Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 18 Mar 2003 01:06:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 18 Mar 2003 01:06:07 -0500 Received: from 169.imtp.Ilyichevsk.Odessa.UA ([195.66.192.169]:13070 "EHLO Port.imtp.ilyichevsk.odessa.ua") by vger.kernel.org with ESMTP id ; Tue, 18 Mar 2003 01:06:06 -0500 Message-Id: <200303180608.h2I68mu23488@Port.imtp.ilyichevsk.odessa.ua> Content-Type: text/plain; charset=US-ASCII From: Denis Vlasenko Reply-To: vda@port.imtp.ilyichevsk.odessa.ua To: Horst von Brand Subject: Re: 2.5.63 accesses below %esp (was: Re: ntfs OOPS (2.5.63)) Date: Tue, 18 Mar 2003 08:05:30 +0200 X-Mailer: KMail [version 1.3.2] Cc: linux-kernel@vger.kernel.org References: <200303172143.h2HLhLql010853@pincoya.inf.utfsm.cl> In-Reply-To: <200303172143.h2HLhLql010853@pincoya.inf.utfsm.cl> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1409 Lines: 33 On 17 March 2003 23:43, Horst von Brand wrote: > Denis Vlasenko said: > > On 15 March 2003 20:34, Horst von Brand wrote: > > > Denis Vlasenko said: > > [...] > > > > > Why not? Disassemble from, say, EIP-16 and check whether you > > > > have an instruction starting exactly at EIP. If no, repeat from > > > > EIP-15, -14... You are guaranteed to succeed at EIP-0 ;) > > > > > > But your previous success (if any) doesn't mean anything, and > > > might even screw up the decoding after EIP > > > > How come? If I started to decode at EIP-n and got a sequence of > > instructions at EIP-n, EIP-n+k1, EIP-n+k2, EIP-n+k3..., EIP, > > instructions prior to EIP can be wrong. Instruction at EIP > > and all subsequent ones ought to be right. > > Iff you exactly hit EIP that way (sure, should check). But wrong > previous instructions _will_ confuse people or start them on all kind > of wild goose chases. Too much work for a dubious gain. You are right. But that is better than showing no prior instructions at all. And most of the time (can I say 90% ?) prior instructions will be ok. -- vda - 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/