From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sfi-mx-2.v28.ch3.sourceforge.com ([172.29.28.122] helo=mx.sourceforge.net) by 335xhf1.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1MUPia-0005zh-HO for ltp-list@lists.sourceforge.net; Fri, 24 Jul 2009 18:42:08 +0000 Received: from outbound-dub.frontbridge.com ([213.199.154.16] helo=IE1EHSOBE003.bigfish.com) by 72vjzd1.ch3.sourceforge.com with esmtps (TLSv1:RC4-MD5:128) (Exim 4.69) id 1MUPiW-0005Ma-Sb for ltp-list@lists.sourceforge.net; Fri, 24 Jul 2009 18:42:08 +0000 Message-ID: <4A69FCD3.9070707@am.sony.com> Date: Fri, 24 Jul 2009 11:26:27 -0700 From: Tim Bird MIME-Version: 1.0 References: <200907241349.58754.vapier@gentoo.org> In-Reply-To: Subject: Re: [LTP] Char Limit issue on 2.6.29 kernels List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: ltp-list-bounces@lists.sourceforge.net To: naresh kamboju Cc: ltp-list@lists.sourceforge.net, Mike Frysinger , maxin john , brinda_mn@yahoo.co.in, linux-kernel@vger.kernel.org, Oleg Nesterov , rohit.170309@gmail.com bmFyZXNoIGthbWJvanUgd3JvdGU6Cj4gSGkgTWlrZSwKPiAKPiBPbiBGcmksIEp1bCAyNCwgMjAw OSBhdCAxMToxOSBQTSwgTWlrZSBGcnlzaW5nZXI8dmFwaWVyQGdlbnRvby5vcmc+IHdyb3RlOgo+ PiBPbiBGcmlkYXkgMjQgSnVseSAyMDA5IDExOjMxOjU5IG5hcmVzaCBrYW1ib2p1IHdyb3RlOgo+ Pj4gSSBoYXZlIGNvbWUgYWNyb3NzIHdpdGggY2hhciBMaW1pdCBpc3N1ZSBvbiAyLjYuMjkga2Vy bmVscy4KPj4+Cj4+Pgo+Pj4gU0lHRkFVTFQ6Cj4+Pgo+Pj4gI2RlZmluZSBTSVpFIO+/vSDvv70g 77+9IO+/vSDvv70g77+9ODA1Mzc1OQo+Pj4gY2hhciBidWYxW1NJWkVdIDsKPj4+Cj4+PiBOTyBT SUdGQVVMVDoKPj4+Cj4+PiAjZGVmaW5lIFNJWkUg77+9IO+/vSDvv70g77+9IO+/vSDvv704MDUz NzU4Cj4+PiBjaGFyIGJ1ZjFbU0laRV0gOwo+Pj4KPj4+IFRoaXMgU0lHRkFVTFQgbm90IG9ic2Vy dmVkIG9uIDIuNi4yMyBrZXJuZWxzLgo+PiAtRU5PSU5GTwo+Pgo+PiBwb3N0IHNvbWUgYWN0dWFs IGNvZGUgcmF0aGVyIHRoYW4gc2F5aW5nICJpIGRlY2xhcmVkIGEgbGFyZ2UgYnVmZmVyIGFuZCB0 aGluZ3MKPj4gY3Jhc2hlZCIuCj4gCj4gY3VycmVudGx5IGkgYW0gZGVidWdnaW5nIHRoaXMgaXNz dWUuCj4gaSdsbCBjb21lIHVwIHdpdGggbW9yZSBkZXRhaWxzLgoKU29tZSBtb3JlIGZlZWRiYWNr Li4uCgpJdCdzIFNFR0ZBVUxUIC0gc2hvcnQgZm9yICJTZWdtZW50YXRpb24gRmF1bHQiLCBub3Qg U0lHRkFVTFQuCgpQbGVhc2UgaW5jbHVkZSBpbiB5b3VyIGRldGFpbHMgYXQgbGVhc3QgdGhlIGZv bGxvd2luZzoKICogd2hhdCBzb2Z0d2FyZSB0aGlzIGlzIGluIChpcyB0aGlzIGRlY2xhcmF0aW9u IGluIHRoZSBrZXJuZWw/LCBhIGxpYnJhcnksIGEKIHVzZXIgc3BhY2UgcHJvZ3JhbSwgZXRjLikK ICogd2hhdCBvcGVyYXRpb24gaXMgYmVpbmcgcGVyZm9ybWVkIHdoZW4gdGhlIFNFR0ZBVUxUIG9j Y3Vycy4KICogd2hhdCBjb21waWxlciB5b3UgYXJlIHVzaW5nLgogKiB0aGUgY29kZSBzdXJyb3Vu ZGluZyB0aGUgb3BlcmF0aW9uIHdoZW4gdGhlIGZhdWx0IG9jY3VycwoKSWYgeW91IGNhbiwgbWFr ZSB0aGUgc21hbGxlc3QgcG9zc2libGUgcHJvZ3JhbSB0aGF0IHJlcHJvZHVjZXMgdGhpcyBlcnJv ciwKYW5kIHNlbmQgdGhlIGNvbXBsZXRlIHNvdXJjZSBmb3IgdGhhdC4KIC0tIFRpbQoKPT09PT09 PT09PT09PT09PT09PT09PT09PT09PT0KVGltIEJpcmQKQXJjaGl0ZWN0dXJlIEdyb3VwIENoYWly LCBDRSBMaW51eCBGb3J1bQpTZW5pb3IgU3RhZmYgRW5naW5lZXIsIFNvbnkgQ29ycG9yYXRpb24g b2YgQW1lcmljYQo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PQoKCi0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpM dHAtbGlzdCBtYWlsaW5nIGxpc3QKTHRwLWxpc3RAbGlzdHMuc291cmNlZm9yZ2UubmV0Cmh0dHBz Oi8vbGlzdHMuc291cmNlZm9yZ2UubmV0L2xpc3RzL2xpc3RpbmZvL2x0cC1saXN0Cg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753876AbZGXS0v (ORCPT ); Fri, 24 Jul 2009 14:26:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753717AbZGXS0u (ORCPT ); Fri, 24 Jul 2009 14:26:50 -0400 Received: from outbound-dub.frontbridge.com ([213.199.154.16]:32203 "EHLO IE1EHSOBE003.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753614AbZGXS0u convert rfc822-to-8bit (ORCPT ); Fri, 24 Jul 2009 14:26:50 -0400 X-SpamScore: -47 X-BigFish: VPS-47(z21eWz1432R9370K98dN936eM9371Pzz1202hzzz2fh6bh61h) X-Spam-TCS-SCL: 0:0 Message-ID: <4A69FCD3.9070707@am.sony.com> Date: Fri, 24 Jul 2009 11:26:27 -0700 From: Tim Bird User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: naresh kamboju CC: Mike Frysinger , ltp-list@lists.sourceforge.net, linux-kernel@vger.kernel.org, maxin john , brinda_mn@yahoo.co.in, Oleg Nesterov , rohit.170309@gmail.com Subject: Re: [LTP] Char Limit issue on 2.6.29 kernels References: <200907241349.58754.vapier@gentoo.org> In-Reply-To: Content-Type: text/plain; charset="UTF-8" X-OriginalArrivalTime: 24 Jul 2009 18:26:28.0694 (UTC) FILETIME=[42AB0760:01CA0C8C] X-SEL-encryption-scan: scanned Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org naresh kamboju wrote: > Hi Mike, > > On Fri, Jul 24, 2009 at 11:19 PM, Mike Frysinger wrote: >> On Friday 24 July 2009 11:31:59 naresh kamboju wrote: >>> I have come across with char Limit issue on 2.6.29 kernels. >>> >>> >>> SIGFAULT: >>> >>> #define SIZE � � � � � �8053759 >>> char buf1[SIZE] ; >>> >>> NO SIGFAULT: >>> >>> #define SIZE � � � � � �8053758 >>> char buf1[SIZE] ; >>> >>> This SIGFAULT not observed on 2.6.23 kernels. >> -ENOINFO >> >> post some actual code rather than saying "i declared a large buffer and things >> crashed". > > currently i am debugging this issue. > i'll come up with more details. Some more feedback... It's SEGFAULT - short for "Segmentation Fault", not SIGFAULT. Please include in your details at least the following: * what software this is in (is this declaration in the kernel?, a library, a user space program, etc.) * what operation is being performed when the SEGFAULT occurs. * what compiler you are using. * the code surrounding the operation when the fault occurs If you can, make the smallest possible program that reproduces this error, and send the complete source for that. -- Tim ============================= Tim Bird Architecture Group Chair, CE Linux Forum Senior Staff Engineer, Sony Corporation of America =============================