		mce_panic("Fatal machine check on current CPU", &m, msg);
+		mce_panic("Fatal machine check on current CPU", &m, msg, regs);
 
 	if (worst > 0)
 		irq_work_queue(&mce_irq_work);
@@ -1361,7 +1381,8 @@ noinstr void do_machine_check(struct pt_regs *regs)
 		 */
 		if (m.kflags & MCE_IN_KERNEL_RECOV) {
 			if (!fixup_exception(regs, X86_TRAP_MC, 0, 0))
-				mce_panic("Failed kernel mode recovery", &m, msg);
+				mce_panic("Failed kernel mode recovery", &m,
+					  msg, regs);
 		}
 	}
 }
