Re: [PATCH 1/2] x86, numa: always initialize all possible nodes
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- To: Barret Rhoden <brho@xxxxxxxxxx>
- Subject: Re: [PATCH 1/2] x86, numa: always initialize all possible nodes
- From: Michal Hocko <mhocko@xxxxxxxxxx>
- Date: Thu, 2 May 2019 09:00:31 -0400
- Cc: linux-mm@xxxxxxxxx, Pingfan Liu <kernelfans@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, x86@xxxxxxxxxx, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>
- In-reply-to: <34f96661-41c2-27cc-422d-5a7aab526f87@google.com>
- References: <20190212095343.23315-1-mhocko@kernel.org> <20190212095343.23315-2-mhocko@kernel.org> <34f96661-41c2-27cc-422d-5a7aab526f87@google.com>
- User-agent: Mutt/1.10.1 (2018-07-13)
On Wed 01-05-19 15:12:32, Barret Rhoden wrote:
[...]
> A more elegant solution may be to avoid registering with sysfs during early
> boot, or something else entirely. But I figured I'd ask for help at this
> point. =)
Thanks for the report and an excellent analysis! This is really helpful.
I will think about this some more but I am traveling this week. It seems
really awkward to register a sysfs file for an empty range. That looks
like a bug to me.
--
Michal Hocko
SUSE Labs
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