From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 D4407224B11 for ; Mon, 17 Feb 2025 16:25:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739809524; cv=none; b=rdgM932bus3FIKwol1bGyP9w3XsLVBUAdkHEv3vCCGUhQu81IInCJoD632VZVCjdrBrkRzIPAdqZQjdwABtIdo5hvtNv5GMr6m7kVfnSFpw/IJdclYmpqQFFbLHwxG+U7oOorcTIg3+aTtvWOif/c3ZchGW+noD31W7pCp+EvpU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739809524; c=relaxed/simple; bh=BO4L1pRp62bAhs0LkzpLl9uOty1wa60ovjsEiCzLG7E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=j052e2YkZa8ePSymlNF+9di5JDmA0tAXO2o3JA2zbDrlUHKFXJK5KXxSKQy0z1Dmvn6+AZTpEEsWBi74a3AIwSAYvIuZ9WAiXahQxox/vHrD4fOCirrE3hyRox2DZle/5m2R+jCoJwoispwRnPtVrIbEmn86BFYThQXkshJwN3Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=MEFH8r/u; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="MEFH8r/u" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1739809521; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QQDqUDWAAcTJbBVPTUGpb/vgmEjmwpVzrNnTKjOD+kw=; b=MEFH8r/uK0ODxux2NMpI/P29CRKfCr8JujbGixb6mf8qfKjLHkz031lHtkd21hLaMesCG7 2his2YXYj7uHEv2m0W4Eg1PGxbjjnQwGx7brXcitbcK7vxkh7H1hyLMX6d1sHSs1vprXL+ mRQyZYmQR/io11n9ZhKxEwXSmQvSVZM= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-77-JEmHaS2wPiqHBFFNayyOiA-1; Mon, 17 Feb 2025 11:25:20 -0500 X-MC-Unique: JEmHaS2wPiqHBFFNayyOiA-1 X-Mimecast-MFC-AGG-ID: JEmHaS2wPiqHBFFNayyOiA_1739809519 Received: by mail-wm1-f70.google.com with SMTP id 5b1f17b1804b1-4394c489babso24239915e9.1 for ; Mon, 17 Feb 2025 08:25:19 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739809519; x=1740414319; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=QQDqUDWAAcTJbBVPTUGpb/vgmEjmwpVzrNnTKjOD+kw=; b=Y4w6ZEY8m5dkZK4CM0rUIXSCnQQ8PhuE/DyEFWIZ/9RmTeY9PSV4nR04GXg/GRbpFC 4BUKikmnn5GzS9ufIt1ctjrNvcbxSy0J1euAgf+60Mxq/sNCO4UPrRUwye4IyQiUm0tH HdKh28uJwyWPRq2a39hg+pNHkpRnASnDkgN0oTsebVZ+tZcTJuTc3onXEKmomXBoMqhi auv1MgZDksSy80JS88unkY+b8ncGi2v2kqq7yz7djeekkEzNMivZ9D/e5XIbcGDDzpvV DmxISXp7s1y4FIy7X5XBKwuJDj5HKbE7Wm06MSKdSlLNigTRy7VVbjz7aUG/E36VgIcs 0INg== X-Forwarded-Encrypted: i=1; AJvYcCXghDySjj2Vekb380G247P9/gCe1ceUraLyuNs5BUH2dQ8lcM0YIRRzFLojZiRpQyVzEN/wsZysoK06yg==@vger.kernel.org X-Gm-Message-State: AOJu0YzQQ/pqX5c3PnZzxWMgzBm1rPaKuMa9g5sX/D0/1ZCy8ko4Lm6U zjNZdF/BpcxU7iNSi0Jyr68nKjAk6vEhQm7B1BCPfK4AeUY+Tse/1y167Dht4PXNrDOx3KnO6Jy Ypc9h4s/0nUY6m7QXHK0FDxpA0adxJ+o+H7tHWWEaSXDk3HQzGD28jAjLEAcz X-Gm-Gg: ASbGncua2Fiov/Ui0yca7Xs0BOoSFNdZ4tJQAObwJ535tEfjZjA5w3EmVj82Z4uZJQh 35APwnM/SPa2opJtAxDUbF6zJbQdoeQR75hmTesSgAKWDmp0MUi/FhRQ5TMxKDESmDhR7XCbClf A4hGUXQwe9ahnpcPFeqOdkVC3Fc6ML2KGoLev8voRRfzT2PxStsFdWhUL2Hyo4H2lig89boGGd4 iXJgrdidK1NtST8Z/40v9v3Nn1HGSCEDeChTte8TJLTS7FLeGoIlMKu73nH8+L2JFoALKggdOAJ mOK43/eLtsCFBnluHAXYrT/aJzI6gWA0PQ== X-Received: by 2002:a05:600c:1c28:b0:439:42c6:f11f with SMTP id 5b1f17b1804b1-4396e6ab033mr93371345e9.4.1739809518854; Mon, 17 Feb 2025 08:25:18 -0800 (PST) X-Google-Smtp-Source: AGHT+IFdXsc4MSLBBft4Feb9QxRjqSmU4xNnKee9CG5WxjCrosP0JLNdZXOOenoA8hq2EjCjj8zu4g== X-Received: by 2002:a05:600c:1c28:b0:439:42c6:f11f with SMTP id 5b1f17b1804b1-4396e6ab033mr93370965e9.4.1739809518532; Mon, 17 Feb 2025 08:25:18 -0800 (PST) Received: from jlelli-thinkpadt14gen4.remote.csb ([151.29.34.42]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4395a1aa7c7sm158655425e9.27.2025.02.17.08.25.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Feb 2025 08:25:17 -0800 (PST) Date: Mon, 17 Feb 2025 17:25:15 +0100 From: Juri Lelli To: Jon Hunter Cc: Christian Loehle , Dietmar Eggemann , Thierry Reding , Waiman Long , Tejun Heo , Johannes Weiner , Michal Koutny , Ingo Molnar , Peter Zijlstra , Vincent Guittot , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Phil Auld , Qais Yousef , Sebastian Andrzej Siewior , "Joel Fernandes (Google)" , Suleiman Souhlal , Aashish Sharma , Shin Kawamura , Vineeth Remanan Pillai , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, "linux-tegra@vger.kernel.org" Subject: Re: [PATCH v2 3/2] sched/deadline: Check bandwidth overflow earlier for hotplug Message-ID: References: <8ff19556-a656-4f11-a10c-6f9b92ec9cea@arm.com> <78f627fe-dd1e-4816-bbf3-58137fdceda6@nvidia.com> <30a8cda5-0fd0-4e47-bafe-5deefc561f0c@nvidia.com> <151884eb-ad6d-458e-a325-92cbe5b8b33f@nvidia.com> <371e6b88-e7d5-4e78-9468-33e29f7fdb53@nvidia.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <371e6b88-e7d5-4e78-9468-33e29f7fdb53@nvidia.com> On 17/02/25 16:10, Jon Hunter wrote: > > On 17/02/2025 16:08, Juri Lelli wrote: > > On 14/02/25 10:05, Jon Hunter wrote: > > > > ... > > > > > Sorry for the delay, the day got away from me. However, it is still not > > > working :-( > > > > Ouch. > > > > > Console log is attached. > > > > Thanks. Did you happen to also collect a corresponding trace? > > Sorry, but I am not sure exactly what trace do you want? Ah, sorry, I think I mentioned it somewhere else in this long thread. The idea would be to boot with something like "ftrace=nop trace_buf_size=50K" added to kernel cmdline. I would then try to offline CPUs 'manually' in the order suspend seems to be doing (starting from CPU5). Offlining CPU1 should still fail. At that point collect the trace with # cat /sys/kernel/debug/tracing/trace > trace.out and share it together with dmesg output as you have been doing so far. Thanks! Juri