From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9B81F31A7F4; Fri, 14 Nov 2025 13:52:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763128369; cv=none; b=iBEDA4vfeiYwWr8nGeI+IXhbsLPEtXzQhN8KWRksBong3zM1ik+GGSAI34r5w1hZIt3Ab9PaatqeaDHDURTiEmlByCPAOLh2CbFwptfv8MuLet30FrnHJ6AOXVfT1IRoDXtPBDbsLAYTsP6huuHbkRtoi3FUN93eZ2wX1DsjnKw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763128369; c=relaxed/simple; bh=ZDcIMy5sJDh7Zd9t/JkS0yqTI6oRcEcKGLARvB/NXfg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tuUBg8TzPzLmLpm7++k+W0JQvFvCY4RSM4hmHclwEWJqDU1mV9NkYXpOeZf6ajiHLj7Odd6vI43YfpSt2CKkOFf4XgUbbUUEtBZKMP2VGy8Zuy68OfU4FlcQU9auMYNMW0QWKSS8mFn4EH6z3dBN1RErApA8n0tCoHLg22q226Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZZrF8arW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZZrF8arW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 170A5C4CEF8; Fri, 14 Nov 2025 13:52:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763128369; bh=ZDcIMy5sJDh7Zd9t/JkS0yqTI6oRcEcKGLARvB/NXfg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZZrF8arWe/BMEjtjGk+U8nhkK7gio4wcNf9rzjGbwVayfz7yGBCjNY80Sl4w77fxm 5Fnb8jfVvC6XSlQ86UzQUjk8xuPmfmcgZAkVZsF56tZtJdtw8uzH+ve7uzGMm2w/14 s+mvIfI4/PdJ/MWGDOr8XdDp9Q9OrPNXzA/N5kHLrcR1+kf9KGXWYlzyUXDgRqYeb/ pPq3Bs7G8bgbCtK2sUzcf0QBLeyeIQWStcMar4ZIg24sR7Wk1Zp5legbLPd3yuUfGx UNtYs+3feh85gzr1qGbYftUTXfSARKRDlctAbPw7F46UZEwHGx6raga3rSRYtxeIPw 0Y5oq4V4qYudQ== Date: Fri, 14 Nov 2025 03:52:44 -1000 From: Tejun Heo To: kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, Dan Schatzberg , Peter Zijlstra , Andrea Righi , sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [tj-sched-ext:for-next] [sched_ext] 7900aa699c: kernel-selftests-bpf.sched_ext.runner.init_enable_count_#.fail Message-ID: References: <202511141028.39aed7d5-lkp@intel.com> 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: <202511141028.39aed7d5-lkp@intel.com> Hello, On Fri, Nov 14, 2025 at 10:21:12AM +0800, kernel test robot wrote: > kernel test robot noticed "kernel-selftests-bpf.sched_ext.runner.init_enable_count_#.fail" on: > > commit: 7900aa699c34401cf5d0c701d9ef72880ddc1a83 ("sched_ext: Fix cgroup exit ordering by moving sched_ext_free() to finish_task_switch()") > https://git.kernel.org/cgit/linux/kernel/git/tj/sched_ext.git for-next > > [test failed on linux-next/master b179ce312bafcb8c68dc718e015aee79b7939ff0] Unfortunately, I can't reproduce this failure. > # ===== START ===== > # TEST: init_enable_count > # DESCRIPTION: Verify we correctly count the occurrences of init, enable, etc callbacks. > # OUTPUT: > # ERR: init_enable_count.c:63 > # Expected skel->bss->init_task_cnt >= num_pre_forks (611 >= 1024) > # not ok 9 init_enable_count # > # ===== END ===== Looking at the code, I don't see how init_task_cnt can be lower than num_pre_forks or how the referenced commit can change that (it only changes the exit path). Thanks. -- tejun