diff --git a/sys/arch/x86/pci/pci_intr_machdep.c b/sys/arch/x86/pci/pci_intr_machdep.c
index c79044a4126..82dfc007fb4 100644
--- a/sys/arch/x86/pci/pci_intr_machdep.c
+++ b/sys/arch/x86/pci/pci_intr_machdep.c
@@ -225,6 +225,7 @@ pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih, char *buf,
     size_t len)
 {
 	pci_chipset_tag_t ipc;
+	aprint_normal(" %s: %04d : %s\n", __FILE__,__LINE__,__FUNCTION__);
 
 	for (ipc = pc; ipc != NULL; ipc = ipc->pc_super) {
 		if ((ipc->pc_present & PCI_OVERRIDE_INTR_STRING) == 0)
diff --git a/sys/arch/x86/x86/ioapic.c b/sys/arch/x86/x86/ioapic.c
index 35e3db0f183..c71cc85f732 100644
--- a/sys/arch/x86/x86/ioapic.c
+++ b/sys/arch/x86/x86/ioapic.c
@@ -494,6 +494,7 @@ ioapic_reenable(void)
 			apic_set_redir(sc, p, sc->sc_pins[p].ip_vector,
 				    sc->sc_pins[p].ip_cpu);
 	}
+	aprint_normal("%s reenabling done ..\n", device_xname(ioapics->sc_dev));
 
 	ioapic_enable();
 }
diff --git a/sys/external/bsd/drm2/dist/drm/drm_irq.c b/sys/external/bsd/drm2/dist/drm/drm_irq.c
index cf69816a9ec..04c4596ba67 100644
--- a/sys/external/bsd/drm2/dist/drm/drm_irq.c
+++ b/sys/external/bsd/drm2/dist/drm/drm_irq.c
@@ -308,6 +308,7 @@ int drm_irq_install(struct drm_device *dev)
 	int ret;
 	unsigned long sh_flags = 0;
 	const char *irqname;
+aprint_normal("%s:%04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 
 	if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
 		return -EINVAL;
@@ -315,6 +316,7 @@ int drm_irq_install(struct drm_device *dev)
 	if (drm_dev_to_irq(dev) == 0)
 		return -EINVAL;
 
+aprint_normal("%s:%04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 	mutex_lock(&dev->struct_mutex);
 
 	/* Driver must have been initialized */
@@ -323,10 +325,12 @@ int drm_irq_install(struct drm_device *dev)
 		return -EINVAL;
 	}
 
+aprint_normal("%s:%04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 	if (dev->irq_enabled) {
 		mutex_unlock(&dev->struct_mutex);
 		return -EBUSY;
 	}
+aprint_normal("%s:%04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 	dev->irq_enabled = true;
 	mutex_unlock(&dev->struct_mutex);
 
diff --git a/sys/external/bsd/drm2/dist/drm/i915/intel_pm.c b/sys/external/bsd/drm2/dist/drm/i915/intel_pm.c
index 41d89e06ff5..e61e34cdadf 100644
--- a/sys/external/bsd/drm2/dist/drm/i915/intel_pm.c
+++ b/sys/external/bsd/drm2/dist/drm/i915/intel_pm.c
@@ -3271,9 +3271,11 @@ static void valleyview_disable_rps(struct drm_device *dev)
 	gen6_disable_rps_interrupts(dev);
 }
 
+int sequence = 0;
 static void intel_print_rc6_info(struct drm_device *dev, u32 mode)
 {
-	DRM_INFO("Enabling RC6 states: RC6 %s, RC6p %s, RC6pp %s\n",
+	DRM_INFO("seq: %d, .. Enabling RC6 states: RC6 %s, RC6p %s, RC6pp %s\n",
+	sequence++,
 		 (mode & GEN6_RC_CTL_RC6_ENABLE) ? "on" : "off",
 		 (mode & GEN6_RC_CTL_RC6p_ENABLE) ? "on" : "off",
 		 (mode & GEN6_RC_CTL_RC6pp_ENABLE) ? "on" : "off");
@@ -3341,7 +3343,9 @@ static void gen8_enable_rps(struct drm_device *dev)
 	/* 3: Enable RC6 */
 	if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE)
 		rc6_mask = GEN6_RC_CTL_RC6_ENABLE;
+
 	intel_print_rc6_info(dev, rc6_mask);
+
 	I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE |
 				    GEN6_RC_CTL_EI_MODE(1) |
 				    rc6_mask);
diff --git a/sys/external/bsd/drm2/pci/drm_pci.c b/sys/external/bsd/drm2/pci/drm_pci.c
index 9f3729e33dd..924f5817827 100644
--- a/sys/external/bsd/drm2/pci/drm_pci.c
+++ b/sys/external/bsd/drm2/pci/drm_pci.c
@@ -239,21 +239,28 @@ drm_pci_irq_install(struct drm_device *dev, irqreturn_t (*handler)(void *),
 	const char *intrstr;
 	char intrbuf[PCI_INTRSTR_LEN];
 	struct drm_bus_irq_cookie *irq_cookie;
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 
 	irq_cookie = kmem_alloc(sizeof(*irq_cookie), KM_SLEEP);
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 
 	if (dev->pdev->msi_enabled) {
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 		irq_cookie->intr_handles = dev->pdev->intr_handles;
 		dev->pdev->intr_handles = NULL;
 	} else {
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 		if (pci_intx_alloc(pa, &irq_cookie->intr_handles))
 			return -ENOENT;
 	}
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 
 	intrstr = pci_intr_string(pa->pa_pc, irq_cookie->intr_handles[0],
 	    intrbuf, sizeof(intrbuf));
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 	irq_cookie->ih_cookie = pci_intr_establish_xname(pa->pa_pc,
 	    irq_cookie->intr_handles[0], IPL_DRM, handler, arg, name);
+	aprint_error_dev(dev->dev, "%s: %04d: %s\n", __FILE__, __LINE__, __FUNCTION__);
 	if (irq_cookie->ih_cookie == NULL) {
 		aprint_error_dev(dev->dev,
 		    "couldn't establish interrupt at %s (%s)\n", intrstr, name);