[bootlin/training-materials updates] master: labs: kernel-debugging: Add a sentence about rebuilding the crashing module (07aaa89d)
Paul Kocialkowski
paul.kocialkowski at bootlin.com
Tue Dec 20 15:58:06 CET 2022
Repository : https://github.com/bootlin/training-materials
On branch : master
Link : https://github.com/bootlin/training-materials/commit/07aaa89d0dcbd2e94f22971035fc3a8e178862bc
>---------------------------------------------------------------
commit 07aaa89d0dcbd2e94f22971035fc3a8e178862bc
Author: Paul Kocialkowski <paul.kocialkowski at bootlin.com>
Date: Tue Dec 20 15:56:22 2022 +0100
labs: kernel-debugging: Add a sentence about rebuilding the crashing module
A rebuild is needed to enable the dynamic debug feature in the module.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski at bootlin.com>
>---------------------------------------------------------------
07aaa89d0dcbd2e94f22971035fc3a8e178862bc
labs/kernel-debugging/kernel-debugging.tex | 3 +++
1 file changed, 3 insertions(+)
diff --git a/labs/kernel-debugging/kernel-debugging.tex b/labs/kernel-debugging/kernel-debugging.tex
index 7276557a..7a69959a 100644
--- a/labs/kernel-debugging/kernel-debugging.tex
+++ b/labs/kernel-debugging/kernel-debugging.tex
@@ -27,6 +27,9 @@ Now, recompile your kernel with the following options:
it now will allow to avoid recompiling the whole kernel again.
\end{itemize}
+Also recompile the kernel module to have it built against the updated kernel
+config in order to take in account the new enabled options.
+
Once this is done, in U-Boot, add \code{loglevel=8} to the kernel
command line to get the debugging messages directly in the console
(otherwise you will only see them in \code{dmesg}).
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