kernel/panic: Show the stacktrace after additional notifier messages

Most systems keep the last messages from the panic, and we value the
stacktrace most, so dump it last in order to preserve it for
post-mortems.

References: https://gitlab.freedesktop.org/drm/intel/-/issues/8030


Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Martin Peres <martin.peres@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180903131745.30593-1-chris@chris-wilson.co.uk


Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

kernel/panic.c

@@ -346,13 +346,6 @@ void panic(const char *fmt, ...)
 		buf[len - 1] = '\0';
 
 	pr_emerg("Kernel panic - not syncing: %s\n", buf);
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-	/*
-	 * Avoid nested stack-dumping if a panic occurs during oops processing
-	 */
-	if (!test_taint(TAINT_DIE) && oops_in_progress <= 1)
-		dump_stack();
-#endif
 
 	/*
 	 * If kgdb is enabled, give it a chance to run before we stop all
@@ -384,6 +377,14 @@ void panic(const char *fmt, ...)
 
 	panic_print_sys_info(false);
 
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+	/*
+	 * Avoid nested stack-dumping if a panic occurs during oops processing
+	 */
+	if (!test_taint(TAINT_DIE) && oops_in_progress <= 1)
+		dump_stack();
+#endif
+
 	kmsg_dump_desc(KMSG_DUMP_PANIC, buf);
 
 	/*