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=-9.8 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,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 006CBC38A29 for ; Sat, 18 Apr 2020 20:21:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D02CE21D93 for ; Sat, 18 Apr 2020 20:21:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=arista.com header.i=@arista.com header.b="GV1teu+E" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728758AbgDRUVF (ORCPT ); Sat, 18 Apr 2020 16:21:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728692AbgDRUUx (ORCPT ); Sat, 18 Apr 2020 16:20:53 -0400 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0171C061A0C for ; Sat, 18 Apr 2020 13:20:52 -0700 (PDT) Received: by mail-wr1-x443.google.com with SMTP id x18so7199323wrq.2 for ; Sat, 18 Apr 2020 13:20:52 -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=uOLlsLoeGnkz0N7/0K+grdJaQY8t0bt6164OUmJLztk=; b=GV1teu+EkN/dXOcrFG1aZXfyoKxjuiCN43cg+mi4hSWZIZADkzTexTA4/tnGxujcw2 s0vo9gUBZ+ivdNffgPp8P7Hhqv5JdfYl18deLPk9FLT0xGcENkUoO/5GmsNpDsa+T1MB U29U9xrFANKqpTwv0SBRAHCCP5sqcCI2pONmkoJot9BWleVbgXB/hgcJRNDVDBmuftrT rbfzDgUJ554pTgrTSXbDIfDvd7j4EfYAaeiNXrilo3i2Hs9xC3ZMdtgPgugTLp4XpBqm NJBurrNKTQBmyCtKr7TLltCAU8iH71u678mHrn3Rx3Mr2UzeMwSxOz4FMrZIkNHID2gP O0Pg== 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=uOLlsLoeGnkz0N7/0K+grdJaQY8t0bt6164OUmJLztk=; b=hxSnrVZBhE+cR/QBdC3zQtAHlbltMZKqb2EghXWIC62e1xm5VKXFZV2ij64BPXUTLN C5+klOP4T82+dz+QxzruitG7ZLCyWcj8Ws+KvLaz+RWUgd6GMSmPWwZL1lAUR89SvPMX gqkYLkDFrtV/SZPc1ES8RuHuXyI0qMZF3ro6b11i29UhtzdJEO+YELbgcdcdB7Pzfjph gHVsZ1P0B0wMk5W9LDqmlggMOccgowxsllwEHk3z7CEHCXCPylo3cl6Cvm5+EDYTREOi 3aeO7ILxVws/EGj1z1faMPU6aqhxF/ZBVYTmwfd7XhR0+L/WwYfj7igejC1WFw0gYnjc cBug== X-Gm-Message-State: AGi0PuZOlfvstk3/cpX0wJR5xEnstKuKEt9RwfX1vF6Kuu1NU51ZpeYe AXIlz2++EiZ5isjluvQY0KI+STO7zmQ= X-Google-Smtp-Source: APiQypLBhOb36qSo5/8YdCe+7FLbUn6o1FpZQc2VvGXBINdN06jzBHBTC+JL4VAo9roR2oJNh8wqTw== X-Received: by 2002:adf:f342:: with SMTP id e2mr9945162wrp.146.1587241251338; Sat, 18 Apr 2020 13:20:51 -0700 (PDT) Received: from localhost.localdomain ([2a02:8084:e84:2480:228:f8ff:fe6f:83a8]) by smtp.gmail.com with ESMTPSA id m1sm31735255wro.64.2020.04.18.13.20.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Apr 2020 13:20:50 -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: [PATCHv3 45/50] x86/amd_gart: Print stacktrace for a leak with KERN_ERR Date: Sat, 18 Apr 2020 21:19:39 +0100 Message-Id: <20200418201944.482088-46-dima@arista.com> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200418201944.482088-1-dima@arista.com> References: <20200418201944.482088-1-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 16133819415c..9d2c076be37a 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 -- 2.26.0