Rebase of parona-source's mysql-8.4.7-patches-01 0006 onto MySQL 9.7.4,
which added MY-015150 to the same exclusion list.

Exclude linux specific diagnostic for perfschema.error_log:
* MY-011951 -> ER_IB_MSG_126, page_cleaner succeeded in setting
  coordinator priority
* MY-011952 -> ER_IB_MSG_127, page_cleaner didn't succeed in setting
  coordinator priority.

Original: https://github.com/parona-source/mysql-server/releases/tag/mysql-8.4.7-patches-01

diff -ruN a/mysql-test/suite/perfschema/r/error_log.result b/mysql-test/suite/perfschema/r/error_log.result
--- a/mysql-test/suite/perfschema/r/error_log.result	2026-11-05 14:38:14.613263862 -0300
+++ b/mysql-test/suite/perfschema/r/error_log.result	2026-11-05 14:38:14.624468294 -0300
@@ -93,7 +93,8 @@
 "MY-013884", "MY-013908", "MY-013930", "MY-014013",
 "MY-000068", "MY-014066", "MY-014067", "MY-014068",
 "MY-013932", "MY-010101", "MY-010099", "MY-011070",
-"MY-011872", "MY-011874", "MY-015140", "MY-015150")
+"MY-011872", "MY-011874", "MY-015140", "MY-015150",
+"MY-011951", "MY-011952")
 ORDER BY logged, error_code;
 prio	error_code	subsystem
 System	MY-015015	Server
diff -ruN a/mysql-test/suite/perfschema/t/error_log.test b/mysql-test/suite/perfschema/t/error_log.test
--- a/mysql-test/suite/perfschema/t/error_log.test	2026-11-05 14:38:14.615183440 -0300
+++ b/mysql-test/suite/perfschema/t/error_log.test	2026-11-05 14:38:14.624527535 -0300
@@ -142,6 +142,8 @@
 # MY-011070: ER_DEPRECATE_MSG_NO_REPLACEMENT
 # MY-011872,MY-011874: ER_IB_MSG_47,ER_IB_MSG_49, innodb_numa_interleave constructor and destructor, depends on platform
 # MY-015140: ER_IB_MSG_INNODB_FLUSH_METHOD, info emitted if default flush method is used on non-Windows platforms, depends on platform
+# MY-011951: page_cleaner succeeded in setting coordinator priority.
+# MY-011952: page_cleaner didn't succeed in setting coordinator priority.
 SELECT prio,error_code,subsystem
   FROM performance_schema.error_log
  WHERE logged>=@startup
@@ -156,7 +158,8 @@
                          "MY-013884", "MY-013908", "MY-013930", "MY-014013",
                          "MY-000068", "MY-014066", "MY-014067", "MY-014068",
                          "MY-013932", "MY-010101", "MY-010099", "MY-011070",
-                         "MY-011872", "MY-011874", "MY-015140", "MY-015150")
+                         "MY-011872", "MY-011874", "MY-015140", "MY-015150",
+                         "MY-011951", "MY-011952")
  ORDER BY logged, error_code;
 
 --echo