Marko tested this is fixed in linux-image-5.14.0-4-amd64 (5.14.16-1). Thanks for the update. https://jira.mariadb.org/browse/MDEV-26674?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel&focusedCommentId=204907#comment-204907