Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753587AbZDWQC4 (ORCPT ); Thu, 23 Apr 2009 12:02:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752256AbZDWQCq (ORCPT ); Thu, 23 Apr 2009 12:02:46 -0400 Received: from saraswathi.solana.com ([198.99.130.12]:39423 "EHLO saraswathi.solana.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750860AbZDWQCp (ORCPT ); Thu, 23 Apr 2009 12:02:45 -0400 Date: Thu, 23 Apr 2009 12:02:29 -0400 From: Jeff Dike To: Oleg Nesterov Cc: Roland McGrath , linux-kernel@vger.kernel.org Subject: Re: PT_DTRACE && uml Message-ID: <20090423160229.GA9820@c2.user-mode-linux.org> References: <20090330185146.D525AFC3AB@magilla.sf.frob.com> <20090408203954.GA26816@redhat.com> <20090416204004.GA28013@redhat.com> <20090416232430.4DAE4FC3C6@magilla.sf.frob.com> <20090420183718.GC32527@redhat.com> <20090421011354.4B19EFC3C7@magilla.sf.frob.com> <20090421214819.GA22845@redhat.com> <20090422032205.B8D39FC3C7@magilla.sf.frob.com> <20090422220400.GA22755@redhat.com> <20090422221726.GC22755@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090422221726.GC22755@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 635 Lines: 19 On Thu, Apr 23, 2009 at 12:17:26AM +0200, Oleg Nesterov wrote: > (cc Jeff Dike) > > So, arch/um/ seems to be the only user of PT_DTRACE. > > I do not understand this code at all. It looks as if we can just > s/PT_DTRACE/TIF_SINGLESTEP/. > > But it can't be that simple? It looks like it. The one odd part is the use in the signal delivery code. That looks like a bug to me. Jeff -- 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/