In the numa_post_machine_init(), we use CPU_FOREACH macro to set all CPUs' namu_node. So, we should make sure that we call it after Qemu has already initialied all the CPUs.
As we all know, the CPUs can be created by "-smp"(pc_new_cpu) or "-device"(qdev_device_add) command. But, before the device init, Qemu execute the numa_post_machine_init earlier. It makes the mapping of NUMA nodes and CPUs incorrect. The patch move the numa_post_machine_init func in the appropriate location. Signed-off-by: Dou Liyang <douly.f...@cn.fujitsu.com> --- vl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/vl.c b/vl.c index c643d3f..f38b0e2 100644 --- a/vl.c +++ b/vl.c @@ -4549,8 +4549,6 @@ int main(int argc, char **argv, char **envp) cpu_synchronize_all_post_init(); - numa_post_machine_init(); - if (qemu_opts_foreach(qemu_find_opts("fw_cfg"), parse_fw_cfg, fw_cfg_find(), NULL) != 0) { exit(1); @@ -4571,6 +4569,9 @@ int main(int argc, char **argv, char **envp) device_init_func, NULL, NULL)) { exit(1); } + + numa_post_machine_init(); + rom_reset_order_override(); /* Did we create any drives that we failed to create a device for? */ -- 2.5.5