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authorSimon Kagstrom <simon.kagstrom@netinsight.net>2010-03-06 00:42:49 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 22:26:32 +0300
commit0347af4ee3922220f6bfe74b87b526aa709a0365 (patch)
tree6b1f860991e3dae3fc110e02a1a838eb291b94ee /lib
parent33fd797b3e2c6a7663b9331150da0acdb31990a2 (diff)
downloadlinux-0347af4ee3922220f6bfe74b87b526aa709a0365.tar.xz
lkdtm: add debugfs access and loosen KPROBE ties
Add adds a debugfs interface and additional failure modes to LKDTM to provide similar functionality to the provoke-crash driver submitted here: http://lwn.net/Articles/371208/ Crashes can now be induced either through module parameters (as before) or through the debugfs interface as in provoke-crash. The patch also provides a new "direct" interface, where KPROBES are not used, i.e., the crash is invoked directly upon write to the debugfs file. When built without KPROBES configured, only this mode is available. Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net> Cc: M. Mohan Kumar <mohan@in.ibm.com> Cc: Americo Wang <xiyou.wangcong@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Eric W. Biederman" <ebiederm@xmission.com>, Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug5
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 5e3407d997b2..b520ec1f33c5 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -864,8 +864,7 @@ config DEBUG_FORCE_WEAK_PER_CPU
config LKDTM
tristate "Linux Kernel Dump Test Tool Module"
- depends on DEBUG_KERNEL
- depends on KPROBES
+ depends on DEBUG_FS
depends on BLOCK
default n
help
@@ -876,7 +875,7 @@ config LKDTM
called lkdtm.
Documentation on how to use the module can be found in
- drivers/misc/lkdtm.c
+ Documentation/fault-injection/provoke-crashes.txt
config FAULT_INJECTION
bool "Fault-injection framework"