Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756090AbcDDQAw (ORCPT ); Mon, 4 Apr 2016 12:00:52 -0400 Received: from casper.infradead.org ([85.118.1.10]:40190 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932368AbcDDQAu (ORCPT ); Mon, 4 Apr 2016 12:00:50 -0400 Date: Mon, 4 Apr 2016 18:00:42 +0200 From: Peter Zijlstra To: Andy Lutomirski Cc: Jan Kara , Paolo Bonzini , xen-devel , Arjan van de Ven , Borislav Petkov , X86 ML , Andrew Morton , Petr Mladek , KVM list , "linux-kernel@vger.kernel.org" , Linus Torvalds Subject: Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception Message-ID: <20160404160042.GB3448@twins.programming.kicks-ass.net> References: <4085070316fc3ab29538d3fcfe282648d1d4ee2e.1459605520.git.luto@kernel.org> <20160402183919.GA2538@pd.tnic> <20160402204752.GC2538@pd.tnic> <20160404115206.GG8372@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 298 Lines: 10 On Mon, Apr 04, 2016 at 08:32:21AM -0700, Andy Lutomirski wrote: > Adding locking would be easy enough, wouldn't it? See patch in this thread.. > But do any platforms really boot a second CPU before switching to real > printk? I _only_ use early_printk() as printk() is a quagmire of fail :-)