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,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 1E4BEC76188 for ; Tue, 23 Jul 2019 07:26:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD248227B6 for ; Tue, 23 Jul 2019 07:26:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="gocQCkAY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388339AbfGWH0O (ORCPT ); Tue, 23 Jul 2019 03:26:14 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:35696 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729058AbfGWH0O (ORCPT ); Tue, 23 Jul 2019 03:26:14 -0400 Received: by mail-pg1-f193.google.com with SMTP id s1so12656976pgr.2 for ; Tue, 23 Jul 2019 00:26:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=ZVZ61BiSzBKJ1JT8Cvz6WiCNSXWAXSUthPiD0rVVcPA=; b=gocQCkAYncRSzUUCtbO3BJahbIuaWTM4EaSrObCoPhrkQw8xDGMQMZtnJqNF++4NSd p5XrXrhWRrJjTwrm1fW8EoHMNTAd1OxsUwfU5HhSFQSfwFnBTKG0J6vjrwBvvTnFnLRR hlD0qD2vVrPxshPPpevMZa9cGTQ/nvrlla+U4= 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:mime-version :content-transfer-encoding; bh=ZVZ61BiSzBKJ1JT8Cvz6WiCNSXWAXSUthPiD0rVVcPA=; b=OOgakfTJ+kc5aqn2iksD1NjlWQmyTsa/6MuQk+6axHRB6zqGVjMGZkhoyYTnJGWowI NlZqyKuXH3jehLuACYmQxk97HuP7nutwCAvNm5S0yvQnhS7RPQq6/rh/rX7TizQxcZU0 5X+xfYQEdiRdQTPJx9rJ3WDEUg7Q5pOmltVS5+CPzrcOPBz3VnunH77eSqdvw7/m8Kwz bTNZ828nRiMy0ud2cVrbetRTQ3huLvRh3DHo4hdLxZF+SWY7Jh0rF93qHyZ02f5GEqfP dCZ9z7rnUp3b4adVXroqloRrwdxI7x3VzYi2grR7gtSvvM9fqpyPU9P/VKKZO8uWvRhX Sbsw== X-Gm-Message-State: APjAAAXydnKHY+Vwgun8Npx1odruQJZ367RBGXOMM+K1sYVfK8oY6mLK Dt2xIJNPhfHKH33mNgp6Aef/8g== X-Google-Smtp-Source: APXvYqzyCDsjrvVzBY798lFYumN96rIA5hEZN2RFZuvjjKJY7Q/o1g6WNkNqbbHd6FZcw+uSJ3gpXQ== X-Received: by 2002:a63:ff20:: with SMTP id k32mr75509673pgi.445.1563866772783; Tue, 23 Jul 2019 00:26:12 -0700 (PDT) Received: from drinkcat2.tpe.corp.google.com ([2401:fa00:1:b:d8b7:33af:adcb:b648]) by smtp.gmail.com with ESMTPSA id o95sm36406676pjb.4.2019.07.23.00.26.09 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 23 Jul 2019 00:26:12 -0700 (PDT) From: Nicolas Boichat To: Andrew Morton Cc: Masahiro Yamada , Kees Cook , Petr Mladek , Thomas Gleixner , Tetsuo Handa , Joe Lawrence , Sri Krishna chowdary , Uladzislau Rezki , Andy Shevchenko , Changbin Du , linux-kernel@vger.kernel.org, Stephen Rothwell , Catalin Marinas , Dmitry Vyukov , Andrey Ryabinin Subject: [PATCH] kmemleak: Increase maximum early log entries to 1000000 Date: Tue, 23 Jul 2019 15:26:05 +0800 Message-Id: <20190723072605.103456-1-drinkcat@chromium.org> X-Mailer: git-send-email 2.22.0.657.g960e92d24f-goog 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 When KASan is enabled, a lot of memory is allocated early on, and kmemleak complains (this is on a 4GB RAM system): kmemleak: Early log buffer exceeded (129846), please increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE Let's increase the upper limit to 1M entry. That would take up 160MB of RAM at init (each early_log entry is 160 bytes), but the memory would later be freed (early_log is __initdata). Signed-off-by: Nicolas Boichat --- lib/Kconfig.debug | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index f567875b87657de..1a197b8125768b9 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -595,7 +595,7 @@ config DEBUG_KMEMLEAK config DEBUG_KMEMLEAK_EARLY_LOG_SIZE int "Maximum kmemleak early log entries" depends on DEBUG_KMEMLEAK - range 200 40000 + range 200 1000000 default 400 help Kmemleak must track all the memory allocations to avoid -- 2.22.0.657.g960e92d24f-goog