linux-kernel - Re: [PATCH v15 00/23] Generic page walk and ptdump

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Message-Id: <A1E27467-83D7-4D36-A029-31649417248E@lca.pw>
Date:   Thu, 5 Dec 2019 09:38:17 -0500
From:   Qian Cai <cai@....pw>
To:     Thomas Hellstrom <thellstrom@...are.com>
Cc:     "Steven.Price@....com" <Steven.Price@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "ard.biesheuvel@...aro.org" <ard.biesheuvel@...aro.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "david@...hat.com" <david@...hat.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "James.Morse@....com" <James.Morse@....com>,
        "x86@...nel.org" <x86@...nel.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "Mark.Rutland@....com" <Mark.Rutland@....com>,
        "jglisse@...hat.com" <jglisse@...hat.com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "luto@...nel.org" <luto@...nel.org>, "bp@...en8.de" <bp@...en8.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "hpa@...or.com" <hpa@...or.com>, "arnd@...db.de" <arnd@...db.de>,
        "kan.liang@...ux.intel.com" <kan.liang@...ux.intel.com>,
        "will@...nel.org" <will@...nel.org>
Subject: Re: [PATCH v15 00/23] Generic page walk and ptdump



> On Dec 5, 2019, at 9:32 AM, Thomas Hellstrom <thellstrom@...are.com> wrote:
> 
> On Thu, 2019-12-05 at 08:15 -0500, Qian Cai wrote:
>>> On Dec 4, 2019, at 11:32 AM, Steven Price <Steven.Price@....com>
>>> wrote:
>>> 
>>> I've bisected this problem and it's a merge conflict with:
>>> 
>>> ace88f1018b8 ("mm: pagewalk: Take the pagetable lock in
>>> walk_pte_range()")
>> 
>> Sigh, how does that commit end up merging in the mainline without
>> going through Andrew’s tree and missed all the linux-next testing? It
>> was merged into the mainline Oct 4th?
> 
> It was acked by Andrew to be merged through a drm tree, since it was
> part of a graphics driver functionality. It was preceded by a fairly
> lenghty discussion on linux-mm / linux-kernel.
> 
> It was merged into drm-next on 19-11-28, I think that's when it
> normally is seen by linux-next. Merged into mainline 19-11-30. Andrew's
> tree got merged 19-12-05.

Ah, that was the problem. Merged into the mainline after only a day or two
showed up in the linux-next. There isn’t enough time for integration testing.

> 
> linux-next signaled a merge conflict from one of the patches in this
> series (not this one) resolved manually with the akpm tree on 19-12-02.
> 
> Thomas
> 
> 
> 
> 
> 
>