Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756146AbXL2CgP (ORCPT ); Fri, 28 Dec 2007 21:36:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753987AbXL2CgA (ORCPT ); Fri, 28 Dec 2007 21:36:00 -0500 Received: from fg-out-1718.google.com ([72.14.220.155]:33624 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752226AbXL2Cf7 convert rfc822-to-8bit (ORCPT ); Fri, 28 Dec 2007 21:35:59 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=dWXlFCts2Z22zXKq3+wvJ/AgG3SXmUF+Y20RY7jrluo9f4lzKN2P3+551AK/pzzH8hrYdNYWeiHb2xNfwenyvG6juYTUoKFdiKMVOyDuA/WQ/mnu21okc5cIgJ6WFyf957ynQzw6ocdzCTD/t+Z4OxRvzzR3aqxjmDh3k+mRPGU= Message-ID: <6101e8c40712281835m6205fe91p8ecf37a2eac9d432@mail.gmail.com> Date: Sat, 29 Dec 2007 03:35:56 +0100 From: "=?ISO-8859-1?Q?Oliver_Pinter_(Pint=E9r_Oliv=E9r)?=" To: "Randy Dunlap" Subject: Re: [2.6.23(?)=<] X used greatest stack depth: N bytes left Cc: linux-kernel@vger.kernel.org, "Valdis.Kletnieks@vt.edu" In-Reply-To: <20071228171312.baa0776b.randy.dunlap@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Content-Disposition: inline References: <6101e8c40712281311p446f64e1xb28f8fc273545041@mail.gmail.com> <20071228153258.bef76bb2.randy.dunlap@oracle.com> <6101e8c40712281658i2ac7a27du4b0964afd043280e@mail.gmail.com> <20071228171312.baa0776b.randy.dunlap@oracle.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2074 Lines: 60 On 12/29/07, Randy Dunlap wrote: > On Sat, 29 Dec 2007 01:58:44 +0100 Oliver Pinter (Pint?r Oliv?r) wrote: > > > On 12/29/07, Randy Dunlap wrote: > > > On Fri, 28 Dec 2007 22:11:25 +0100 Oliver Pinter (Pint?r Oliv?r) wrote: > > > > > > > in newer kernel I recently see this warnings: > > > > > > > > X used greatest stack depth: N bytes left > > > > > > > > X E { program name } > > > > N E { x byte } > > > > > > > > ----------------8<-------------- > > > > ... > > > > khelper used greatest stack depth: 7496 bytes left > > > > khelper used greatest stack depth: 7184 bytes left > > > > ... > > > > khelper used greatest stack depth: 6328 bytes left > > > > stty used greatest stack depth: 6180 bytes left > > > > mount used greatest stack depth: 6156 bytes left > > > > mknod used greatest stack depth: 5932 bytes left > > > > ... > > > > wpa_supplicant used greatest stack depth: 5740 bytes left > > > > ... > > > > dhclient3 used greatest stack depth: 5500 bytes left > > > > ----------------8<-------------- > > > > > > > > it is the "results" of the CONFIG_DEBUG_STACKOVERFLOW=y > > > > CONFIG_DEBUG_STACK_USAGE=y options or it's other problem or feature? > > > > > > CONFIG_DEBUG_STACK_USAGE, in kernel/exit.c: > > > > > > --- > > > > sure, but to 2.6.22 or 2.6.23-rcX (with merged the cfs scheduler) > > don't show this warnings, but the CONFIG_DEBUG_STACK_USAGE is enabled. > > Sorry, I couldn't tell that you were asking more than that. > > In 2.6.22, CONFIG_DEBUG_STACK_USAGE only causes output during > sysrq-W (show blocked state). > > In 2.6.24-rc, CONFIG_DEBUG_STACK_USAGE also causes output during > process exit, which is what you are seeing. > > Does that help? yes, thanks, then it's the answer sorry, for my bad composition/spelling -- Thanks, Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/