From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Date: Tue, 21 Dec 2021 23:23:38 +0100 From: Borislav Petkov Subject: Re: [PATCH v17 03/10] x86: kdump: use macro CRASH_ADDR_LOW_MAX in functions reserve_crashkernel() Message-ID: References: <20211210065533.2023-1-thunder.leizhen@huawei.com> <20211210065533.2023-4-thunder.leizhen@huawei.com> <20211216011040.GG3023@MiWiFi-R3L-srv> <9513d74c-d4c7-babd-f823-8999e195d96d@huawei.com> <35810a61-604e-9b90-2a7f-cfca6ae042ac@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: "Leizhen (ThunderTown)" Cc: Baoquan He , Thomas Gleixner , Ingo Molnar , x86@kernel.org, "H . Peter Anvin" , linux-kernel@vger.kernel.org, Dave Young , Vivek Goyal , Eric Biederman , kexec@lists.infradead.org, Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Jonathan Corbet , linux-doc@vger.kernel.org, Randy Dunlap , Feng Zhou , Kefeng Wang , Chen Zhou On Fri, Dec 17, 2021 at 10:51:04AM +0800, Leizhen (ThunderTown) wrote: > [KNL, X86-64], This doc is for X86-64, not for X86-32 reserve_crashkernel() runs on both. > If there is no such restriction, we can make CRASH_ADDR_LOW_MAX equal > to (1ULL << 32) minus 1 on X86_32. Again, the 4G limit check is relevant only for 64-bit kernels - not 32-bit ones. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec