From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-244106.protonmail.ch (mail-244106.protonmail.ch [109.224.244.106]) (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 E855725BADE for ; Tue, 25 Mar 2025 15:12:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=109.224.244.106 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742915566; cv=none; b=QctLb+O8ILHzoptR+5SUeJZRbH+dceaa7mBNGpQPNbcOheSs3NSvePWgsNk82uS7/Jh6mPwAi4TkCp5Pkf14kmsVwxEaIe8GXYETlfvGe2ofz1Sj3Na0dgtVvLgsCkWzvT8U9TL/iI8LdLtCfKU9Vr3N0pq03mmFQDG4w/aC0b0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742915566; c=relaxed/simple; bh=1SMaNcgHDnVkPByJAs8xbaa1v3T/Chn2e5uxDku/NbM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=nacHQNxSScM2BibaOXz4wb+VzclcwH27Kk1BvzGKaKNHBJ+pBbUkxI5cFRrrkskmtMWNFcDKy5oC7gtbN4/WcEo0AjTPEGh0HOmd4Ol+gBuCcpcXSjhs0SNQNxsuQLc3kyLxpq+uGZo1cOuhrgULlcRKLoZMu3gPCn0oOODti84= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=patcody.io; spf=pass smtp.mailfrom=patcody.io; dkim=pass (2048-bit key) header.d=patcody.io header.i=@patcody.io header.b=bLSCSjvW; arc=none smtp.client-ip=109.224.244.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=patcody.io Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=patcody.io Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=patcody.io header.i=@patcody.io header.b="bLSCSjvW" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=patcody.io; s=protonmail; t=1742915553; x=1743174753; bh=DhNFLl2UgqhpiFGUc9+LyKLooe2GHvyl/+zO4fJQcMw=; h=Date:From:To:Cc:Subject:Message-ID:References:In-Reply-To:From:To: Cc:Date:Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector: List-Unsubscribe:List-Unsubscribe-Post; b=bLSCSjvWArxRNrI152xTD8OPQiNplvlNX+Ibg6H4TvMzi70ilPPIdl4/+IWSR/sjB ymrmKO9oO7SwJM7yPYisaQpPqv3q6zeaQD+qDWlSTg2XRXsr4R/m8zvNlw5Q4ED+6f F+yH6yRlxgV88GI1PdgCsu3oA+EYZaek52lNmiVuAZcV7Oks7MRmmUETLYVcVj2Ikk mCMyKBICFb1Ab/wJ9aoszAhlKCnnz5yHkPvpn/hwkxwYz9Cylqrvyq6Wtf8Zn50+ea k+FEC4PnMQlqTSRaviTVHFa/EQ8C6aEgPqqBDQiTo0v/qlb1KwGORfO83Lji3zgPmi U1O82I3K1Admw== X-Pm-Submission-Id: 4ZMYLl6FCWz3LT Date: Tue, 25 Mar 2025 08:12:30 -0700 From: Pat Cody To: Peter Zijlstra Cc: mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, linux-kernel@vger.kernel.org, riel@surriel.com, patcody@meta.com, kernel-team@meta.com, stable@vger.kernel.org Subject: Re: [PATCH] sched/fair: Add null pointer check to pick_next_entity() Message-ID: References: <20250320205310.779888-1-pat@patcody.io> <20250324115613.GD14944@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: linux-kernel@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: <20250324115613.GD14944@noisy.programming.kicks-ass.net> On Mon, Mar 24, 2025 at 12:56:13PM +0100, Peter Zijlstra wrote: > Does something like: > > https://lkml.kernel.org/r/20250128143949.GD7145@noisy.programming.kicks-ass.net > > help? To clarify- are you asking about if we've tried reverting 4423af84b297? We have not tried that yet. Or if we've included "sched/fair: Adhere to place_entity() constraints", which we have already done- https://lore.kernel.org/all/20250207-tunneling-tested-koel-c59d33@leitao/