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[209.132.180.67]) by mx.google.com with ESMTP id y4si5133525eds.288.2019.11.28.00.08.48; Thu, 28 Nov 2019 00:09:13 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@c-s.fr header.s=mail header.b=dyDBE4cz; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727262AbfK1IGx (ORCPT + 99 others); Thu, 28 Nov 2019 03:06:53 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:6328 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726301AbfK1IGx (ORCPT ); Thu, 28 Nov 2019 03:06:53 -0500 Received: from localhost (mailhub1-ext [192.168.12.233]) by localhost (Postfix) with ESMTP id 47Nqwq3STlz9ty0Y; Thu, 28 Nov 2019 09:06:51 +0100 (CET) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=dyDBE4cz; dkim-adsp=pass; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id mgpN2mQI7JlB; Thu, 28 Nov 2019 09:06:51 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 47Nqwq2FZrz9ty0T; Thu, 28 Nov 2019 09:06:51 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1574928411; bh=r0UjyHYvteSzLuUih/qEKzzmGw4ED7wqOOic8C4w5SA=; h=Subject:From:To:Cc:References:Date:In-Reply-To:From; b=dyDBE4czf+EVa7HddAfrip5wNrdAXpxfQppTvkKZyv4sMXgEaMYcWNXHWKi0ttugQ 0Dpwk6SvIFZ+81slLnonUt1xeydEFkqqtVamutMVtyiFLsrpP7zWzfliuQTw5OurYG USk2sUpqVviGeSmwEBSlYaNiEcG53eDCKpSWMb0M= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 40CA28B787; Thu, 28 Nov 2019 09:06:52 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id TDIdejapCBoz; Thu, 28 Nov 2019 09:06:52 +0100 (CET) Received: from [172.25.230.103] (po15451.idsi0.si.c-s.fr [172.25.230.103]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 1CD438B767; Thu, 28 Nov 2019 09:06:52 +0100 (CET) Subject: Re: [PATCH v1 1/4] powerpc/fixmap: don't clear fixmap area in paging_init() From: Christophe Leroy To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , npiggin@gmail.com, hch@infradead.org Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org References: <47MQrc6TCxz9sPV@ozlabs.org> Message-ID: <51c97c23-251d-90d9-0c52-41ef55c9f4c9@c-s.fr> Date: Thu, 28 Nov 2019 09:06:52 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 27/11/2019 à 15:43, Christophe Leroy a écrit : > > > Le 26/11/2019 à 02:13, Michael Ellerman a écrit : >> On Thu, 2019-09-12 at 13:49:41 UTC, Christophe Leroy wrote: >>> fixmap is intended to map things permanently like the IMMR region on >>> FSL SOC (8xx, 83xx, ...), so don't clear it when initialising paging() >>> >>> Signed-off-by: Christophe Leroy >> >> Applied to powerpc next, thanks. >> >> https://git.kernel.org/powerpc/c/f2bb86937d86ebcb0e52f95b6d19aba1d850e601 >> > > Hi, > > What happened ? > > It looks like it is gone in today's powerpc next. > I see it back today in powerpc/merge, thanks. The issue is it is crashing with HIGHMEM, indeed exactly the same as you saw with "[PATCH] powerpc/8xx: Fix permanently mapped IMMR region.", since that was exactly the same code. I sent a fix for it, and I also rebased "[PATCH] powerpc/8xx: Fix permanently mapped IMMR region." into v2 to exclude from it the already merged part. It would be wise if you could merge both. Thanks Christophe