@giampaolo.rodola: Your patch from 3 days ago in issue35917 included additional tests around the SharedMemoryManager which are now causing test failures in my new PR. This is my fault because I altered SharedMemoryManager to no longer support functionality from SyncManager that I thought could be confusing to include. I am just now discovering this and am not immediately sure if simply removing the SharedMemoryManager-relevant lines from your patch is the right solution but I wanted to mention this thought right away.
Thank you for discovering that SyncManager was being overlooked in the tests and the nice patch in issue35917.