On Thu, Jun 20, 2024 at 05:35:45PM -0700, David Rientjes wrote: > - slab_mutex This is weird. You must have very strange workloads running ;-) It protects the list of slabs. So it's taken for - Slab creation / destruction - CPU online/offline - Memory hotplug - Reading /proc/slabinfo All of these should be rare events, but don't seem to be for you?