diff -urN linux-2.6.16-panel-0.9.4/drivers/char/panel.c linux-2.6.16-panel-0.9.5/drivers/char/panel.c
--- linux-2.6.16-panel-0.9.4/drivers/char/panel.c	2006-12-18 19:14:41 +0100
+++ linux-2.6.16-panel-0.9.5/drivers/char/panel.c	2006-12-18 19:30:57 +0100
@@ -67,6 +67,10 @@
  * 2005/05/20 : 0.9.4
  *      - first working port on kernel 2.6
  *
+ * 2006/12/18 : 0.9.5
+ *      - fixed a long standing bug in 2.6 causing panics during reboot/kexec
+ *        if the LCD was enabled but not initialized due to lack of parport.
+ *
  * FIXME:
  *      - the initialization/deinitialization process is very dirty and should
  *        be rewritten. It may even be buggy.
@@ -113,7 +117,7 @@
 #define KEYPAD_MINOR		185
 #define SMARTCARD_MINOR		186
 
-#define PANEL_VERSION		"0.9.3"
+#define PANEL_VERSION		"0.9.5"
 
 #define LCD_MAXBYTES		256	/* max burst write */
 
@@ -489,6 +493,8 @@
 static int keypad_type = -1;
 static int smartcard_enabled = -1;
 
+static int lcd_initialized, keypad_initialized, smartcard_initialized;
+
 static int light_tempo = 0;
 
 static char lcd_must_clear = 0;
@@ -1265,7 +1271,7 @@
 
 /* public function usable from the kernel for any purpose */
 void panel_lcd_print(char *s) {
-    if (lcd_enabled)
+    if (lcd_enabled && lcd_initialized)
 	lcd_write(NULL, s, strlen(s), NULL);
 }
 
@@ -1384,6 +1390,11 @@
     pin_to_bits(lcd_cl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_CL], lcd_bits[LCD_PORT_C][LCD_BIT_CL]);
     pin_to_bits(lcd_da_pin, lcd_bits[LCD_PORT_D][LCD_BIT_DA], lcd_bits[LCD_PORT_C][LCD_BIT_DA]);
 
+    /* before this line, we must NOT send anything to the display.
+     * Since lcd_init_display() needs to write data, we have to
+     * enable mark the LCD initialized just before.
+     */
+    lcd_initialized = 1;
     lcd_init_display();
 
     /* display a short message */
@@ -1685,24 +1696,30 @@
 }
 
 static void panel_scan_timer(void) {
-    if (spin_trylock(&pprt_lock)) {
-	phys_scan_contacts();
-	spin_unlock(&pprt_lock); /* no need for the parport anymore */
-    }
+    if ((keypad_enabled && keypad_initialized)
+	|| (smartcard_enabled && smartcard_enabled)) {
 
-    if (!inputs_stable || phys_curr != phys_prev) {
-	panel_process_inputs();
-    }
+	if (spin_trylock(&pprt_lock)) {
+	    phys_scan_contacts();
+	    spin_unlock(&pprt_lock); /* no need for the parport anymore */
+        }
 
-    if (keypressed) {
-	if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
-	    lcd_backlight(1);
-	light_tempo = FLASH_LIGHT_TEMPO;
+        if (!inputs_stable || phys_curr != phys_prev) {
+	    panel_process_inputs();
+        }
     }
-    else if (light_tempo > 0) {
-	light_tempo--;
-	if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
-	    lcd_backlight(0);
+
+    if (lcd_enabled && lcd_initialized) {
+        if (keypressed) {
+	    if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
+	        lcd_backlight(1);
+	    light_tempo = FLASH_LIGHT_TEMPO;
+        }
+        else if (light_tempo > 0) {
+	    light_tempo--;
+	    if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
+	        lcd_backlight(0);
+        }
     }
 
     mod_timer(&scan_timer, jiffies + INPUT_POLL_TIME);
@@ -1946,6 +1963,7 @@
     }
     
     init_scan_timer();
+    keypad_initialized = 1;
 }
 
 
@@ -1954,6 +1972,7 @@
     
     panel_bind_callback(SMARTCARD_LOGICAL_DETECTOR, &smartcard_insert, 0, &smartcard_remove, 0);
     init_scan_timer();
+    smartcard_enabled = 1;
 }
 
 
@@ -2066,7 +2085,7 @@
 #endif /* !MODULE */
 
 static int panel_notify_sys(struct notifier_block *this, unsigned long code, void *unused) {
-    if (lcd_enabled) {
+    if (lcd_enabled && lcd_initialized) {
 	switch(code) {
 	case SYS_DOWN:
 	    panel_lcd_print("\x0cReloading\nSystem...\x1b[Lc\x1b[Lb\x1b[L+");
@@ -2147,15 +2166,15 @@
 	return;
     }
 
-    if (smartcard_enabled) {
+    if (smartcard_enabled && smartcard_initialized) {
 	misc_deregister( &smartcard_dev );
     }
 
-    if (keypad_enabled) {
+    if (keypad_enabled && keypad_initialized) {
 	misc_deregister( &keypad_dev );
     }
 
-    if (lcd_enabled) {
+    if (lcd_enabled && lcd_initialized) {
 	misc_deregister( &lcd_dev );
     }