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 D377E149C50 for ; Fri, 7 Mar 2025 11:33:18 +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=1741347198; cv=none; b=SY2zXSbri9Es0wUlPGwje0UBmVekiSAQmLMcXUhUhOvhf5H/m9qSdRL8crWP79pRiDM907c+1dNWpJnvdTFgqqV8vjpUuRh58h5g/6Z+ia/vg/7biElyALk6v/FeBVJIpt7pFwCJcj3EjSihQYNN2xONgzL6jtJHyg1/GaYVzj8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741347198; c=relaxed/simple; bh=c8A6LHLgGxAhxtqcvWKDrLXsGsgBqKXg68SJwCV73Ss=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=UxGC5xfL9sp7zjUnSMD+esR6z4fy4ulu5IQ6BSMspGiM0CmBwBiFVxq9+hVRxPGDQL7curi/PQ/CXTw1zCELSVrt7bjWzn9nmKkpsYEWslMZlmNj8WLmws3XGEAsf0OxcqXnzeD9r2Fr/pAzg+gvo6gEbWh68hMQo6zB/ZTCFO4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=t4WFT5J5; 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="t4WFT5J5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2E79FC4CED1; Fri, 7 Mar 2025 11:33:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741347198; bh=c8A6LHLgGxAhxtqcvWKDrLXsGsgBqKXg68SJwCV73Ss=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=t4WFT5J5ObAqiTnnNCVZ0JB9LPfMncQaE5duQici9omqXpE6Q8KbzfQO+NjucNn6A off6jAx+UZrorM1DAy1QkuYslRyv2cHYEZ5ZlRutrnM5K6laqqNG1dzC6IE08Ed+qT zImxb9UNxmC2IGxeVrq7AJu7mImqbQhgAXA2tCv29WIjDreDduw5aIOBOof/yFmfv4 fKrcGPhhpUrPTjrLdyE4FMe5anNVpxqr+SwoybO6B8dBITdMB8oZgOEAmg++8DHtoe ScvveoqmGTrHArXWybEEnfiYXzm+G5M2/9ZC51hWd4qfGHoYQMo+J5vTowoi2A91L3 OwqqCTKwnetBg== Date: Fri, 7 Mar 2025 12:33:12 +0100 From: Ingo Molnar To: "Lai, Yi" Cc: Peter Zijlstra , lucas.demarchi@intel.com, linux-kernel@vger.kernel.org, willy@infradead.org, acme@kernel.org, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, kan.liang@linux.intel.com, yi1.lai@intel.com Subject: Re: [PATCH 04/19] perf: Simplify perf_event_alloc() error path Message-ID: References: <20241104133909.669111662@infradead.org> <20241104135517.967889521@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: * Lai, Yi wrote: > On Thu, Mar 06, 2025 at 10:24:35AM +0100, Ingo Molnar wrote: > > > > * Lai, Yi wrote: > > > > > Hi Peter Zijlstra , > > > > > > Greetings! > > > > > > I used Syzkaller and found that in linux-next (tag: next-20250303), there are two issues and the first bad commit for both issues is > > > > > > " > > > 02be310c2d24 perf/core: Simplify the perf_event_alloc() error path > > > " > > > > We've had a number of fixes in this area, could you please check > > whether you can reproduce this crash with the latest perf tree: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core > > > Tested the tip tree perf/core branch - HEAD 7a310c644cf571fbdb1d447a1dc39cf048634589: > > Above two issues cannot be reproduced. Thank you! Ingo