From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (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 959121EDA31 for ; Mon, 24 Mar 2025 14:07:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742825254; cv=none; b=qEUVt/vmyPin+GrpjHaLQI2pa5GAO7TETlmdXjhvUfdQDyFs8EDqduZ8bcVcAn/1Pb7zo50uD9ZeMNxsXmbfacYgmJyXHmyzS4HVgFLx6G2yL7MzLJZRNMv+SLP/3UYm8po7VVq02OePP+49ROXWXRRHV0smChI7zypIl2LbAnQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742825254; c=relaxed/simple; bh=9ts/+W19OfEqb+su2V7RPw2oWOzTqR9GO67Y3MbTXPY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WFRRfsJx3rWJFA+ZwIuXv6qMgFK/8PCjJCGABuGXTV+Az8iKyGxzyFXfAp4yYi9d+ijmSLic9eDUdm4ajMO9esQzmdRosCQemBWpzRvxeFN0cyl4KShZbEH9HeCstRqwR2p5afMvSj6t6nflooim1x2qVRY7LZMofIvFLDTDSJE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Cskc8iNO; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Cskc8iNO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1742825252; x=1774361252; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=9ts/+W19OfEqb+su2V7RPw2oWOzTqR9GO67Y3MbTXPY=; b=Cskc8iNOXv6ERKBKp5tktqY59DcG6OIKpyVBLofNeeIZQSGVTRwsK/Rf T1/6mTWhz/U/N+rrbgwZkwaPouRD4LILeUnE4ABL9+OFipW66kJ21NR2k Ir3giCSsD71oHig4USDgZJD5s4DBq5Wc0ywOiDHYxo4+hVT4QrS8qLHRR 0IQcJlVW/j9IYzuKf5jDzYG1wME26TpKDC8NgugWRkxzkJe22+eEAXDGl Wkq3XLfgr96eAfGiu58tjIaKXJRCg7cR7TRSzLDu5lzv2qCbENIs/omZE 86gbE0rAWXXj+2Tf54pXPHzQOZy2NmeVVbxoyJ7QcDbhoCjw3QvTNfD88 A==; X-CSE-ConnectionGUID: 1tqCVXK1RxiE5vEmycF5IQ== X-CSE-MsgGUID: 5xCMREDaSNeuyG9JgwD5Tg== X-IronPort-AV: E=McAfee;i="6700,10204,11383"; a="46775562" X-IronPort-AV: E=Sophos;i="6.14,272,1736841600"; d="scan'208";a="46775562" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2025 07:07:31 -0700 X-CSE-ConnectionGUID: N3g8cNo4TOK7+/nPFd2s1A== X-CSE-MsgGUID: Q3a3mJ04RCCn9a1cI+T/dw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,272,1736841600"; d="scan'208";a="128749764" Received: from linux.intel.com ([10.54.29.200]) by fmviesa005.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2025 07:07:31 -0700 Received: from [10.246.136.14] (kliang2-mobl1.ccr.corp.intel.com [10.246.136.14]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by linux.intel.com (Postfix) with ESMTPS id D778920B5736; Mon, 24 Mar 2025 07:07:29 -0700 (PDT) Message-ID: <65ef0526-b613-4db5-bd27-d572299284b6@linux.intel.com> Date: Mon, 24 Mar 2025 10:07:28 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V10 1/7] perf: Save PMU specific data in task_struct To: Peter Zijlstra Cc: mingo@redhat.com, tglx@linutronix.de, bp@alien8.de, acme@kernel.org, namhyung@kernel.org, irogers@google.com, linux-kernel@vger.kernel.org, ak@linux.intel.com, eranian@google.com References: <20250314172700.438923-1-kan.liang@linux.intel.com> <20250317111045.GA36386@noisy.programming.kicks-ass.net> Content-Language: en-US From: "Liang, Kan" In-Reply-To: <20250317111045.GA36386@noisy.programming.kicks-ass.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Peter, Sorry for the late response. I was on vacation last week. > > Kan, can you please do a patch failing perf_pmu_register() is there's > more than one pmu with one of the kmem_cache things on? > > Because the current thing very much cannot deal with that case. Sure, I will do more tests with register failing cases and report back. Thanks, Kan