Index: sys/dev/atkbdc/atkbd.c
===================================================================
--- sys/dev/atkbdc/atkbd.c
+++ sys/dev/atkbdc/atkbd.c
@@ -682,6 +682,9 @@
 			evdev_sync(state->ks_evdev);
 		}
 	}
+
+	if (state->ks_evdev != NULL && evdev_is_grabbed(state->ks_evdev))
+		return (NOKEY);
 #endif
 
 	/* return the byte as is for the K_RAW mode */
Index: sys/dev/atkbdc/psm.c
===================================================================
--- sys/dev/atkbdc/psm.c
+++ sys/dev/atkbdc/psm.c
@@ -5134,6 +5134,10 @@
 			break;
 		}
 
+	/* Store last packet for reinjection if it has not been set already */
+	if (timevalisset(&sc->idletimeout) && sc->idlepacket.inputbytes == 0)
+		sc->idlepacket = *pb;
+
 #ifdef EVDEV_SUPPORT
 	if (evdev_rcpt_mask & EVDEV_RCPT_HW_MOUSE &&
 	    sc->hw.model != MOUSE_MODEL_ELANTECH &&
@@ -5167,6 +5171,10 @@
 		evdev_push_mouse_btn(sc->evdev_r, ms.button);
 		evdev_sync(sc->evdev_r);
 	}
+
+	if ((sc->evdev_a != NULL && evdev_is_grabbed(sc->evdev_a)) ||
+	    (sc->evdev_r != NULL && evdev_is_grabbed(sc->evdev_r)))
+		goto next;
 #endif
 
 	/* scale values */
@@ -5187,10 +5195,6 @@
 		}
 	}
 
-	/* Store last packet for reinjection if it has not been set already */
-	if (timevalisset(&sc->idletimeout) && sc->idlepacket.inputbytes == 0)
-		sc->idlepacket = *pb;
-
 	ms.dx = x;
 	ms.dy = y;
 	ms.dz = z;
Index: sys/dev/evdev/evdev.h
===================================================================
--- sys/dev/evdev/evdev.h
+++ sys/dev/evdev/evdev.h
@@ -129,6 +129,7 @@
 int evdev_set_report_size(struct evdev_dev *, size_t);
 void evdev_set_flag(struct evdev_dev *, uint16_t);
 void *evdev_get_softc(struct evdev_dev *);
+bool evdev_is_grabbed(struct evdev_dev *);
 
 /* Multitouch related functions: */
 int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *, int32_t);
Index: sys/dev/evdev/evdev.c
===================================================================
--- sys/dev/evdev/evdev.c
+++ sys/dev/evdev/evdev.c
@@ -76,6 +76,7 @@
 int evdev_rcpt_mask = EVDEV_RCPT_HW_MOUSE | EVDEV_RCPT_HW_KBD;
 #endif
 int evdev_sysmouse_t_axis = 0;
+bool evdev_allow_grab_syscons = true;
 
 SYSCTL_NODE(_kern, OID_AUTO, evdev, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
     "Evdev args");
@@ -85,6 +86,8 @@
     "bit2 - mouse hardware, bit3 - keyboard hardware");
 SYSCTL_INT(_kern_evdev, OID_AUTO, sysmouse_t_axis, CTLFLAG_RWTUN,
     &evdev_sysmouse_t_axis, 0, "Extract T-axis from 0-none, 1-ums, 2-psm");
+SYSCTL_BOOL(_kern_evdev, OID_AUTO, allow_grab_syscons, CTLFLAG_RWTUN,
+    &evdev_allow_grab_syscons, 0, "Evdev can grab system console input");
 #endif
 SYSCTL_NODE(_kern_evdev, OID_AUTO, input, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
     "Evdev input devices");
@@ -1097,6 +1100,19 @@
 	return (0);
 }
 
+bool
+evdev_is_grabbed(struct evdev_dev *evdev)
+{
+	if (kdb_active || SCHEDULER_STOPPED() || !evdev_allow_grab_syscons)
+		return (false);
+	/*
+	 * The function is intended to be called from evdev-unrelated parts of
+	 * code like syscons-compatible parts of mouse and keyboard drivers.
+	 * That makes unlocked read-only access acceptable.
+	 */
+	return (evdev->ev_grabber != NULL);
+}
+
 static void
 evdev_repeat_callout(void *arg)
 {
Index: sys/dev/gpio/gpiokeys.c
===================================================================
--- sys/dev/gpio/gpiokeys.c
+++ sys/dev/gpio/gpiokeys.c
@@ -194,6 +194,10 @@
 		evdev_push_key(sc->sc_evdev, key->evcode, pressed);
 		evdev_sync(sc->sc_evdev);
 	}
+	if (evdev_is_grabbed(sc->sc_evdev)) {
+		GPIOKEYS_UNLOCK(sc);
+		return;
+	}
 #endif
 	if (key->keycode != GPIOKEY_NONE) {
 		code = key->keycode & SCAN_KEYCODE_MASK;
Index: sys/dev/hid/hkbd.c
===================================================================
--- sys/dev/hid/hkbd.c
+++ sys/dev/hid/hkbd.c
@@ -394,6 +394,8 @@
 	if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && sc->sc_evdev != NULL)
 		evdev_push_event(sc->sc_evdev, EV_KEY,
 		    evdev_hid2key(KEY_INDEX(key)), !(key & KEY_RELEASE));
+	if (sc->sc_evdev != NULL && evdev_is_grabbed(sc->sc_evdev))
+		return;
 #endif
 
 	tail = (sc->sc_inputtail + 1) % HKBD_IN_BUF_SIZE;
@@ -561,6 +563,8 @@
 #ifdef EVDEV_SUPPORT
 	if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && sc->sc_evdev != NULL)
 		evdev_sync(sc->sc_evdev);
+	if (sc->sc_evdev != NULL && evdev_is_grabbed(sc->sc_evdev))
+		return;
 #endif
 
 	/* wakeup keyboard system */
Index: sys/dev/hyperv/input/hv_kbd.c
===================================================================
--- sys/dev/hyperv/input/hv_kbd.c
+++ sys/dev/hyperv/input/hv_kbd.c
@@ -340,6 +340,8 @@
 			evdev_sync(sc->ks_evdev);
 		}
 	}
+	if (sc->ks_evdev != NULL && evdev_is_grabbed(sc->ks_evdev))
+		return (NOKEY);
 #endif
 	++kbd->kb_count;
 	DEBUG_HVKBD(kbd, "read scan: 0x%x\n", scancode);
Index: sys/dev/kbdmux/kbdmux.c
===================================================================
--- sys/dev/kbdmux/kbdmux.c
+++ sys/dev/kbdmux/kbdmux.c
@@ -756,6 +756,9 @@
 			evdev_sync(state->ks_evdev);
 		}
 	}
+
+	if (state->ks_evdev != NULL && evdev_is_grabbed(state->ks_evdev))
+		return (NOKEY);
 #endif
 
 	/* return the byte as is for the K_RAW mode */
Index: sys/dev/syscons/sysmouse.c
===================================================================
--- sys/dev/syscons/sysmouse.c
+++ sys/dev/syscons/sysmouse.c
@@ -295,6 +295,8 @@
 
 #ifdef EVDEV_SUPPORT
 	smdev_evdev_write(x, y, z, mouse_status.button);
+	if (evdev_is_grabbed(sysmouse_evdev))
+		goto done;
 #endif
 
 	if (!tty_opened(sysmouse_tty))
Index: sys/dev/usb/input/ukbd.c
===================================================================
--- sys/dev/usb/input/ukbd.c
+++ sys/dev/usb/input/ukbd.c
@@ -394,6 +394,8 @@
 	if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && sc->sc_evdev != NULL)
 		evdev_push_event(sc->sc_evdev, EV_KEY,
 		    evdev_hid2key(KEY_INDEX(key)), !(key & KEY_RELEASE));
+	if (sc->sc_evdev != NULL && evdev_is_grabbed(sc->sc_evdev))
+		return;
 #endif
 
 	if (sc->sc_inputs < UKBD_IN_BUF_SIZE) {
@@ -562,6 +564,8 @@
 #ifdef EVDEV_SUPPORT
 	if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && sc->sc_evdev != NULL)
 		evdev_sync(sc->sc_evdev);
+	if (sc->sc_evdev != NULL && evdev_is_grabbed(sc->sc_evdev))
+		return;
 #endif
 
 	/* wakeup keyboard system */
Index: sys/dev/usb/input/ums.c
===================================================================
--- sys/dev/usb/input/ums.c
+++ sys/dev/usb/input/ums.c
@@ -875,6 +875,10 @@
 {
 	uint8_t buf[8];
 
+#ifdef EVDEV_SUPPORT
+	if (evdev_is_grabbed(sc->sc_evdev))
+		return;
+#endif
 	if (1) {
 		if (dx > 254)
 			dx = 254;
Index: sys/dev/vt/vt_sysmouse.c
===================================================================
--- sys/dev/vt/vt_sysmouse.c
+++ sys/dev/vt/vt_sysmouse.c
@@ -249,6 +249,8 @@
 
 #ifdef EVDEV_SUPPORT
 	sysmouse_evdev_store(x, y, z, sysmouse_status.button);
+	if (evdev_is_grabbed(sysmouse_evdev))
+		goto done;
 #endif
 
 	/* The first five bytes are compatible with MouseSystems. */