linux-kernel - Re: [PATCH v4 00/10] PCID and improved laziness

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Message-ID: <CA+55aFyXuKacpuzPhNtnUkOtXKmKAF3vEyVtCtFXpWTH7LZDoQ@mail.gmail.com>
Date:   Wed, 5 Jul 2017 09:53:55 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Andy Lutomirski <luto@...nel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mel Gorman <mgorman@...e.de>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Nadav Amit <nadav.amit@...il.com>,
        Rik van Riel <riel@...hat.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v4 00/10] PCID and improved laziness

On Wed, Jul 5, 2017 at 1:56 AM, Ingo Molnar <mingo@...nel.org> wrote:
>
> If it's all super stable I plan to tempt Linus with a late merge window pull
> request for all these preparatory patches. (Unless he objects that is. Hint, hint.)

I don't think I'll object. At some point the best testing is "lots of users".

TLB issues are a bitch to debug, but at the same time this is clearly
a "..but at some point we need to bite the bullet" case. I doubt the
series is going to get a lot better.

But yes, please do give it as much testing as humanly possible even
without the wider coverage by random people.

               Linus