From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5523 invoked by alias); 7 Sep 2010 18:59:07 -0000 Received: (qmail 5515 invoked by uid 22791); 7 Sep 2010 18:59:07 -0000 X-SWARE-Spam-Status: No, hits=-6.1 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 07 Sep 2010 18:59:03 +0000 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o87IwwG1005107 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 7 Sep 2010 14:58:59 -0400 Received: from ns3.rdu.redhat.com (ns3.rdu.redhat.com [10.11.255.199]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o87Iwwcn022545; Tue, 7 Sep 2010 14:58:58 -0400 Received: from opsy.redhat.com (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by ns3.rdu.redhat.com (8.13.8/8.13.8) with ESMTP id o87IwvhF017274; Tue, 7 Sep 2010 14:58:57 -0400 Received: by opsy.redhat.com (Postfix, from userid 500) id 482F03797F9; Tue, 7 Sep 2010 12:58:57 -0600 (MDT) From: Tom Tromey To: Jan Kratochvil Cc: Doug Evans , gdb-patches@sourceware.org Subject: Re: [patch] Fix DW_OP_call2 and DW_OP_call4 for max-cache-age 0 References: <20100823185008.GA2926@host1.dyn.jankratochvil.net> <20100902160216.GA10848@host1.dyn.jankratochvil.net> <20100903153955.GA3236@host1.dyn.jankratochvil.net> <20100906094821.GA20484@host1.dyn.jankratochvil.net> Date: Wed, 08 Sep 2010 12:26:00 -0000 In-Reply-To: <20100906094821.GA20484@host1.dyn.jankratochvil.net> (Jan Kratochvil's message of "Mon, 6 Sep 2010 11:48:21 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2010-09/txt/msg00174.txt.bz2 >>>>> "Jan" == Jan Kratochvil writes: Jan> This means only one CU is guaranteed to be read in at one time. Jan> And when you hold that CU you must not call any GDB function as Jan> this function can (upon a change in the future) request its own CU Jan> and thus invalidate CU at the caller. I find it as a too fragile Jan> policy. Ok, I understand what you are saying. You could also have a global to suppress aging, that is set on entry to the DWARF module and reset on exit. Your way is probably clearer. Jan> Still I find it even ineffective. Regular aging means CUs get Jan> flushed even if only a few of them is now read-in. I agree. Tom