path: root/fs/pstore/Kconfig
diff options
authorAnton Vorontsov <anton.vorontsov@linaro.org>2012-05-26 06:20:19 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-06-13 16:59:27 -0700
commitf29e5956aebafe63f81e80f972c44c4a666e5c7f (patch)
tree16b1c8c095f8a1d0d12bd2e6cb66e29ab4c1e516 /fs/pstore/Kconfig
parent89a86a2da30a6a90dda719874092905cd762b7ef (diff)
pstore: Add console log messages support
Pstore doesn't support logging kernel messages in run-time, it only dumps dmesg when kernel oopses/panics. This makes pstore useless for debugging hangs caused by HW issues or improper use of HW (e.g. weird device inserted -> driver tried to write a reserved bits -> SoC hanged. In that case we don't get any messages in the pstore. Therefore, let's add a runtime logging support: PSTORE_TYPE_CONSOLE. Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/pstore/Kconfig')
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 23ade2680a4..d044de6ee30 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -12,6 +12,13 @@ config PSTORE
If you don't have a platform persistent store driver,
say N.
+ bool "Log kernel console messages"
+ depends on PSTORE
+ help
+ When the option is enabled, pstore will log all kernel
+ messages, even if no oops or panic happened.
tristate "Log panic/oops to a RAM buffer"
depends on PSTORE