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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6A5BC433FE for ; Tue, 8 Nov 2022 09:42:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233737AbiKHJmr (ORCPT ); Tue, 8 Nov 2022 04:42:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233487AbiKHJmG (ORCPT ); Tue, 8 Nov 2022 04:42:06 -0500 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A2D7432BBE for ; Tue, 8 Nov 2022 01:42:04 -0800 (PST) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id B325160015; Tue, 8 Nov 2022 09:42:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1667900523; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=1m/wXqz3m3Z8KOPX0vHt3R2SNBbCLX0ZfbTz9ZhUWoo=; b=WftMKg6BPP2Xu50Spqn4fVqH8JY5SYueG8mkI4sNRhCrcIymX/IkKiz7Snk79xhcQq3wmX bx0wVbb2MP5kIZ34j20Bkdm1FceSW3SoNSH8qpOkix14H70mWIxPSuO+l51ZeRBBXHWcRm 5ybD9wO7PzvD6dFvUAaj4Itl4BYy2qHs/Q3XmfMCC2QjzU57R7lbIiJ4Xtn1/ADhjHzJA2 ehrefxKU7Hj+LC595rHJzkVdKfYyZEm6KanGmErVIqSWsj2x00ceBakndAHQWGJ0vMqeDy jsRd4ueswMbaPhlj9E60Y91wG2SS5rwlT4pVCmHz9Xz20E4hUT863b+YhkNuYA== From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= To: Catalin Marinas , Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Thomas Petazzoni , Alexandre Belloni , =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= Subject: [PATCH] mm/kmemleak: use %pK to display kernel pointers in backtrace Date: Tue, 8 Nov 2022 10:43:22 +0100 Message-Id: <20221108094322.73492-1-clement.leger@bootlin.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, %p is used to display kernel pointers in backtrace which result in a hashed value that is not usable to correlate the address for debug. Use %pK which will respect the kptr_restrict configuration value and thus allow to extract meaningful information from the backtrace. Signed-off-by: Clément Léger --- mm/kmemleak.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index 646e2979641f..b16be8891ae3 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -358,7 +358,7 @@ static void print_unreferenced(struct seq_file *seq, for (i = 0; i < object->trace_len; i++) { void *ptr = (void *)object->trace[i]; - warn_or_seq_printf(seq, " [<%p>] %pS\n", ptr, ptr); + warn_or_seq_printf(seq, " [<%pK>] %pS\n", ptr, ptr); } } -- 2.38.1