From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D48CDC433FB for ; Thu, 16 Jul 2020 00:27:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B36B8207CB for ; Thu, 16 Jul 2020 00:27:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594859271; bh=oSaYgjsR7WCqaMplPFHVreVXgOuBrajY9wLoEU5PPcE=; h=Date:From:To:To:To:Cc:Cc:Subject:In-Reply-To:References:List-ID: From; b=xLoEuD1dDiJAoCjI8kuGaled1tU2/x1bwSaL4yyzsfSg98hcPpuZC3s5g7qSkRT18 Ok3UMMqxC0+LOeO7JdONDSfYsojV3+2oGSKtC1jSEKUABPRNTHUll+DcQNL8m7wP3p rHuF9gr0UFfcM6S5gy/EvfmLsS9VxuOg9mq/VgMg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727910AbgGPA1u (ORCPT ); Wed, 15 Jul 2020 20:27:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:55236 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727915AbgGPA1q (ORCPT ); Wed, 15 Jul 2020 20:27:46 -0400 Received: from localhost (unknown [137.135.114.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B625720842; Thu, 16 Jul 2020 00:27:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594859265; bh=oSaYgjsR7WCqaMplPFHVreVXgOuBrajY9wLoEU5PPcE=; h=Date:From:To:To:To:Cc:Cc:Subject:In-Reply-To:References:From; b=doLwer/AfGZCxgx59REb7ZVTkPFG5qgmDNyVWx1IhLRWA/ep+LCtdm7syPz5984ZS p55cPMBfkSjWKG5ceHoM1sAN/icziKBHCFbDzmhloC4WGvQAIM9HXW9/etSFwf6Ds/ 5z41y8SEuQhlXUyOSbXEBEDJwiON5+7kIusCp1Bs= Date: Thu, 16 Jul 2020 00:27:45 +0000 From: Sasha Levin To: Sasha Levin To: Vincent Guittot To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com Cc: valentin.schneider@arm.com Cc: stable@vger.kernel.org Subject: Re: [PATCH v2] sched/fair: handle case of task_h_load() returning 0 In-Reply-To: <20200710082105.3809-1-vincent.guittot@linaro.org> References: <20200710082105.3809-1-vincent.guittot@linaro.org> Message-Id: <20200716002745.B625720842@mail.kernel.org> Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Hi [This is an automated email] This commit has been processed because it contains a -stable tag. The stable tag indicates that it's relevant for the following trees: 4.4+ The bot has tested the following trees: v5.7.8, v5.4.51, v4.19.132, v4.14.188, v4.9.230, v4.4.230. v5.7.8: Build OK! v5.4.51: Failed to apply! Possible dependencies: 0b0695f2b34a4 ("sched/fair: Rework load_balance()") 490ba971d8b49 ("sched/fair: Clean up asym packing") a349834703010 ("sched/fair: Rename sg_lb_stats::sum_nr_running to sum_h_nr_running") fcf0553db6f4c ("sched/fair: Remove meaningless imbalance calculation") v4.19.132: Failed to apply! Possible dependencies: 0b0695f2b34a4 ("sched/fair: Rework load_balance()") 1c1b8a7b03ef5 ("sched/fair: Replace source_load() & target_load() with weighted_cpuload()") 3b1baa6496e6b ("sched/fair: Add 'group_misfit_task' load-balance type") 4ad3831a9d4af ("sched/fair: Don't move tasks to lower capacity CPUs unless necessary") 575638d1047eb ("sched/core: Change root_domain->overload type to int") 630246a06ae2a ("sched/fair: Clean-up update_sg_lb_stats parameters") 6aa140fa45089 ("sched/topology: Reference the Energy Model of CPUs when available") 757ffdd705ee9 ("sched/fair: Set rq->rd->overload when misfit") a3df067974c52 ("sched/fair: Rename weighted_cpuload() to cpu_runnable_load()") cad68e552e777 ("sched/fair: Consider misfit tasks when load-balancing") dbbad719449e0 ("sched/fair: Change 'prefer_sibling' type to bool") e90c8fe15a3bf ("sched/fair: Wrap rq->rd->overload accesses with READ/WRITE_ONCE()") fdf5f315d5cfa ("sched/fair: Disable LB_BIAS by default") v4.14.188: Failed to apply! Possible dependencies: 0b0695f2b34a4 ("sched/fair: Rework load_balance()") 1c1b8a7b03ef5 ("sched/fair: Replace source_load() & target_load() with weighted_cpuload()") 2a2f5d4e44ed1 ("sched/fair: Rewrite cfs_rq->removed_*avg") 3b1baa6496e6b ("sched/fair: Add 'group_misfit_task' load-balance type") 7f65ea42eb00b ("sched/fair: Add util_est on top of PELT") 97fb7a0a8944b ("sched: Clean up and harmonize the coding style of the scheduler code base") a3df067974c52 ("sched/fair: Rename weighted_cpuload() to cpu_runnable_load()") cad68e552e777 ("sched/fair: Consider misfit tasks when load-balancing") d18be45dbfef2 ("sched/cpufreq: Split utilization signals") d4edd662ac165 ("sched/cpufreq: Use the DEADLINE utilization signal") f01415fdbfe83 ("sched/fair: Use 'unsigned long' for utilization, consistently") v4.9.230: Failed to apply! Possible dependencies: 3b1baa6496e6b ("sched/fair: Add 'group_misfit_task' load-balance type") 4eb5aaa3af8a5 ("sched/headers: Prepare for new header dependencies before moving code to ") 4f17722c7256a ("sched/headers: Prepare for new header dependencies before moving code to ") 555570d744f81 ("sched/clock: Update static_key usage") 5eca1c10cbaa9 ("sched/headers: Clean up ") 6e84f31522f93 ("sched/headers: Prepare for new header dependencies before moving code to ") 7f65ea42eb00b ("sched/fair: Add util_est on top of PELT") 983de5f97169a ("firmware: tegra: Add BPMP support") 9881b024b7d76 ("sched/clock: Delay switching sched_clock to stable") acb04058de494 ("sched/clock: Fix hotplug crash") ae7e81c077d60 ("sched/headers: Prepare for new header dependencies before moving code to ") b52992c06c902 ("drm/i915: Support asynchronous waits on struct fence from i915_gem_request") ca791d7f42563 ("firmware: tegra: Add IVC library") e601757102cfd ("sched/headers: Prepare for new header dependencies before moving code to ") ea8b1c4a6019f ("drivers: psci: PSCI checker module") ee6a3d19f15b9 ("sched/headers: Remove the include from ") fd7712337ff09 ("sched/headers: Prepare to remove the include from ") v4.4.230: Failed to apply! Possible dependencies: 051f263098a90 ("IB/mlx5: Add driver cross-channel support") 146d2f1af3245 ("IB/mlx5: Allocate a Transport Domain for each ucontext") 2811ba51b0495 ("IB/mlx5: Add RoCE fields to Address Vector") 37aa5c36aa70c ("IB/mlx5: Add UARs write-combining and non-cached mapping") 3b1baa6496e6b ("sched/fair: Add 'group_misfit_task' load-balance type") 3cca26069a4b7 ("IB/mlx5: Support IB device's callbacks for adding/deleting GIDs") 3f89a643eb295 ("IB/mlx5: Extend query_device/port to support RoCE") 5eca1c10cbaa9 ("sched/headers: Clean up ") 6e84f31522f93 ("sched/headers: Prepare for new header dependencies before moving code to ") 7c2344c3bbf97 ("IB/mlx5: Implements disassociate_ucontext API") 7f65ea42eb00b ("sched/fair: Add util_est on top of PELT") a8c21a5451d83 ("drm/etnaviv: add initial etnaviv DRM driver") a9709d6874d55 ("vhost: convert pre sorted vhost memory array to interval tree") b368d7cb8ceb7 ("IB/mlx5: Add hca_core_clock_offset to udata in init_ucontext") cfb5e088e26ae ("IB/mlx5: Add CQE version 1 support to user QPs and SRQs") d69e3bcf79764 ("IB/mlx5: Mmap the HCA's core clock register to user-space") ebd61f68e1c79 ("IB/mlx5: Support IB device's callback for getting the link layer") ee6a3d19f15b9 ("sched/headers: Remove the include from ") fc24fc5e9530a ("IB/mlx5: Support IB device's callback for getting its netdev") fd7712337ff09 ("sched/headers: Prepare to remove the include from ") NOTE: The patch will not be queued to stable trees until it is upstream. How should we proceed with this patch? -- Thanks Sasha