linux-kernel - Re: [patch 00/29] x86/cpu: Rework the topology evaluation

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Message-ID: <08f1bbda-7d41-9b1b-c345-54f4c62ff976@intel.com>
Date:   Wed, 26 Jul 2023 16:27:47 -0700
From:   Sohil Mehta <sohil.mehta@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
CC:     <x86@...nel.org>, Tom Lendacky <thomas.lendacky@....com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        James Smart <james.smart@...adcom.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        <linux-scsi@...r.kernel.org>, <linux-hwmon@...r.kernel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Huang Rui <ray.huang@....com>,
        Guenter Roeck <linux@...ck-us.net>,
        Steve Wahl <steve.wahl@....com>,
        Mike Travis <mike.travis@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>
Subject: Re: [patch 00/29] x86/cpu: Rework the topology evaluation

On 7/26/2023 3:38 PM, Thomas Gleixner wrote:
> There is a real and unrelated snafu vs. that logical package and logical
> die management which I discovered today. I missed the fact that this
> cruft abuses cpuinfo as permanent storage, which breaks CPU
> offline/online as the online operation reinitializes the topology
> information.
> 
> I pushed out a fixed version to
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git x86/topology
> 
> earlier. It doesn't have a tag yet.
> 

Thanks, I'll try this out and experiment with CPU hotplug as well.

-Sohil