From patchwork Fri Dec 11 01:20:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 11966981 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=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 83BFEC4361B for ; Fri, 11 Dec 2020 01:20:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 23F4423E55 for ; Fri, 11 Dec 2020 01:20:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 23F4423E55 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6A5566B0070; Thu, 10 Dec 2020 20:20:08 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3ABA56B0072; Thu, 10 Dec 2020 20:20:08 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 078696B006E; Thu, 10 Dec 2020 20:20:07 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0211.hostedemail.com [216.40.44.211]) by kanga.kvack.org (Postfix) with ESMTP id CA6EA6B005D for ; Thu, 10 Dec 2020 20:20:07 -0500 (EST) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 9A37C180AD838 for ; Fri, 11 Dec 2020 01:20:07 +0000 (UTC) X-FDA: 77579245254.10.tramp01_2c06b00273fc Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin10.hostedemail.com (Postfix) with ESMTP id 775C116A4B1 for ; Fri, 11 Dec 2020 01:20:07 +0000 (UTC) X-HE-Tag: tramp01_2c06b00273fc X-Filterd-Recvd-Size: 2121 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf13.hostedemail.com (Postfix) with ESMTP for ; Fri, 11 Dec 2020 01:20:06 +0000 (UTC) From: paulmck@kernel.org Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, iamjoonsoo.kim@lge.com, andrii@kernel.org, "Paul E. McKenney" , linux-mm@kvack.org Subject: [PATCH v3 sl-b 4/6] mm: Make mem_obj_dump() vmalloc() dumps include start and length Date: Thu, 10 Dec 2020 17:20:01 -0800 Message-Id: <20201211012003.16473-4-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20201211011907.GA16110@paulmck-ThinkPad-P72> References: <20201211011907.GA16110@paulmck-ThinkPad-P72> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 --- mm/vmalloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 7421719..77b1100 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3439,7 +3439,8 @@ 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; }