From mboxrd@z Thu Jan  1 00:00:00 1970
From: laurent.navet@gmail.com (Laurent Navet)
Date: Sat, 10 Mar 2018 14:45:23 +0100
Subject: Where is the __per_cpu_offset array initialized??
In-Reply-To: <tencent_12C610A3127E597E037FA984683F9C079C07@qq.com>
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Message-ID: <CAH7P7NjJ_9bV_BM3=ySxMYK-fww=tPfQed0UZ=jyOoR8KMXD3g@mail.gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

Hi Larry,

> Does anyone can tell me where the array __per_cpu_offset is initialized on
> x86_64 arch,
> I remembered it was initialized in function setup_per_cpu_areas,
> but it seems that it is not the case on x86-64 arch.

It seems your memory is right and code is shared with x86.
https://elixir.bootlin.com/linux/latest/source/arch/x86/kernel/setup_percpu.c#L29

Laurent.
-- 
? On ne r?sout pas un probl?me avec les modes de pens?e qui l?ont engendr?. ?
? You cannot solve a problem with the same thinking that created it. ?