diff --git a/debian/unstable-tests.amd64 b/debian/unstable-tests.amd64
new file mode 100644
index 0000000000000000000000000000000000000000..2f4c5cb6057f6581910d6a104d9e775e57a1500d
--- /dev/null
+++ b/debian/unstable-tests.amd64
@@ -0,0 +1,8 @@
+mroonga/storage.index_multiple_column_range_all_used_less_than                             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_all_used_less_than_or_equal                    : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_have_prefix_less_than           : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_have_prefix_less_than_or_equal  : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_no_prefix_less_than             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_no_prefix_less_than_or_equal    : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.optimization_order_limit_optimized_datetime_less_than                      : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.optimization_order_limit_optimized_datetime_less_than_or_equal             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
diff --git a/debian/unstable-tests.arm64 b/debian/unstable-tests.arm64
new file mode 100644
index 0000000000000000000000000000000000000000..2f4c5cb6057f6581910d6a104d9e775e57a1500d
--- /dev/null
+++ b/debian/unstable-tests.arm64
@@ -0,0 +1,8 @@
+mroonga/storage.index_multiple_column_range_all_used_less_than                             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_all_used_less_than_or_equal                    : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_have_prefix_less_than           : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_have_prefix_less_than_or_equal  : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_no_prefix_less_than             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_no_prefix_less_than_or_equal    : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.optimization_order_limit_optimized_datetime_less_than                      : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.optimization_order_limit_optimized_datetime_less_than_or_equal             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
diff --git a/debian/unstable-tests.ppc64el b/debian/unstable-tests.ppc64el
new file mode 100644
index 0000000000000000000000000000000000000000..30a62ab17a8e856f2dcdae802734a9cf2cfb52df
--- /dev/null
+++ b/debian/unstable-tests.ppc64el
@@ -0,0 +1,16 @@
+mroonga/storage.index_multiple_column_range_all_used_less_than                             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_all_used_less_than_or_equal                    : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_have_prefix_less_than           : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_have_prefix_less_than_or_equal  : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_no_prefix_less_than             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.index_multiple_column_range_partially_used_no_prefix_less_than_or_equal    : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.optimization_order_limit_optimized_datetime_less_than                      : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+mroonga/storage.optimization_order_limit_optimized_datetime_less_than_or_equal             : MDEV-16127 - mroonga/storage.* tests fail with GCC 8
+binlog.binlog_mysqlbinlog_row_innodb : MDEV-10604 - Known unstable test
+binlog.binlog_mysqlbinlog_row_myisam : MDEV - not reported yet
+main.select_pkeycache                : MDEV-15430 - Related type_float.test floating point error
+main.select                          : MDEV-15430 - Related type_float.test floating point error
+main.select_jcl6                     : MDEV-15430 - Related type_float.test floating point error
+main.type_float                      : MDEV-15430 - Related type_float.test floating point error
+main.type_newdecimal                 : MDEV-15430 - Related type_float.test floating point error
+main.type_ranges                     : MDEV-15430 - Related type_float.test floating point error