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[147.75.199.223]) by mx.google.com with ESMTPS id k15-20020a05620a0b8f00b00781223ec582si1679867qkh.417.2023.12.21.15.12.58 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Dec 2023 15:12:59 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-9153-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=gvjjT3V4; spf=pass (google.com: domain of linux-kernel+bounces-9153-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-9153-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id D94851C245B2 for ; Thu, 21 Dec 2023 23:12:58 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D9BCA79478; Thu, 21 Dec 2023 23:12:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gvjjT3V4" X-Original-To: linux-kernel@vger.kernel.org Received: from mail-qv1-f42.google.com (mail-qv1-f42.google.com [209.85.219.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C480378E9C; Thu, 21 Dec 2023 23:12:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-qv1-f42.google.com with SMTP id 6a1803df08f44-67ac0ef6bb8so6484276d6.1; Thu, 21 Dec 2023 15:12:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1703200365; x=1703805165; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=RwWjnQ9Plt1oqDMzGG0AXj2S4ylf5A0WSUb1d1LBEOk=; b=gvjjT3V45phMaW0h+RLLx8XWYG89gZXO4kq/Oskclm2ziRyeZW6y4p1CKfAswn/9zG J3gkN49FnYbHQWI1cdg2GtBcT0LRQ/gGXfI61Ozf9W+rAUdlN8ZGPJHBy5Z752H1sKxC AWUjMfU1zuTjF/3QANlNJPm42h4QgK8JfBUXK0p7B39l/zI7AnlAQRQ4mTHso7u8QtPS vxC8tWq3ViiXgP1FraEiFtFr0s+Jz7bNEuBXAdVz6zy3gmCgnW+EpRVpqt7d+fokj8se Lo2n1TohuZGOCnQ6i3bBNbzHIwgbU5ClrL8B2ZbZwuGMwrHLFnlHxaI2UEyWVvoGQbGR eMqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703200365; x=1703805165; h=cc:to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=RwWjnQ9Plt1oqDMzGG0AXj2S4ylf5A0WSUb1d1LBEOk=; b=CKqqjj0j9iLiYvYJs2/YaS2orsjoumwsiZnKDzPMNly1YR1E8VqRrV5kIig51zpOa9 srKBU0JnlhbLWvf113ngDd6L63Mc5MK2M1rkFtyF6hQL0mlPltcjvEpJdiGTOVPFl9Cw 5t437H+QkuJmmTut9uGa0Mo/tAzgWoWlwo33dRPWy87DMuiE563g/6Mfsocdwf0M21s9 lFeh8OfkM22jJCCu8fByU7cFDvC1CH2ro6amGHy5jMXL02EjXorXx+t6PJTnu8B5VQZ4 CrfnD+dV1M055xmpQbNoaKvjXUGKu+eY+HvD/OYt3gs4wTeguIxKxfKwatbxNHPjiqSH 88Ow== X-Gm-Message-State: AOJu0YxbE28hwmGlLHJVQzoc7kj6jvyu7cR1UxYxEwtZIbBkmdyVV6Pg QunoufsmS0eA5DQFgxa59ga/Ii0q7ctMRxOTllMiaiHI8CA= X-Received: by 2002:a05:6214:ac5:b0:67a:cd6a:754c with SMTP id g5-20020a0562140ac500b0067acd6a754cmr717679qvi.33.1703200365383; Thu, 21 Dec 2023 15:12:45 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Chris Rankin Date: Thu, 21 Dec 2023 23:12:34 +0000 Message-ID: Subject: Does Linux still support UP? To: LKML Cc: netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Hi, I have an ancient i586 UP machine that happily runs vanilla Linux 6.4.16, but which locks up shortly after booting vanilla 6.5.0. The kernel *seems* to run into trouble as soon as the networking layer becomes busy. However, its SysRq-S/U/B sequence still seems to work as expected and so obviously *something* is still responding somewhere. This problem still exists in vanilla 6.6.8. FWIW I have raised this bug in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=218296 Thanks for any help here, Cheers, Chris