From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 79217 invoked by alias); 12 Mar 2015 17:55:09 -0000 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 Received: (qmail 79206 invoked by uid 89); 12 Mar 2015 17:55:08 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-lb0-f176.google.com Received: from mail-lb0-f176.google.com (HELO mail-lb0-f176.google.com) (209.85.217.176) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Thu, 12 Mar 2015 17:55:07 +0000 Received: by lbdu14 with SMTP id u14so17777223lbd.0 for ; Thu, 12 Mar 2015 10:55:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-type; bh=h8qNyBDsayoM4xOJ2UhenROjxM4fZDFjVOeohK2/Bxs=; b=lUDiPJAurWvY20OD7uStcJzOvADC+cO8CJPY4OLs4BbcW0G6mQGfqp5ubyjglhAkJM 3lDxlLLSMFjX7kXX6jbcGcwkgmiXUxDkFAjoNxTmXsDcu4fNeCaKCG9e/USp7n9ah8qv DtkJMQ+8o+DiXl3uGjjFoDlnU10jZ/yxjjWnqKRSCQ4TMH9tHu3yqPrT58KohAZa4c9R LxK/EP17X6XnLoJaroEsH/Nje9jOTwo5FFqh+qIJAhU392JM8Sv5dXqh/5IbKvv0MO04 QGiJvO/rZhdsHnzGFnjmpU4W+IGyrQ+itnI6JTjMTmB+Wx5TBRNtU+5yd06enrCySs+C Qrlw== X-Gm-Message-State: ALoCoQlcdP4p1EW86Fkt5B4ATTjdTzQquOiBzL7LOsmjVOG6T+rvqPeMepxBlV+Tb30fasZDYMzA X-Received: by 10.112.46.201 with SMTP id x9mr40337619lbm.65.1426182903869; Thu, 12 Mar 2015 10:55:03 -0700 (PDT) MIME-Version: 1.0 Received: by 10.152.111.232 with HTTP; Thu, 12 Mar 2015 10:54:43 -0700 (PDT) In-Reply-To: <20150312174653.GA13086@redhat.com> References: <878ufc9kau.fsf@redhat.com> <20150305154827.GA9441@host1.jankratochvil.net> <87zj7r5fpz.fsf@redhat.com> <20150305205744.GA13165@host1.jankratochvil.net> <20150311200052.GA22654@redhat.com> <20150312143438.GA4338@redhat.com> <20150312165423.GA10073@redhat.com> <20150312174653.GA13086@redhat.com> From: Andy Lutomirski Date: Thu, 12 Mar 2015 17:55:00 -0000 Message-ID: Subject: Re: vvar, gup && coredump To: Oleg Nesterov Cc: Jan Kratochvil , Sergio Durigan Junior , GDB Patches , Pedro Alves , "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 X-SW-Source: 2015-03/txt/msg00361.txt.bz2 On Thu, Mar 12, 2015 at 10:46 AM, Oleg Nesterov wrote: > On 03/12, Oleg Nesterov wrote: >> >> Yes, this is true. OK, lets not dump it. > > OTOH. We can probably add ->access() into special_mapping_vmops, this > way __access_remote_vm() could work even if gup() fails ? Let's wait until my special_mapping vmops rework lands to do that. I'll dust it off and resubmit it. > > Jan, Sergio. How much do we want do dump this area ? The change above > should be justified. > > Oleg. > -- Andy Lutomirski AMA Capital Management, LLC