@@ -39,6 +39,18 @@ can run kunit_tool:
``make ARCH=um mrproper``, just be aware that this will delete the
current configuration and all generated files.
+ You may see the following error if a prior build leaves behind
+ header files which 'make ARCH=um mrproper' fails to clean:
+
+ "undefined symbol sev_es_trampoline_start referenced ..."
+
+ This is special case scenario when a prior x86_64 build populates
+ the source tree with arch/x86/realmode/rm/pasyms.h. This header
+ will not be cleaned by 'make ARCH=um mrproper'
+
+ If you encouter this problem, run 'make ARCH=x86_64 mrproper' to
+ remove generated header files.
+
If everything worked correctly, you should see the following:
.. code-block::
If kunit run happens in a tree in which a x86_64 kernel was built, the source tree could be dirty. "make ARCH=um mrproper" will not clean the x86_64 build artifacts. Running "make ARCH=x86_64 mrproper" is necessary to clean them. Add this information to the documentation. Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> --- Documentation/dev-tools/kunit/start.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+)