I received a note from bugzilla.kernel.org that another user found 6.0.0rc7 no longer had the expedited RCU CPU stalls issue, but before I could grab and try it, the official release of 6.0 came out, so I’m going to build it and give it a try on a few select servers.  If it runs clean during the week I’ll propagate it to the other machines this coming weekend.