diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d64e3acb000ef62b08921d7f946f9fdfc2d2182..878ac0c2cc6864a84c7df230c5c12efee1944607 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -493,7 +493,7 @@ static void __sysrq_put_key_op(int key, struct sysrq_key_op *op_p)
                 sysrq_key_table[i] = op_p;
 }
 
-static void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
 {
 	struct sysrq_key_op *op_p;
 	int orig_log_level;
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 4496322e28dd95534a99ca28776cb77b91e966e6..609e8ca5f53429bddfc2c29aee5e0411cfe464af 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -45,6 +45,7 @@ struct sysrq_key_op {
  */
 
 void handle_sysrq(int key, struct tty_struct *tty);
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask);
 int register_sysrq_key(int key, struct sysrq_key_op *op);
 int unregister_sysrq_key(int key, struct sysrq_key_op *op);
 struct sysrq_key_op *__sysrq_get_key_op(int key);
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 5cb7cd1de10c7dd5b3380f69d49854cb539a4011..8bc5eeffec8a953f844d853cc9abe30bbb4d77c4 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -605,13 +605,13 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs)
 		if (dbg_kdb_mode) {
 			kgdb_connected = 1;
 			error = kdb_stub(ks);
+			kgdb_connected = 0;
 		} else {
 			error = gdb_serial_stub(ks);
 		}
 
 		if (error == DBG_PASS_EVENT) {
 			dbg_kdb_mode = !dbg_kdb_mode;
-			kgdb_connected = 0;
 		} else if (error == DBG_SWITCH_CPU_EVENT) {
 			dbg_cpu_switch(cpu, dbg_switch_cpu);
 			goto cpu_loop;
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 4b17b32695259060260f9748d2c51490397c4888..e8fd6868682d1c3f9d5736aa7a9f9148be49e75e 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -621,10 +621,8 @@ static void gdb_cmd_query(struct kgdb_state *ks)
 	switch (remcom_in_buffer[1]) {
 	case 's':
 	case 'f':
-		if (memcmp(remcom_in_buffer + 2, "ThreadInfo", 10)) {
-			error_packet(remcom_out_buffer, -EINVAL);
+		if (memcmp(remcom_in_buffer + 2, "ThreadInfo", 10))
 			break;
-		}
 
 		i = 0;
 		remcom_out_buffer[0] = 'm';
@@ -665,10 +663,9 @@ static void gdb_cmd_query(struct kgdb_state *ks)
 		pack_threadid(remcom_out_buffer + 2, thref);
 		break;
 	case 'T':
-		if (memcmp(remcom_in_buffer + 1, "ThreadExtraInfo,", 16)) {
-			error_packet(remcom_out_buffer, -EINVAL);
+		if (memcmp(remcom_in_buffer + 1, "ThreadExtraInfo,", 16))
 			break;
-		}
+
 		ks->threadid = 0;
 		ptr = remcom_in_buffer + 17;
 		kgdb_hex2long(&ptr, &ks->threadid);
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 184cd8209c365de082c70c354f25758d22339ed8..ebe4a287419e2788f4a08d263007350fa0e3eb86 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1820,9 +1820,8 @@ static int kdb_sr(int argc, const char **argv)
 {
 	if (argc != 1)
 		return KDB_ARGCOUNT;
-	sysrq_toggle_support(1);
 	kdb_trap_printk++;
-	handle_sysrq(*argv[1], NULL);
+	__handle_sysrq(*argv[1], NULL, 0);
 	kdb_trap_printk--;
 
 	return 0;
@@ -1883,6 +1882,7 @@ static int kdb_lsmod(int argc, const char **argv)
 			kdb_printf(" (Loading)");
 		else
 			kdb_printf(" (Live)");
+		kdb_printf(" 0x%p", mod->module_core);
 
 #ifdef CONFIG_MODULE_UNLOAD
 		{
@@ -2291,6 +2291,9 @@ static int kdb_ll(int argc, const char **argv)
 	while (va) {
 		char buf[80];
 
+		if (KDB_FLAG(CMD_INTERRUPT))
+			return 0;
+
 		sprintf(buf, "%s " kdb_machreg_fmt "\n", command, va);
 		diag = kdb_parse(buf);
 		if (diag)