From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761882AbXGPX07 (ORCPT ); Mon, 16 Jul 2007 19:26:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753837AbXGPX0w (ORCPT ); Mon, 16 Jul 2007 19:26:52 -0400 Received: from moutng.kundenserver.de ([212.227.126.179]:63275 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755330AbXGPX0v (ORCPT ); Mon, 16 Jul 2007 19:26:51 -0400 Subject: Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...? From: utz lehmann To: Rene Herman Cc: Bodo Eggert <7eggert@gmx.de>, Matt Mackall , Jeremy Fitzhardinge , Jesper Juhl , Ray Lee , Linux Kernel Mailing List , William Lee Irwin III In-Reply-To: <469BF104.1040703@gmail.com> References: <8FO1e-2jW-35@gated-at.bofh.it> <8FYWD-2eS-7@gated-at.bofh.it> <8GdsH-8dc-13@gated-at.bofh.it> <8Ghmx-60z-17@gated-at.bofh.it> <8Gj55-hJ-5@gated-at.bofh.it> <8GkNo-2Vb-1@gated-at.bofh.it> <8GtnN-7TG-23@gated-at.bofh.it> <8GVjY-PL-25@gated-at.bofh.it> Content-Type: text/plain Date: Tue, 17 Jul 2007 01:26:35 +0200 Message-Id: <1184628395.8707.15.camel@segv.aura.of.mankind> Mime-Version: 1.0 X-Mailer: Evolution 2.10.2 (2.10.2-3.fc7) Content-Transfer-Encoding: 7bit X-Provags-ID: V01U2FsdGVkX18ij6MuAxvLUWbIK/YTrrUzkGAC4JngBYc464r IjWzUH1tI/oVHVBqum1vf8G/Dx5T/YjkFq2bFX/ouflhazJAlo GGicjyJZb5U8sHjPfkcQrZs6ZRHC5WM Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2007-07-17 at 00:28 +0200, Rene Herman wrote: > Given that as Arjan stated Fedora and even RHEL have been using 4K stacks > for some time now, and certainly the latter being a distribution which I > would expect to both host a relatively large number of lvm/md/xfs and what > stackeaters have you users and to be fairly conservative with respect to the > chances of scribbling over kernel memory (I'm a trusting person...) it seems > there might at this stage only be very few offenders left. I have to recompile the fedora kernel rpms (fc6, f7) with 8k stacks on my i686 server. It's using NFS -> XFS -> DM -> MD (raid1) -> IDE disks. With 4k stacks it crash (hang) within minutes after using NFS. With 8k stacks it's rock solid. No crashes within months. utz