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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 4EF3FC04EBD for ; Tue, 16 Oct 2018 07:23:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 115C020881 for ; Tue, 16 Oct 2018 07:23:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Y63UnSNm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 115C020881 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org 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 S1727303AbeJPPMp (ORCPT ); Tue, 16 Oct 2018 11:12:45 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:40238 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726977AbeJPPMp (ORCPT ); Tue, 16 Oct 2018 11:12:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=DYXwqZglBkOAyqaCfAC6jbxJ/QNM9FovU4Xwb/DO0j8=; b=Y63UnSNm4mEIo7FQLEA1bIS2H g5yeEGUwBBASn9c91k9TTnfgaLFRbiRx9PYvaDQmnTeTQBENEvq+1zA9OybO2B85ApJenr98pcXVq kVPtt9w4TBF8QbWGCP6KEhOQvOxNcLmv364Ywgw2LwOM9axOphK0LxAm8N79vrb0I1RaBpf175PGQ OVDI+R/gdpykm3vFHyvMJFmx99PJ1uA+jKCUYSewYOh/1cC16fqPKVCYZ0ePpPYkhNU0roWbmK4ef MIWYGEJDra0JCNqAW7b4IUK7MHS1xTOafudeDrBEfCO4jKhMIpM+bxnmndQRJzOkYwnxk5JqkDgfl p/hR27Ekw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gCJhT-0000HU-KN; Tue, 16 Oct 2018 07:23:31 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id A5EE620297B77; Tue, 16 Oct 2018 09:23:28 +0200 (CEST) Date: Tue, 16 Oct 2018 09:23:28 +0200 From: Peter Zijlstra To: Sergey Senozhatsky Cc: linux-kernel@vger.kernel.org, Petr Mladek , Steven Rostedt , Daniel Wang , Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , Alan Cox , Jiri Slaby , Peter Feiner , linux-serial@vger.kernel.org, Sergey Senozhatsky Subject: Re: [RFC][PATCHv2 0/4] less deadlock prone serial consoles Message-ID: <20181016072328.GA4030@hirez.programming.kicks-ass.net> References: <20181016050428.17966-1-sergey.senozhatsky@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181016050428.17966-1-sergey.senozhatsky@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 16, 2018 at 02:04:24PM +0900, Sergey Senozhatsky wrote: > Hello, > > > RFC > > > The patch set reduces the number of ways serial consoles > can deadlock the system, including the recently reported deadlock > in panic(). That's what I use early_printk for... :-)