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 06DE41DDC2A; Thu, 11 Sep 2025 14:00:31 +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=1757599233; cv=none; b=tc5K96kUH/E2JqQv5dYlwYF+KlzXiYwtn03ty+1s293bSQjYqrIHrC9wAPpfVV5zddy1uFL1y22fXGpeCvt85NkCVk2iYglazc2wzxIkdBXzi4OUtwFhkpIF00qodWoMAUgwKJUm5I7hNU8CU6Tj4A7WULWYswK43VNAEeZweL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757599233; c=relaxed/simple; bh=55zpazCCMP2oFH25Rqs2CNOCEeUKaRY0T3UNFZs9Zeo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lQcfLUDz9KHZV9nQtPda7C2vvDPzkZ1yctJ+zbiIbQMKXYgA8uO283DdhAIJT8S5cXownoD8vJxqu56Kgz3cvcGx2JCnbYS5rkKO4YOb18m42HK3qfph9h4fUlxfxDHmNJRYjZdh6PxcPgRaE3/yShLmFL5zZ97mO1mqZgx5LPM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (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=CEoAUwYL; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (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="CEoAUwYL" 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=+lPlOJZkhxv3+mEYGk4dl29iQABbroVsY9HmEsd9duw=; b=CEoAUwYLN8Qen8sLT8D+l4Cc8x ABgubo7fBj/ch+9Ic5/gpegVOK112RyN0U/4QPYBeqgGNZTBYX7kJuNdvsnetcmO8y6vCO5z/xcUt c7ARxyrV6QZrmqiDufg7UBqys9FV43iH1SrTt6nPBr5TRjVJhMJwn7FmFSGFIsWdO19QmSIn0gwyg YjvnWtoke/BqIHyQmsOALTOSNHGkDw8somAgdWAiq/xmF898D6YC+pIKpq9r9eXpbw9pLKWC/Y343 Fo/eKyGhT/ANuYCXirQ0zyXEz0/L8+i7zXJMzVgCei0UedNKGfXaTW23OH6sUbhy2YCKJbb5+qTx4 5ojqLuEw==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1uwhqY-00000006616-34V1; Thu, 11 Sep 2025 14:00:23 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 494CA300579; Thu, 11 Sep 2025 16:00:22 +0200 (CEST) Date: Thu, 11 Sep 2025 16:00:22 +0200 From: Peter Zijlstra To: Andrea Righi Cc: tj@kernel.org, linux-kernel@vger.kernel.org, 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, longman@redhat.com, hannes@cmpxchg.org, mkoutny@suse.com, void@manifault.com, changwoo@igalia.com, cgroups@vger.kernel.org, sched-ext@lists.linux.dev, liuwenfang@honor.com, tglx@linutronix.de Subject: Re: [PATCH 00/14] sched: Support shared runqueue locking Message-ID: <20250911140022.GP4067720@noisy.programming.kicks-ass.net> References: <20250910154409.446470175@infradead.org> 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: On Wed, Sep 10, 2025 at 07:32:12PM +0200, Andrea Righi wrote: > Reproducer: > > $ cd tools/sched_ext > $ make scx_simple FWIW, I only have one machine where this works. Most of my machines this results in an endless stream of build fail; same for the selftest stuff. No clues given, just endless build fail :-(