From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 387AB3CD8CC for ; Fri, 28 Aug 2026 07:56:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787903810; cv=none; b=Y1wH+2vCwMUczCeh2m7IKySksO8IRiEreCLSwUUmQJzNOvKPWe2a+9QPQ6ghCUu7eYEMEon36B+DDKfrKB2wJLU47PF8ox6TgXrmTyn+EHzOyT78hJctl61efgiQl3mgNU8jXHJyvNkZMecKBHaaCkNCpX0GwTaanEgkPdlGZo8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787903810; c=relaxed/simple; bh=QTE+weV8FORXmDjutHJpj9ddtjc1IswlBjhdVmtH9fo=; h=Message-ID:Date:From:To:Cc:Subject; b=S7s3dCeHlbMMPAQkA466RGSo4a1+290la3A+58cKys0tQXPx9uUDK7KEGKcbHbqVqla5HeNSW8tgKwN9++b/8Cu8afP9qECSskuaR1AnOHZ8tICjyneVwZ3qGZBRVD9aHfEmZTQVlqytzq6Qy0Bgi1dWfZw6j8iXrLhTvrlRZtk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=jWrmYqXb; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass 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="jWrmYqXb" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=QTE+weV8FORXmDjutHJpj9ddtjc1IswlBjhdVmtH9fo=; b=jWrmYqXbyBYXMuywaA9r4Nq6ma LdOFdRbzHyCbb0h84IQwf3uN2p4gfbivnQzMmesfv5RSihNSgVp6PATxrpi7om9Jps2Rls8Ft5i7z C5dF0VzeX0O+L7/7ARW7L0+U7hYIJ8eiJ4UGagqrDzB5uv/4gfUtgAZUaKM4iyLoR3KJ1Hb8+C3lN oapIcDDcMCPlU+DbMS3sSidAsn67gm9k3OrmEtg/sB1TOxBP8V2WLuJ5UA4fNu8K7UI7uOjDCH8YJ 9hSZHYn/JF7FidQBysgDM/TVtjNqe7znZ65vN6dlOFYQXVBxLfltMxqPmiAFvnuwuDZJOFoC5LY4z gXB5TNDA==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1wzrS1-0000000EGKJ-0tDO; Fri, 28 Aug 2026 07:56:37 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 0) id 38A823006DD; Fri, 28 Aug 2026 09:56:36 +0200 (CEST) Message-ID: <20260828074059.232353141@infradead.org> User-Agent: quilt/0.68 Date: Fri, 28 Aug 2026 09:40:59 +0200 From: Peter Zijlstra To: mingo@kernel.org Cc: peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, kprateek.nayak@amd.com, tj@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] sched/fair: Rework tash_h_load() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hi! So task_h_load() has been known buggered for a while [1], and while looking at [2] I ran into it again. These few patches rework the thing and should hopefully result in less broken behaviour. Lightly tested... [1] email that unfortunately ended up private with Vincent [2] https://lore.kernel.org/all/aoxah90s0bQ4tcUW@three-body/