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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 A3AFCC1B0F2 for ; Wed, 20 Jun 2018 04:17:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4DCDA20846 for ; Wed, 20 Jun 2018 04:17:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="h9rmTHzl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4DCDA20846 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754240AbeFTERg (ORCPT ); Wed, 20 Jun 2018 00:17:36 -0400 Received: from mail-pf0-f194.google.com ([209.85.192.194]:47102 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750812AbeFTERb (ORCPT ); Wed, 20 Jun 2018 00:17:31 -0400 Received: by mail-pf0-f194.google.com with SMTP id q1-v6so912029pff.13; Tue, 19 Jun 2018 21:17:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=k9vzrTR3cxXzv/I12VHQRSBnPNzsABk7Hz1MBOTxpUc=; b=h9rmTHzlOLAh7fIZyDDynR8wo1MrWTiCKQVx+/dS0AmntXV84+fI0SA+YH7zHlJ55Y nlK4+y6N58Vta6hxcGblU5NzVQs5qAhza8c7WUQfwTMt/4OP3z6MXZfdhPhR7FxLsIO2 oa3xWUfRU3ahjR9gBrzS4fDW4VrC1cKD1mH+IC0us9LdKJruIen7FkYdZaM4tcpr5sta LmYFclFmOUgchFNw4flwk4YP4Xu+Y3I4jNV2KciiOOFqcc1LmInkTvE9r3Oa4Lt3crnK 6eDMYLEFtgjt4M2OZOumoqFHGEAD3z+TXveV4vjMSyLRDBpxbo7+SG2hsxeoCjBP7V48 ZzWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=k9vzrTR3cxXzv/I12VHQRSBnPNzsABk7Hz1MBOTxpUc=; b=UzMcoYo9qW93SZ6M3ylAs0kUKlP5HuClxRXZCVjS91eLMJlvlEysJmi7MAK2J0FfEd mvf7TcOJFN5rrX1hVEvzZmKspLkrsihD/79X7FgKHDcSqkbLBu4DvKLQ+I0LJ3dXGTs4 nXRrRx/0XPvi4wJqRkJVRs34v3t9abRVGef4mDNAsG+t43ClqFyPDxr/4CTpDAVtBz8i CQ/6RD6oan3vIynWsTreyCpaLGd/hL6YJWJXiIrrAAJzS35NSNxo3JeHbxwBuyAzMSj1 2mhTKUF4VVJ/RhGVD5sIDfwKjptw35GWpAjs3yZz3MtBGbIww792T1NvCpeN0+eYCe+T LpSQ== X-Gm-Message-State: APt69E08S69xFpuzeyjN0++vHlhuhdIB2dRrpPjJ5p3QRpkD76qRhi4G y4ahNOXBl50Twa6/tqhj4gv4uKgT X-Google-Smtp-Source: ADUXVKIvcrXhf73GSBWAaIoFPXjdQenpcEoxEFFgjutBiC+3tT35Dgr724eMuI03Zq9i/0Gy0aHESQ== X-Received: by 2002:a65:608c:: with SMTP id t12-v6mr17630725pgu.159.1529468251227; Tue, 19 Jun 2018 21:17:31 -0700 (PDT) Received: from localhost ([110.70.59.159]) by smtp.gmail.com with ESMTPSA id o87-v6sm1827485pfa.106.2018.06.19.21.17.29 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 19 Jun 2018 21:17:29 -0700 (PDT) Date: Wed, 20 Jun 2018 13:17:26 +0900 From: Sergey Senozhatsky To: Steven Rostedt Cc: Sergey Senozhatsky , Petr Mladek , Sergey Senozhatsky , Peter Zijlstra , Tetsuo Handa , linux-kernel@vger.kernel.org, "4 . 13+" Subject: Re: [PATCH] printk/nmi: Prevent deadlock when serializing NMI backtraces Message-ID: <20180620041726.GG650@jagdpanzerIV> References: <20180606103356.GB19211@tigerII.localdomain> <20180608104825.e7xoxteelaxnwx66@pathway.suse.cz> <20180618063738.GC27996@jagdpanzerIV> <20180618093917.qeaatnlqh5if6t3r@pathway.suse.cz> <20180618100718.GA555@jagdpanzerIV> <20180619075219.iq7ztwu43bn4uua7@pathway.suse.cz> <20180619082716.GD405@jagdpanzerIV> <20180619092304.6b6ba390@gandalf.local.home> <20180620015834.GD650@jagdpanzerIV> <20180619223222.6cf05e0b@vmware.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180619223222.6cf05e0b@vmware.local.home> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (06/19/18 22:32), Steven Rostedt wrote: > On Wed, 20 Jun 2018 10:58:34 +0900 > Sergey Senozhatsky wrote: > > > Which one of these you'd prefer to see in ftrace_dump(): > > > > - printk_nmi_direct_enter() / printk_nmi_direct_exit() > > The above appears to be the most sane. OK. The original name suggested by Petr. -ss