From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E607F37755D; Fri, 30 Jan 2026 12:26:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769775988; cv=none; b=Katec0p+exFBNl2l2zWkXKR/g/NqQ4riEdCJrMvaQm4h6E2nfj+jT34+6LGj5Pp80SRPfaKR1ZuG1a3iL0LMbqrxLhY1LtOmdn4NTFkUx9VWbJ1k3HngqnWIA67WxdFFVl0JLk/IhPexIglbIRm9zJ/CSx+W18xxyIE/cjGHUo4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769775988; c=relaxed/simple; bh=8NQTKZwdow21N+NI77FucccdUADGupKpYzFN0YYpVwM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=NeDKHnK5kYt/uXKJdlIWoFF+29/vuoRoB12o/PM0ofx/TNRitkPdDBqerYjIwRIdB4pgKCTFwxwsrV/Ycj1Z27d0bR8VjLua7q/iEFgbjItvzPjO9uauOSHB698RyK22von9t04A7wNlk5vzC3jsn7mILwoNwo4gg4OciNcPJJY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=Zl3zlyOR; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Zl3zlyOR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=fx+L9xs+ikPHiKEKkkUpgHA7pxhB9kWRY8VYwrtKJbE=; b=Zl3zlyORVPXRJbCU4yYM69aIfs kqvJzT238qG7OZ11WQs8cmEWqsAF46slILC5TVtA/dTlTUjahmydH+MDLAXzH6sh3iuhnEmD1Bj2R WKOR7Bm1uWus6sDvNu/ty9KZZLzhCXuhgMsboUCm4eKZsCvdKiB2Z8tfsnVYC16iQCAV4Md40wK0O /nWYGRTp+6FMoOpK3ieRKCQ1umWiQdMAdPRwPIaMqnykVt7pc4jOu5ZK2bJsWyj5+yGz7s59zWGiu teL3MIG+ZsE0y/DuJ3WU0hEAOXp0rf5hev6AzswYLCxD8ieX3sp9dTTG9pUzJ2cf8GlRuVSSLq1v4 CggphMhQ==; Received: from 2001-1c00-8d85-5700-266e-96ff-fe07-7dcc.cable.dynamic.v6.ziggo.nl ([2001:1c00:8d85:5700:266e:96ff:fe07:7dcc] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1vlnZs-0000000Bm88-2laK; Fri, 30 Jan 2026 12:26:21 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 12D7630331F; Fri, 30 Jan 2026 13:26:20 +0100 (CET) Date: Fri, 30 Jan 2026 13:26:20 +0100 From: Peter Zijlstra To: Andrea Righi Cc: Gabriele Monaco , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Tejun Heo , Joel Fernandes , David Vernet , Changwoo Min , Daniel Hodges , sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] sched/deadline: Reset dl_server execution state on stop Message-ID: <20260130122620.GB1079264@noisy.programming.kicks-ass.net> References: <9b8c90b1-9247-4159-9bf6-72bd71bb74a2@redhat.com> <45e4dc7a-f261-46ec-8973-0fb8d1f7b0b9@redhat.com> <20260130122413.GA3306656@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: sched-ext@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260130122413.GA3306656@noisy.programming.kicks-ass.net> On Fri, Jan 30, 2026 at 01:24:13PM +0100, Peter Zijlstra wrote: > On Wed, Jan 28, 2026 at 02:41:40PM +0100, Andrea Righi wrote: > > > Just to make sure we're testing the same thing, I'm currently using > > https://git.kernel.org/pub/scm/linux/kernel/git/arighi/linux.git, branch > > scx-dl-server. > > > > I'm running this test inside virtme-ng: > > $ vng -vb --config tools/testing/selftests/sched_ext/config > > $ vng -v -- tools/testing/selftests/sched_ext/runner -t rt_stall > > Apparently you also have to actually have that runner thing built from > that tree. > > Anyway, all I seem to be able to get (on x86) is PASS: 1 :/ Argh, that tree has the dodgy 'fix' in. Let me go revert that.