From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23507 invoked by alias); 23 Feb 2006 13:17:34 -0000 Received: (qmail 23500 invoked by uid 22791); 23 Feb 2006 13:17:32 -0000 X-Spam-Status: No, hits=-0.8 required=5.0 tests=AWL,BAYES_00,DNS_FROM_RFC_ABUSE,SPF_SOFTFAIL X-Spam-Check-By: sourceware.org Received: from e4.ny.us.ibm.com (HELO e4.ny.us.ibm.com) (32.97.182.144) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 23 Feb 2006 13:17:29 +0000 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e4.ny.us.ibm.com (8.12.11/8.12.11) with ESMTP id k1NDHQUE006068 for ; Thu, 23 Feb 2006 08:17:26 -0500 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay04.pok.ibm.com (8.12.10/NCO/VERS6.8) with ESMTP id k1NDHQ82225784 for ; Thu, 23 Feb 2006 08:17:26 -0500 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11/8.13.3) with ESMTP id k1NDHQqm022992 for ; Thu, 23 Feb 2006 08:17:26 -0500 Received: from newton.in.ibm.com ([9.124.35.47]) by d01av02.pok.ibm.com (8.12.11/8.12.11) with ESMTP id k1NDHPZ3022915; Thu, 23 Feb 2006 08:17:26 -0500 Received: by newton.in.ibm.com (Postfix, from userid 500) id F0D70CE3; Thu, 23 Feb 2006 18:49:02 +0530 (IST) Date: Thu, 23 Feb 2006 13:17:00 -0000 From: Prasanna S Panchamukhi To: "Frank Ch. Eigler" Cc: systemtap@sources.redhat.com Subject: Re: [PATCH] Kprobes- robust fault handling for i386 Message-ID: <20060223131902.GA19931@in.ibm.com> Reply-To: prasanna@in.ibm.com References: <9FBCE015AF479F46B3B410499F3AE05BC4BF0C@pdsmsx405> <20060223085935.GA2473@in.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2006-q1/txt/msg00595.txt.bz2 On Thu, Feb 23, 2006 at 07:39:53AM -0500, Frank Ch. Eigler wrote: > Prasanna S Panchamukhi writes: > > > [...] As of now to fix the broken kprobes fault handling, here is the > > patch. This is only for i386, once we freeze on this prototype, this > > can be ported to other architectures. > > > > This patch provides proper kprobes fault handling, if a user-specified > > pre/post handlers tries to access user address space, through > > copy_from_user(), get_user() etc. [...] > > Is it correct that this patch enables only the first bullet in > ? Yes. -- Thanks & Regards Prasanna S Panchamukhi Linux Technology Center India Software Labs, IBM Bangalore Email: prasanna@in.ibm.com Ph: 91-80-51776329