linux-kernel - Re: [PATCH v6 1/2] x86/kexec: Build identity mapping for EFI systab and ACPI tables

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Message-ID: <19532243-e02a-838a-732a-a47c15339dde@ce.jp.nec.com>
Date:   Wed, 15 May 2019 06:43:49 +0000
From:   Junichi Nomura <j-nomura@...jp.nec.com>
To:     Dave Young <dyoung@...hat.com>, Ingo Molnar <mingo@...nel.org>
CC:     Peter Zijlstra <peterz@...radead.org>, Baoquan He <bhe@...hat.com>,
        Borislav Petkov <bp@...en8.de>,
        "kasong@...hat.com" <kasong@...hat.com>,
        "fanc.fnst@...fujitsu.com" <fanc.fnst@...fujitsu.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "kexec@...ts.infradead.org" <kexec@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "hpa@...or.com" <hpa@...or.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>
Subject: Re: [PATCH v6 1/2] x86/kexec: Build identity mapping for EFI systab
 and ACPI tables

On 5/15/19 10:08 AM, Dave Young wrote:
> On 05/14/19 at 04:09pm, Ingo Molnar wrote:
>>> Hmm, it seems caused by some WIP branch patches, I suspect below:
>>> commit 124d6af5a5f559e516ed2c6ea857e889ed293b43
>>> x86/paravirt: Standardize 'insn_buff' variable names
>>
>> This commit had a bug which I fixed - could you try the latest -tip?
> 
> Will do, but I do not use tip tree often, not sure which branch includes
> the fix.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/
> Is it tip/master or tip/tip?

Just in case, when I tried tip/master, one of test machines crashed
in the same way as:
  https://lkml.org/lkml/2019/5/9/182

and I found this patch was needed:
  [PATCH] x86: intel_epb: Take CONFIG_PM into account
  https://lore.kernel.org/lkml/3431308.1mSSVdqTRr@kreacher/

-- 
Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd.