linux-kernel - Re: [PATCH 1/1] kernel/crash_core.c - Add crashkernel=auto for x86 and ARM

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Message-ID: <CAHD1Q_yB1B4gu7EDqbZJ5dxAAkr-dVKa9yRDK-tE3oLeTTmLJQ@mail.gmail.com>
Date:   Sun, 22 Nov 2020 12:32:06 -0300
From:   Guilherme Piccoli <gpiccoli@...onical.com>
To:     Kairui Song <kasong@...hat.com>, Dave Young <dyoung@...hat.com>
Cc:     Saeed Mirzamohammadi <saeed.mirzamohammadi@...cle.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        linux-doc@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        "H. Peter Anvin" <hpa@...or.com>, Will Deacon <will@...nel.org>,
        Anson Huang <Anson.Huang@....com>,
        Jonathan Corbet <corbet@....net>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Vivek Goyal <vgoyal@...hat.com>,
        John Donnelly <john.p.donnelly@...cle.com>,
        Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-arm-kernel@...ts.infradead.org, Baoquan He <bhe@...hat.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        kexec mailing list <kexec@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "# v4 . 16+" <stable@...r.kernel.org>,
        Li Yang <leoyang.li@....com>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Diego Elio Pettenò <flameeyes@...meeyes.com>,
        Olof Johansson <olof@...om.net>,
        Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH 1/1] kernel/crash_core.c - Add crashkernel=auto for x86
 and ARM

Hi Dave and Kairui, thanks for your responses! OK, if that makes sense
to you I'm fine with it. I'd just recommend to test recent kernels in
multiple distros with the minimum "range" to see if 64M is enough for
crashkernel, maybe we'd need to bump that.
Cheers,


Guilherme