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Re: [Qemu-devel] [PATCH 2/2] vl: Ensure the cpu_synchronize_all_post_ini


From: Eduardo Habkost
Subject: Re: [Qemu-devel] [PATCH 2/2] vl: Ensure the cpu_synchronize_all_post_init func in the appropriate location
Date: Tue, 17 Jan 2017 18:21:32 -0200
User-agent: Mutt/1.7.1 (2016-10-04)

On Tue, Jan 17, 2017 at 10:42:32PM +0800, Dou Liyang wrote:
> As the commit a4088c3eecb5f said, In the cpu_synchronize_all_post_init(),
> we also use CPU_FOREACH macro to set all CPUs' namu_node.

I can't find commit a4088c3eecb5f, is it the commit ID of your
previous patch on your local tree? I don't see any NUMA-related
code triggered cpu_synchronize_all_post_init().

>                                                           So, we should
> make sure that we call it after Qemu has already initialied all the CPUs.

> 
> The patch move the numa_post_machine_init func in the appropriate
> location.

This patch moves cpu_synchronize_all_post_init(), not
numa_post_machine_init(). Could you describe which bug you are
fixing, exactly? It doesn't seem to be related to NUMA.

> 
> Signed-off-by: Dou Liyang <address@hidden>
> ---
>  vl.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/vl.c b/vl.c
> index f38b0e2..75adc2a 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -4547,8 +4547,6 @@ int main(int argc, char **argv, char **envp)
>  
>      audio_init();
>  
> -    cpu_synchronize_all_post_init();
> -
>      if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
>                            parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
>          exit(1);
> @@ -4570,6 +4568,8 @@ int main(int argc, char **argv, char **envp)
>          exit(1);
>      }
>  
> +    cpu_synchronize_all_post_init();
> +
>      numa_post_machine_init();
>  
>      rom_reset_order_override();
> -- 
> 2.5.5
> 
> 
> 

-- 
Eduardo



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