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I've encountered a compilation issue when KERNEL_REPLICATION is disabled in the config. ld: vmlinux.o: in function `alloc_insn_page': /home/amd/linux_mainline/arch/x86/kernel/kprobes/core.c:425: undefined reference to `numa_set_memory_rox' ld: vmlinux.o: in function `alloc_new_pack': /home/amd/linux_mainline/kernel/bpf/core.c:873: undefined reference to `numa_set_memory_rox' ld: vmlinux.o: in function `bpf_prog_pack_alloc': /home/amd/linux_mainline/kernel/bpf/core.c:891: undefined reference to `numa_set_memory_rox' ld: vmlinux.o: in function `bpf_trampoline_update': /home/amd/linux_mainline/kernel/bpf/trampoline.c:447: undefined reference to `numa_set_memory_rox' ld: vmlinux.o: in function `bpf_struct_ops_map_update_elem': /home/amd/linux_mainline/kernel/bpf/bpf_struct_ops.c:515: undefined reference to `numa_set_memory_rox' ld: vmlinux.o:/home/amd/linux_mainline/kernel/bpf/bpf_struct_ops.c:524: more undefined references to `numa_set_memory_rox' follow After some investigation, I've put together a patch that resolves this compilation issues for me. --- a/arch/x86/mm/pat/set_memory.c +++ b/arch/x86/mm/pat/set_memory.c @@ -2268,6 +2268,15 @@ int numa_set_memory_nonglobal(unsigned long addr, int numpages) return ret; } + +#else + +int numa_set_memory_rox(unsigned long addr, int numpages) +{ + return set_memory_rox(addr, numpages); + +} + #endif Additionally, I'm interested in evaluating the performance impact of this patchset on AMD processors. Could you please point me the benchmarks that you have used in cover letter? Best Regards, Shivank