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Date:      Thu, 22 Mar 2018 07:16:14 +1100
From:      andrew clarke <mail@ozzmosis.com>
To:        "Derek (freebsd lists)" <482254ac@razorfever.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: freebsd-update: holding back patches, or to a specific version
Message-ID:  <20180321201614.j2accawaarwar6nm@ozzmosis.com>
In-Reply-To: <60d4bfc4-0cd5-74b0-41e9-bfab22d66e6d@razorfever.net>
References:  <50c78b4c-2832-acb2-4810-13f45794870c@razorfever.net> <44in9xf2ir.fsf@lowell-desk.lan> <391ff7b9-c340-3286-158b-20c7a2022bd0@chezmarcotte.ca> <60d4bfc4-0cd5-74b0-41e9-bfab22d66e6d@razorfever.net>

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On Fri 2018-03-16 05:44:54 UTC-0400, Derek (freebsd lists) (482254ac@razorfever.net) wrote:

> Yup - freebsd-update -r 11.1-RELEASE upgrade will take me to -p8, but I
> *definitely* want -p7, until I can adequately assess the impact of -p8 (and
> maybe let it bake for a bit).
> 
> Any other thoughts out there?

I don't think you can do what you want with freebsd-update.

>From what I understand, the following in /boot/loader.conf will disable the
Spectre/Meltdown mitigation code in -p8.

vm.pmap.pti="0"
hw.ibrs_active="0"



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