The kernel offers with TIOCL_GETKMSGREDIRECT ioctl() the possibility to

redirect the kernel messages to a specific console.

However, since it's not possible to switch to the kernel message console
after a panic(), it would be nice if the kernel would print the panic
message on the current console.
Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

kernel/panic.c

@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/nmi.h>
 #include <linux/dmi.h>
+#include <linux/vt.h>
 
 int panic_on_oops;
 static unsigned long tainted_mask;
@@ -65,6 +66,9 @@ NORET_TYPE void panic(const char * fmt, ...)
 	 */
 	preempt_disable();
 
+	/* don't redirect the panic message to some hidden console */
+	vt_kmsg_redirect(0);
+
 	bust_spinlocks(1);
 	va_start(args, fmt);
 	vsnprintf(buf, sizeof(buf), fmt, args);