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Dear folks,

a small patch proposal to have ddb() switch to the console when invoked. So 
when working on say ttyE5 and a panic occures, it'll switch to the console 
where it prints the ddb prompt and backtrack if any.

Avoids confusion mainly and prevents ppl. from typing in stuff and not 
understanding why the program is not responding.

regards,
Reinoud


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Index: ddb/db_trap.c
===================================================================
RCS file: /cvsroot/src/sys/ddb/db_trap.c,v
retrieving revision 1.23
diff -u -p -r1.23 db_trap.c
--- ddb/db_trap.c	11 Dec 2005 12:20:53 -0000	1.23
+++ ddb/db_trap.c	11 Feb 2006 15:59:51 -0000
@@ -48,6 +48,9 @@ __KERNEL_RCSID(0, "$NetBSD: db_trap.c,v 
 #include <ddb/db_sym.h>
 #include <ddb/db_extern.h>
 
+#include <dev/wscons/wsdisplayvar.h>
+#include "wsdisplay.h"
+
 /*
  * db_trap_callback can be hooked by MD port code to handle special
  * cases such as disabling hardware watchdogs while in DDB.
@@ -70,6 +73,9 @@ db_trap(int type, int code)
 	if (db_trap_callback) db_trap_callback(1);
 
 	if (db_stop_at_pc(DDB_REGS, &bkpt)) {
+#if NWSDISPLAY > 0
+		wsdisplay_switchtoconsole();
+#endif
 		if (db_inst_count) {
 			db_printf("After %d instructions "
 			    "(%d loads, %d stores),\n",
Index: dev/wscons/wsdisplay.c
===================================================================
RCS file: /cvsroot/src/sys/dev/wscons/wsdisplay.c,v
retrieving revision 1.88
diff -u -p -r1.88 wsdisplay.c
--- dev/wscons/wsdisplay.c	7 Feb 2006 09:13:02 -0000	1.88
+++ dev/wscons/wsdisplay.c	11 Feb 2006 15:59:52 -0000
@@ -2026,9 +2026,7 @@ wsdisplay_switchtoconsole(void)
 		sc = wsdisplay_console_device;
 		if ((scr = sc->sc_scr[0]) == NULL)
 			return;
-		(*sc->sc_accessops->show_screen)(sc->sc_accesscookie,
-						 scr->scr_dconf->emulcookie,
-						 0, NULL, NULL);
+		wsdisplay_switch((struct device *) sc, 0, 1);
 	}
 }
 

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