diff --git a/headers/os/kernel/OS.h b/headers/os/kernel/OS.h
index d7648ac9aa..c3ccad50a8 100644
--- a/headers/os/kernel/OS.h
+++ b/headers/os/kernel/OS.h
@@ -362,6 +362,9 @@ extern int disable_debugger(int state);
 extern void debug_printf(const char *format, ...)
 	__attribute__ ((format (__printf__, 1, 2)));
 extern void debug_vprintf(const char *format, va_list args);
+extern void ktrace_printf(const char *format, ...)
+	__attribute__ ((format (__printf__, 1, 2)));
+extern void ktrace_vprintf(const char *format, va_list args);
 
 
 /*-------------------------------------------------------------*/
diff --git a/headers/private/kernel/syscalls.h b/headers/private/kernel/syscalls.h
index e140f5fee3..fa1560fb2d 100644
--- a/headers/private/kernel/syscalls.h
+++ b/headers/private/kernel/syscalls.h
@@ -300,6 +300,7 @@ extern status_t		_kern_get_system_info(system_info *info, size_t size);
 
 /* Debug output */
 extern void			_kern_debug_output(const char *message);
+extern void			_kern_ktrace_output(const char *message);
 extern status_t		_kern_frame_buffer_update(addr_t baseAddress, int32 width,
 						int32 height, int32 depth, int32 bytesPerRow);
 
diff --git a/headers/private/kernel/tracing.h b/headers/private/kernel/tracing.h
index 4b5599160a..8b530dbaaf 100644
--- a/headers/private/kernel/tracing.h
+++ b/headers/private/kernel/tracing.h
@@ -87,6 +87,8 @@ char* alloc_tracing_buffer_strcpy(const char* source, size_t maxSize,
 			bool user);
 status_t tracing_init(void);
 
+void _user_ktrace_output(const char *message);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/system/kernel/debug/tracing.cpp b/src/system/kernel/debug/tracing.cpp
index 06e6719ad8..7f43e761f8 100644
--- a/src/system/kernel/debug/tracing.cpp
+++ b/src/system/kernel/debug/tracing.cpp
@@ -317,6 +317,32 @@ AbstractTraceEntry::AddDump(TraceOutput& out)
 bool AbstractTraceEntry::sPrintTeamID = false;
 
 
+//	#pragma mark -
+
+
+#if ENABLE_TRACING
+
+class UserTraceEntry : public AbstractTraceEntry {
+	public:
+		UserTraceEntry(const char* message)
+		{
+			fMessage = alloc_tracing_buffer_strcpy(message, 256, true);
+
+			Initialized();
+		}
+
+		virtual void AddDump(TraceOutput& out)
+		{
+			out.Print("user: %s", fMessage);
+		}
+
+	private:
+		char*	fMessage;
+};
+
+#endif	// ENABLE_TRACING
+
+
 //	#pragma mark - trace filters
 
 
@@ -1026,3 +1052,12 @@ tracing_init(void)
 	return B_OK;
 }
 
+
+void
+_user_ktrace_output(const char *message)
+{
+#if	ENABLE_TRACING
+	new(nothrow) UserTraceEntry(message);
+#endif	// ENABLE_TRACING
+}
+
diff --git a/src/system/libroot/os/debug.c b/src/system/libroot/os/debug.c
index 5a51248fd1..a5dc44f787 100644
--- a/src/system/libroot/os/debug.c
+++ b/src/system/libroot/os/debug.c
@@ -289,3 +289,23 @@ debug_vprintf(const char *format, va_list args)
 }
 
 
+void
+ktrace_printf(const char *format, ...)
+{
+	va_list list;
+	va_start(list, format);
+
+	ktrace_vprintf(format, list);
+
+	va_end(list);
+}
+
+
+void
+ktrace_vprintf(const char *format, va_list args)
+{
+	char buffer[1024];
+	vsnprintf(buffer, sizeof(buffer), format, args);
+
+	_kern_ktrace_output(buffer);
+}