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=-14.4 required=3.0 tests=DKIMWL_WL_MED,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_IN_DEF_DKIM_WL 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 07247C433E0 for ; Mon, 25 May 2020 09:57:07 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B61C32078B for ; Mon, 25 May 2020 09:57:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="qvMmSe1X" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B61C32078B Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 63E9F8E0009; Mon, 25 May 2020 05:57:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5EF128E0008; Mon, 25 May 2020 05:57:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 52AF98E0009; Mon, 25 May 2020 05:57:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0036.hostedemail.com [216.40.44.36]) by kanga.kvack.org (Postfix) with ESMTP id 3880C8E0008 for ; Mon, 25 May 2020 05:57:06 -0400 (EDT) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 03E568245571 for ; Mon, 25 May 2020 09:57:06 +0000 (UTC) X-FDA: 76854788052.25.event12_5b0f696516f5d X-HE-Tag: event12_5b0f696516f5d X-Filterd-Recvd-Size: 4501 Received: from mail-qv1-f66.google.com (mail-qv1-f66.google.com [209.85.219.66]) by imf43.hostedemail.com (Postfix) with ESMTP for ; Mon, 25 May 2020 09:57:05 +0000 (UTC) Received: by mail-qv1-f66.google.com with SMTP id f89so7817108qva.3 for ; Mon, 25 May 2020 02:57:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=lXJcON4uIxpNxBwaXZsOO47XJesOn1/BpUPO8EArG+w=; b=qvMmSe1XAwiiXDHUShXrjRlC8kHXfgYHjV+edzVEs9diOiTb51gVIu8DIFR7Kl1EEw 5Y6sFR/4qt/etZj+zXMQpnJBCOEpUeTwjkyvlO8aenAuL6yYXWj5/o20G1wXUq4flko1 0Adu+aOLsPFZhSXfJTg9dh9NB1pX3j29lBaIeuFGFuoJIBmUZdgqF8H4jTnEgquDqytC ME1ipTZN5l8O/AB/Fdssqx02XGyIdC7XSoDAlDbHzQ/3e7envCluBo7IUnF4+C/82B+t JcEk4VlBKK5Unrbf4qGqJeVpeleWSKtRNitNo1bP6Ul6mHjKPR/3XdUzUOIYp4Q/Az14 0fTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=lXJcON4uIxpNxBwaXZsOO47XJesOn1/BpUPO8EArG+w=; b=aZKfw+C3nckd3MR1rF4CM2GJFkOyR1ermpybNDRu8FjJnOYTLzS74F62wO6rOo7EB/ mCzJyMoGZ/Kkm0oiEXdTA9LEZ5yI+pWVCgr7r31RA5LWyB+3F8DsOPsEPK+kGdCp4hep UI7CorNAdbfRToN8caISlCKbzepsIXYSIDIPHN21662vWqIA7V1qPULH+FbYp/kswakJ GZkPfhnXmJgHeDUNA5Kwv3jbmqL/pcEoHE+zGZ+su4IjjUucgJCo7ybJdkMk6aFt8cqN 5dtBKEVEvBhUa5bxNmDh5UIoFR38g0UUHRL4afe7C/lny3WNriSXyW4gzFSd8legCTsL 6uzA== X-Gm-Message-State: AOAM531sF/AvpuEmhQuvMXCDtiVrfaGrAlPB5jXhhT7Cr8wI/5+7RJni iB0VgI90s4u3b83kERfOBVe4uMdZPbEmjdPmidHVOA== X-Google-Smtp-Source: ABdhPJwu98seAlM8B/W6iEB7Cgc17dFjE0Ji2BN+7kajKF3ry3QeBw893G/4FHc1aJT4/bDywXnEMDItzUTJpwb33p8= X-Received: by 2002:a05:6214:15ce:: with SMTP id p14mr15030956qvz.159.1590400624833; Mon, 25 May 2020 02:57:04 -0700 (PDT) MIME-Version: 1.0 References: <20200522020212.23460-1-walter-zh.wu@mediatek.com> In-Reply-To: <20200522020212.23460-1-walter-zh.wu@mediatek.com> From: Dmitry Vyukov Date: Mon, 25 May 2020 11:56:53 +0200 Message-ID: Subject: Re: [PATCH v6 4/4] kasan: update documentation for generic kasan To: Walter Wu Cc: Andrey Ryabinin , Alexander Potapenko , Jonathan Corbet , kasan-dev , Linux-MM , LKML , Linux ARM , wsd_upstream , linux-mediatek@lists.infradead.org Content-Type: text/plain; charset="UTF-8" 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: On Fri, May 22, 2020 at 4:02 AM Walter Wu wrote: > > Generic KASAN will support to record the last two call_rcu() call stacks > and print them in KASAN report. So that need to update documentation. Reviewed-and-tested-by: Dmitry Vyukov > Signed-off-by: Walter Wu > Cc: Andrey Ryabinin > Cc: Dmitry Vyukov > Cc: Alexander Potapenko > Cc: Jonathan Corbet > --- > Documentation/dev-tools/kasan.rst | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst > index c652d740735d..fede42e6536b 100644 > --- a/Documentation/dev-tools/kasan.rst > +++ b/Documentation/dev-tools/kasan.rst > @@ -193,6 +193,9 @@ function calls GCC directly inserts the code to check the shadow memory. > This option significantly enlarges kernel but it gives x1.1-x2 performance > boost over outline instrumented kernel. > > +Generic KASAN prints up to 2 call_rcu() call stacks in reports, the last one > +and the second to last. > + > Software tag-based KASAN > ~~~~~~~~~~~~~~~~~~~~~~~~ > > -- > 2.18.0 > > -- > You received this message because you are subscribed to the Google Groups "kasan-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/20200522020212.23460-1-walter-zh.wu%40mediatek.com.