From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BE8062550AF; Mon, 23 Mar 2026 15:21:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774279283; cv=none; b=Ndn8zeEULm8bfVRq5O4jswzKEGrKxcG7oukMON/a1VF1iHKfm7gm7j6jwTkjZP6MDDg7AzpyEYjDw+NOpO+2VIXvCpW1f/p1gFrK2fuUZwwQmSddBmWMnVgcOMPcCjGJNwzj5noFsx8hDp47H17qFmIC0B/QPhrU/AMi2cLMuYA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774279283; c=relaxed/simple; bh=M8xbWTYUY/sP27bj4DKT4WVwrQMr/bpCfXwmvPf5T5Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=STzUx0qQFELqIPQga7kz3qDz1nkb/aQVVtanbaFmkLZ3wr+8k8uD70Ngac+UvbuA3rxmF6jWBgFiWAqNoNm8X7DuNj/ykq5S2vdIiBsyxAoLj6ix+TrXBqA/vpT1BMQxdpcTJ4uQUPW22quFGnycn4cjtDUhnZa/1E+mc1bgAos= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 38D7B14BF; Mon, 23 Mar 2026 08:21:15 -0700 (PDT) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CB45B3F694; Mon, 23 Mar 2026 08:21:20 -0700 (PDT) Date: Mon, 23 Mar 2026 15:21:18 +0000 From: Leo Yan To: Arnaldo Carvalho de Melo Cc: Breno Leitao , Ian Rogers , Peter Zijlstra , Ingo Molnar , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Adrian Hunter , James Clark , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, Denis Yaroshevskiy Subject: Re: [PATCH] perf stat: Fix crash on arm64 Message-ID: <20260323152118.GB43072@e132581.arm.com> References: <20260205-perf_stat-v1-1-e433b0c918af@debian.org> <20260205173918.GB3529712@e132581.arm.com> <20260205175250.GC3529712@e132581.arm.com> <20260311115011.GJ4153946@e132581.arm.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: Hi Arnaldo, On Mon, Mar 23, 2026 at 11:36:22AM -0300, Arnaldo Carvalho de Melo wrote: [...] > > I managed to reproduce using Leo's method: > > But then I applied Breno's patch and got the same SEGV as below. Are you sure ? When my replied previously, I tried Breno and confirmed the Segmentation fault can be dismissed. Do you want me to test again? Thanks, Leo