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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 3B675C0044D for ; Mon, 16 Mar 2020 14:43:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0FBAB2051A for ; Mon, 16 Mar 2020 14:43:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=arista.com header.i=@arista.com header.b="PuFLnGkv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731935AbgCPOnF (ORCPT ); Mon, 16 Mar 2020 10:43:05 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:44419 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731589AbgCPOnE (ORCPT ); Mon, 16 Mar 2020 10:43:04 -0400 Received: by mail-pg1-f196.google.com with SMTP id 37so9867320pgm.11 for ; Mon, 16 Mar 2020 07:43:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arista.com; s=googlenew; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=T0qqTPkX+mDcXv1jOokn32GElsZQ+Yr4A6SJDSHq5Kw=; b=PuFLnGkvg05+A9SgK7xJ8SaP4m9fp5PyfFn0mFmc76CxWOiGpRu8vpwbGU5ur28qeV lVkcwFrOgnghNLd3/NZW6uqZtJUYQHb9li1nPgAp7cn98/S7kYvrwse6xLXFm6I7ySX1 VFEZoyKc5Zxg8/ZeUOE/dUTuX4cUhbuYE9TNqv+cBE+E88sFQ+EtxEY4wN5pcTa30INZ EgVqUk/NjBMFEe3MyHhg0i+iRnIAC9GGb9DnZGsMwpF2wlO0P3DOwuOtB7UDRmnTJgxW NmWaZuKmEUJlnKDejcfrN+DRHL/dxnP8z2Ol5G+BgusdCOFIuhXBZ/l6HSgdbdtxdo8v tDBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=T0qqTPkX+mDcXv1jOokn32GElsZQ+Yr4A6SJDSHq5Kw=; b=ELieNFjEo9T38wqPfc4D3/M74MbUjl0/AQIAbDeCl3pQ4It8J9t+TxbB3vwBPyXHC9 B3JFNb2FhVfhfNNigVGwC9Js97X0SnVMz4lGBZV1wu6KrIaYSRt1HpvR7s0SL8lw+IcS kN0lIwBXLlwc+TyWADAhczhaxqAIrZdqC7dRHpFf888mzLCUwU/sVPpK/AzacekBQKsb 0vU7vs9QrLD2J9tyFDhvx7/+N9DhGyVcyAoD6Qq2dSJjS1SvSdFjNh5ieo9ya2HTrwSk +h6EAYEwdifPvpO4EYCJOY6xTY9zUcM7lQP6B7SwZJb89vKGd+o+nO2t3TOIMHHJO+iR R5Dw== X-Gm-Message-State: ANhLgQ2ZEVd97FuCbcYLQU/3EUtviwHjTZblgFUfG5qXlZejxWxJQyJs EoBwnx8GqTn5adSmQrc6C5Tq2qJlDy+q0g== X-Google-Smtp-Source: ADFU+vtV9A9Dnu1i9/nyv01E+pBw4vXUuhWmiNwqDWi1NlPpA+QZFslO9bH3x/EeFADOIxRkO+LSdA== X-Received: by 2002:a62:6842:: with SMTP id d63mr28679997pfc.113.1584369783065; Mon, 16 Mar 2020 07:43:03 -0700 (PDT) Received: from Mindolluin.aristanetworks.com ([2a02:8084:e84:2480:228:f8ff:fe6f:83a8]) by smtp.gmail.com with ESMTPSA id i2sm81524pjs.21.2020.03.16.07.42.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2020 07:43:02 -0700 (PDT) From: Dmitry Safonov To: linux-kernel@vger.kernel.org Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Dmitry Safonov , Andrew Morton , Greg Kroah-Hartman , Ingo Molnar , Jiri Slaby , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Tetsuo Handa , Borislav Petkov , "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , x86@kernel.org Subject: [PATCHv2 45/50] x86/amd_gart: Print stacktrace for a leak with KERN_ERR Date: Mon, 16 Mar 2020 14:39:11 +0000 Message-Id: <20200316143916.195608-46-dima@arista.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200316143916.195608-1-dima@arista.com> References: <20200316143916.195608-1-dima@arista.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's under CONFIG_IOMMU_LEAK option which is enabled by debug config. Likely the backtrace is worth to be seen - so aligning with log level of error message in iommu_full(). Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Thomas Gleixner Cc: x86@kernel.org Signed-off-by: Dmitry Safonov --- arch/x86/kernel/amd_gart_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c index 4e5f50236048..c0fdf594709e 100644 --- a/arch/x86/kernel/amd_gart_64.c +++ b/arch/x86/kernel/amd_gart_64.c @@ -159,7 +159,7 @@ static void dump_leak(void) return; dump = 1; - show_stack(NULL, NULL); + show_stack_loglvl(NULL, NULL, KERN_ERR); debug_dma_dump_mappings(NULL); } #endif -- 2.25.1