[PATCH] Linux Kernel Dump Test Module

A simple module to test Linux Kernel Dump mechanism.  This module uses
jprobes to install/activate pre-defined crash points.  At different crash
points, various types of crashing scenarios are created like a BUG(),
panic(), exception, recursive loop and stack overflow.  The user can
activate a crash point with specific type by providing parameters at the
time of module insertion.  Please see the file header for usage
information.  The module is based on the Linux Kernel Dump Test Tool by
Fernando <http://lkdtt.sourceforge.net>.

This module could be merged with mainline. Jprobes is used here so that the
context in which crash point is hit, could be maintained. This implements
all the crash points as done by LKDTT except the one in the middle of
tasklet_action().

Signed-off-by: Ankita Garg <ankita@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index f9ae75cc0145..756a908c441d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -384,3 +384,17 @@ config RCU_TORTURE_TEST
           at boot time (you probably don't).
           Say M if you want the RCU torture tests to build as a module.
           Say N if you are unsure.
+
+config LKDTM
+        tristate "Linux Kernel Dump Test Tool Module"
+        depends on KPROBES
+        default n
+        help
+        This module enables testing of the different dumping mechanisms by
+        inducing system failures at predefined crash points.
+        If you don't need it: say N
+        Choose M here to compile this code as a module. The module will be
+        called lkdtm.
+
+        Documentation on how to use the module can be found in
+        drivers/misc/lkdtm.c