diff -Naur drbd-9.0.29~0+git.9a7bc817.orig/drbd/drbd-kernel-compat/gen_compat_patch.sh drbd-9.0.29~0+git.9a7bc817/drbd/drbd-kernel-compat/gen_compat_patch.sh
--- drbd-9.0.29~0+git.9a7bc817.orig/drbd/drbd-kernel-compat/gen_compat_patch.sh	2021-05-07 11:24:44.877547149 +0800
+++ drbd-9.0.29~0+git.9a7bc817/drbd/drbd-kernel-compat/gen_compat_patch.sh	2021-05-07 12:30:58.385703306 +0800
@@ -44,9 +44,19 @@
 
 if hash spatch && spatch_is_recent; then
     K=$(cat $incdir/kernelrelease.txt)
+
+    echo "  compat.h content ";
+    cat $incdir/compat.h;
+    echo "  -------------------   ";
+
     echo "  GENPATCHNAMES   "$K
     gcc -I $incdir -o $incdir/gen_patch_names -std=c99 drbd-kernel-compat/gen_patch_names.c
     $incdir/gen_patch_names > $incdir/applied_cocci_files.txt
+
+    echo "  APPLIED_COCCI_FILES   ";
+    cat $incdir/applied_cocci_files.txt;
+    echo "  -------------------   ";
+
     rm $incdir/gen_patch_names
     rm -f $incdir/.compat.cocci
     rm -f $incdir/.compat.patch
@@ -67,7 +77,15 @@
 		< drbd-kernel-compat/cocci/debugfs_compat_template.cocci.in \
 		>> $incdir/.compat.cocci
     done
+
+    coccilibpath=$(rpm -ql coccinelle|grep standard.h|xargs dirname);
+    echo "  SPATCH_SOURCES: "$*;
+    echo "  COCCI_LIBPATH: "$coccilibpath;
+
     if [ -e $incdir/.compat.cocci ]; then
+	echo "  GENCOCCIRULES .compat.cocci";
+	cat $incdir/.compat.cocci;
+
 	echo "  SPATCH   $chksum  "$K
 	# Note: $* (or $@) is NOT make magic variable now, this is a shell script
 	# make $@, the target file, was passed as $1, and is now $compat_patch
@@ -77,8 +95,14 @@
 	# we know we don't have white-space in the argument list
 
 	set +e
+
+	command="spatch --sp-file $incdir/.compat.cocci $@ --macro-file drbd-kernel-compat/cocci_macros.h --macro-file-builtins $coccilibpath/standard.h --iso-file $coccilibpath/standard.iso --very-quiet --all-includes > $compat_patch.tmp 2> $incdir/.spatch.stderr"
+	echo "  SPATCH COMMAND $command  ";
+
 	spatch --sp-file "$incdir/.compat.cocci" "$@" \
 		--macro-file drbd-kernel-compat/cocci_macros.h \
+		--macro-file-builtins $coccilibpath/standard.h \
+		--iso-file $coccilibpath/standard.iso \
 		--very-quiet \
 		--all-includes \
 		> "$compat_patch.tmp" \
@@ -94,9 +118,21 @@
 	echo "  SPATCH   $chksum  "$K" - nothing to do"
 	touch $compat_patch.tmp
     fi
+
+    echo "  GENSPATCHFILE $compat_patch.tmp  ";
+    cat $compat_patch.tmp;
+
     if [ -e $incdir/.compat.patch ]; then
+	echo "  EXIST $incdir/.compat.patch  ";
 	cat $incdir/.compat.patch >> $compat_patch.tmp
+	cat $compat_patch.tmp;
     fi
+
+    if [ -e $incdir/.spatch.stderr ]; then
+        echo "  GENSPATCHERR .spatch.stderr";
+        cat $incdir/.spatch.stderr;
+    fi
+
     mv $compat_patch.tmp $compat_patch
     # keep it around
     # to better be able to match the "stderr" warnings to their source files