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[71.184.117.43]) by smtp.gmail.com with ESMTPSA id c14sm9461289qta.80.2019.10.07.15.50.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Oct 2019 15:50:17 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [PATCH] shmem: add shmem_size option, set filesystem size Date: Mon, 7 Oct 2019 18:50:17 -0400 Message-Id: References: <20191007223235.GA22291@spider> Cc: Hugh Dickins , linux-mm@kvack.org In-Reply-To: <20191007223235.GA22291@spider> To: "Gary B. Genett" X-Mailer: iPhone Mail (17A860) X-Bogosity: Ham, tests=bogofilter, spamicity=0.003502, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: > On Oct 7, 2019, at 6:32 PM, Gary B. Genett wrote: > > A specific case where this is necessary would be if the initramfs were > larger than half of the memory, such as a 2.5GB filesystem with 4GB of > memory. Without this option, this causes a kernel panic. With this > option, the user may specify something like 75%, which would allow the > filesystem into memory, while still leaving enough resources to run > a functioning system. Why would anyone need such a large an initramfs?