On Sat, May 1, 2021 at 8:31 PM Alexandre Frade <kernel@xxxxxxxxxx> wrote: > > Dear Yu Zhao, > > I don't know if it's a known issue with the 5.12 kernel released [9f4ad9e]: > > LRU_GEN v2 & v5.12 final: Hi Alexandre, I think I hit this problem with Ubuntu too. Does your config include the following? CONFIG_MAXSMP=y CONFIG_NODES_SHIFT=10 CONFIG_NR_CPUS=8192 If so, then it's the same problem: there are no spare bits left in page->flags. Disabling CONFIG_MAXSMP should fix it, unless you really want to use 8192 CPUs and 1024 NUMA nodes :) Please let me know. Thanks!
