Hello,
When applying the patch to upgrade from 4.19.28 to 4.19.29 I get the following output:
$ git diff v4.19.28 v4.19.29 | (cd ../linux-4.19.29/ && git apply -)
<stdin>:6204: space before tab in indent.
echo "ERROR: Could not reach other namespace(s)" 1>&2
warning: 1 line adds whitespace errors.
It is caused by this line:
+ echo "ERROR: Could not reach other namespace(s)" 1>&2
in commit 5c39e08fc417b91d24d243bc6d1a305e1c38fb9f
Erich