From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F9BDC433E9 for ; Fri, 8 Jan 2021 15:31:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5EF2F23A31 for ; Fri, 8 Jan 2021 15:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727778AbhAHPb3 (ORCPT ); Fri, 8 Jan 2021 10:31:29 -0500 Received: from mx2.suse.de ([195.135.220.15]:50808 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725817AbhAHPb2 (ORCPT ); Fri, 8 Jan 2021 10:31:28 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C3587ACC6; Fri, 8 Jan 2021 15:30:46 +0000 (UTC) Subject: Re: [PATCH mm,percpu_ref,rcu 4/6] mm: Make mem_obj_dump() vmalloc() dumps include start and length To: paulmck@kernel.org, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, linux-mm@kvack.org Cc: cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, ming.lei@redhat.com, axboe@kernel.dk, kernel-team@fb.com References: <20210106011603.GA13180@paulmck-ThinkPad-P72> <20210106011750.13709-4-paulmck@kernel.org> From: Vlastimil Babka Message-ID: <8c387b3c-33f5-968a-6882-55075066d9f4@suse.cz> Date: Fri, 8 Jan 2021 16:30:46 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210106011750.13709-4-paulmck@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/6/21 2:17 AM, paulmck@kernel.org wrote: > From: "Paul E. McKenney" > > This commit adds the starting address and number of pages to the vmalloc() > information dumped by way of vmalloc_dump_obj(). > > Cc: Andrew Morton > Cc: Joonsoo Kim > Cc: > Reported-by: Andrii Nakryiko > Suggested-by: Vlastimil Babka > Signed-off-by: Paul E. McKenney Acked-by: Vlastimil Babka > --- > mm/vmalloc.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/mm/vmalloc.c b/mm/vmalloc.c > index c274ea4..e3229ff 100644 > --- a/mm/vmalloc.c > +++ b/mm/vmalloc.c > @@ -3456,7 +3456,8 @@ bool vmalloc_dump_obj(void *object) > vm = find_vm_area(objp); > if (!vm) > return false; > - pr_cont(" vmalloc allocated at %pS\n", vm->caller); > + pr_cont(" %u-page vmalloc region starting at %#lx allocated at %pS\n", > + vm->nr_pages, (unsigned long)vm->addr, vm->caller); > return true; > } > >