[FE training-materials-updates] kernel-debugging: earlyprintk is for ARM
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Mon Mar 3 14:08:17 CET 2014
Repository : git://git.free-electrons.com/training-materials.git
On branch : master
Link : http://git.free-electrons.com/training-materials/commit/?id=aaa078811770502cbf4c40865e80d9360e81f8d0
>---------------------------------------------------------------
commit aaa078811770502cbf4c40865e80d9360e81f8d0
Author: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Date: Mon Mar 3 14:07:50 2014 +0100
kernel-debugging: earlyprintk is for ARM
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
>---------------------------------------------------------------
aaa078811770502cbf4c40865e80d9360e81f8d0
.../kernel-driver-development-debugging.tex | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/slides/kernel-driver-development-debugging/kernel-driver-development-debugging.tex b/slides/kernel-driver-development-debugging/kernel-driver-development-debugging.tex
index 595f980..3c5cc36 100644
--- a/slides/kernel-driver-development-debugging/kernel-driver-development-debugging.tex
+++ b/slides/kernel-driver-development-debugging/kernel-driver-development-debugging.tex
@@ -254,10 +254,10 @@
\item To get oops messages with symbol names instead of raw addresses
\item This obsoletes the \code{ksymoops} tool
\end{itemize}
- \item If your kernel doesn't boot yet or hangs without any message,
- you can activate early debugging options (\code{CONFIG_DEBUG_LL} and
- \code{CONFIG_EARLYPRINTK}), and add \code{earlyprintk} to the kernel
- command line.
+ \item On ARM, if your kernel doesn't boot or hangs without any
+ message, you can activate early debugging options
+ (\code{CONFIG_DEBUG_LL} and \code{CONFIG_EARLYPRINTK}), and add
+ \code{earlyprintk} to the kernel command line.
\item Techniques to locate the C instruction which caused an oops:
\url{http://j.mp/18oMRHx}
\end{itemize}
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