On Tue, Oct 08, 2024 at 04:22:26PM +0100, Juri Lelli wrote: > Does this report make any sense? If it does, has this issue ever been > reported and possibly discussed? I guess it’s kind of a corner case, but > I wonder if anybody has suggestions already on how to possibly try to > tackle it from a kernel perspective. Any shared lock can cause such havoc. Futex hash buckets is just one of a number of very popular ones that's relatively easy to hit. I do have some futex-numa patches still pending, but they won't magically sure this either. Userspace needs help at the very least.
