panic

kernel_module/panic.c

@@ -0,0 +1,26 @@
+/*
+It will happen eventually, so you might as well learn do deal with it.
+
+TODO: how to scroll up to see full trace? Shift + Page Up does not work as it normally does:
+https://superuser.com/questions/848412/scrolling-up-the-failed-screen-with-kernel-panic
+
+The alternative is to get the serial data out streamed to console or to a file:
+
+- https://superuser.com/questions/269228/write-qemu-booting-virtual-machine-output-to-a-file
+- http://www.reactos.org/wiki/QEMU#Redirect_to_a_file
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+int init_module(void)
+{
+	printk(KERN_INFO "panic init\n");
+	panic("hello panic");
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	printk(KERN_INFO "panic cleanup\n");
+}