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[217.62.96.139]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-62ebfe0ac03sm69476a12.16.2025.09.10.14.56.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Sep 2025 14:56:12 -0700 (PDT) Message-ID: <1206e86e-488c-4c58-9e67-2313a678a5a0@gmail.com> Date: Wed, 10 Sep 2025 23:56:11 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: richard@nod.at Cc: Liam.Howlett@oracle.com, akpm@linux-foundation.org, alexander.sverdlin@gmail.com, andreas@gaisler.com, ankur.a.arora@oracle.com, arnd@arndb.de, chester.a.unal@arinc9.com, christophe.leroy@csgroup.eu, dave@sr71.net, david@redhat.com, geert+renesas@glider.be, heiko@sntech.de, imx@lists.linux.dev, ira.weiny@intel.com, ksummit@lists.linux.dev, l.stach@pengutronix.de, linus.walleij@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, lorenzo.stoakes@oracle.com, nm@ti.com, rppt@kernel.org, sergio.paracuellos@gmail.com, surenb@google.com, vbabka@suse.cz, willy@infradead.org References: <640041197.22387.1757536385810.JavaMail.zimbra@nod.at> Subject: Re: [TECH TOPIC] Reaching consensus on CONFIG_HIGHMEM phaseout Content-Language: en-US From: =?UTF-8?Q?Ren=C3=A9_Herman?= In-Reply-To: <640041197.22387.1757536385810.JavaMail.zimbra@nod.at> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 0C30318000F X-Stat-Signature: czg9usw4ao6wjih6mo763iwx84gp4z3d X-Rspam-User: X-HE-Tag: 1757541374-123527 X-HE-Meta: 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 UiUHu8UX 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > In the past I saw that programs such as the Java Runtime (JRE) ran > into address space limitations due to a 2G/2G split on embedded > systems. Reverting to a 3G/1G split fixed the problems. Believe you guys are talking specifically ARM so FWIW, but I remember for x86 that at least initially Wine and things such as VMware were affected by the more creative PAGE_OFFSET choices. Both will have been as a matter of plain bugs and are supposedly long fixed (and I in fact believe I recall such fixing for VMware). Never had or as far as I recall heard of other issues back then. Rene.