Bug #118212 Some router tests crash under AddressSanitizer

Submitted:	16 May 2025 10:36	Modified:	28 Oct 2025 9:37
Reporter:	Laurynas Biveinis (OCA)	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Router	Severity:	S3 (Non-critical)
Version:	9.3.0	OS:	MacOS (15.5)
Assigned to:		CPU Architecture:	ARM

Description:
Server built with -DCMAKE_BUILD_TYPE=Debug -DWITH_DEBUG=ON -DMYSQL_MAINTAINER_MODE=ON -DWITH_SYSTEM_LIBS=ON -DWITH_NDBCLUSTER_STORAGE_ENGINE=OFF -DCMAKE_CXX_FLAGS=-g -DCMAKE_CXX_FLAGS_DEBUG=-g -DCMAKE_CXX_FLAGS_RELEASE=-O2 -DNDEBUG -g -DWITH_ASAN=ON -DWITH_ASAN_SCOPE=ON -DWITH_UBSAN=ON

$ ./mtr router.bootstrap_mrs_innodb_cluster
...
[ 50%] router.bootstrap_mrs_innodb_cluster       [ fail ]
        Test ended at 2025-05-16 13:33:47

CURRENT_TEST: router.bootstrap_mrs_innodb_cluster
=================================================================
AddressSanitizer:DEADLYSIGNAL
AddressSanitizer: nested bug in the same thread, aborting.
mysqltest: At line 22: Command "$MYSQLROUTER_BOOTSTRAP
--conf-set-option=DEFAULT.plugin_folder=$ROUTER_PLUGIN_DIRECTORY
-B admin:admin_pass@127.0.0.1:$MASTER_MYPORT
--directory $MYSQL_TMP_DIR/bootstrap_folder/
--mrs --mrs-global-secret something_important " failed.
...

How to repeat:
See above

Same with: 
router.bootstrap_mrs_developer
router.bootstrap_mrs_schema_unsupported_version

Hello Laurynas,

Thank you for the report and feedback.

regards,
Umesh

No longer reproduces with 9.5.0. Leaving it for you to close in case you want to update release notes etc.

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