Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934420AbcJRWFu (ORCPT ); Tue, 18 Oct 2016 18:05:50 -0400 Received: from mail-wm0-f47.google.com ([74.125.82.47]:35454 "EHLO mail-wm0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753302AbcJRWFm (ORCPT ); Tue, 18 Oct 2016 18:05:42 -0400 MIME-Version: 1.0 In-Reply-To: <20161018233645.ed29e83f81404f09a627287e@gmail.com> References: <201610160608.eB1Owrn3%fengguang.wu@intel.com> <20161017233752.68d20a89dbc9b0ff8841c9b3@gmail.com> <20161018233645.ed29e83f81404f09a627287e@gmail.com> From: Kees Cook Date: Tue, 18 Oct 2016 15:05:39 -0700 X-Google-Sender-Auth: jH5JCB9ZMUzosk-vSItSKo8SXLY Message-ID: Subject: Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes To: Emese Revfy Cc: kbuild test robot , kbuild-all@01.org, LKML , "pageexec@freemail.hu" , "spender@grsecurity.net" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 656 Lines: 21 On Tue, Oct 18, 2016 at 2:36 PM, Emese Revfy wrote: > On Tue, 18 Oct 2016 13:57:35 -0700 > Kees Cook wrote: > >> This is controlled by CONFIG_FRAME_WARN. I don't think this is a >> particular problem or should be avoided, but perhaps we can set the >> default to 2048 (as done on 64BIT) if we're building with the entropy >> plugin. > > This is probably a gcc code generation bug on i386 when a plugin uses too many 64 bit variables > so I think PaX Team's patch will be the best solution. Okay, cool. If you're able, please CC me with the fix when it happens. :) Thanks! -Kees -- Kees Cook Nexus Security