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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id t15-20020a508d4f000000b0054b82763574si7925113edt.322.2023.12.29.08.04.22 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Dec 2023 08:04:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-13154-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=emNh5KyN; spf=pass (google.com: domain of linux-kernel+bounces-13154-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-13154-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 am.mirrors.kernel.org (Postfix) with ESMTPS id EDC3C1F220B8 for ; Fri, 29 Dec 2023 16:04:21 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 79F5B125CD; Fri, 29 Dec 2023 16:04:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="emNh5KyN" X-Original-To: linux-kernel@vger.kernel.org Received: from mail-qv1-f49.google.com (mail-qv1-f49.google.com [209.85.219.49]) (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 5419C125B5; Fri, 29 Dec 2023 16:04:09 +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-f49.google.com with SMTP id 6a1803df08f44-67ff310622eso31876286d6.2; Fri, 29 Dec 2023 08:04:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1703865848; x=1704470648; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=rBveRZ/3Tcv6FNoUttsLq22QmNg6t9sbKYbxX1//L4o=; b=emNh5KyNyIdDFB4xjdHxGcH2w/dNzHUbALhdzwWQCD+4vucp+eIy1IQ/VizyslRXne /O1bkz129byrDSAd5PvJQWcFSOAqJ5eWnKPhv4OKdWDvqLGyb4DvWX2SNA2WmwO5+AOR ff++zBHZUXYnqb3dTV7OmHD+ldOWy0AeCWt2Tm3CcXqWY9ocYFOUp+F1RSEc4fROHaya Wa5vM6I/hCHkhByh+SH5bC3MCL+/7e9WmxzzjyFUTE4TAUuXAP9XKtMrh59Wm6rHVNAa sARI12S7U/S0VvKSODroOR69DtlriWUEP1U8wVrl3+JnSgPkPOj9AZwlju6nqnCcXeb2 eH9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703865848; x=1704470648; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=rBveRZ/3Tcv6FNoUttsLq22QmNg6t9sbKYbxX1//L4o=; b=WQp/6FRxQK2jfnn8HCs1tWO3wpgglziCL2kju/J/xWKo3fvybJ4THvymnoORxuLdwK mojgJYifqUOXsokrNbW8fpyYhPh4vRuoyFb8Q2rBi+nyRTAN/l38zziRiP0osXZyJVxo aj4DobdgJhtnwewkoH8BYyqkl7Kf4gXDmi7JdzUJdOx8qDNQ17XSyxY1/4th8qv+KI8n rKFQGpVrtIaJhvI8sVsabku3VYBqXmEGQi1AooVC6jGHtFU0bYxEAudQTw58Bf57xZIs nJAUXRCAjnmRtwH9jEWpT5ojZJ0Xn+sapFJ2H9+I2b7tSmBfZ5G0Uah4wlpOO4Gkd5li PzCA== X-Gm-Message-State: AOJu0YySRoseD4nppuMEPQui8e4r4x7pRguKoNLB4KVtN4bPFxTn/dCy BENcmZho3xo4YaXD04xnHwuWTRjZOCG1mB+vu6kCPlub X-Received: by 2002:a05:6214:20e5:b0:67e:f56c:b6c0 with SMTP id 5-20020a05621420e500b0067ef56cb6c0mr22707379qvk.60.1703865847746; Fri, 29 Dec 2023 08:04:07 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: In-Reply-To: From: Chris Rankin Date: Fri, 29 Dec 2023 16:03:56 +0000 Message-ID: Subject: Re: Does Linux still support UP? To: Pavel Machek Cc: LKML , netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Hi, I have already attached as much information as I am *ever* likely to be able to extract about this problem to the Bugzilla ticket. Cheers, Chris On Fri, 29 Dec 2023 at 15:41, Pavel Machek wrote: > > 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 > > Yes, UP should still work. I'm using such machine and intend to > continue with that. But it seems more testing would be welcome. > > And yes, you'll likely need to bisect. > > Best regards, > Pavel > > -- > People of Russia, stop Putin before his war on Ukraine escalates.