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=-2.5 required=3.0 tests=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 3652FC43219 for ; Fri, 26 Apr 2019 17:08:46 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 868F6208CA for ; Fri, 26 Apr 2019 17:08:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 868F6208CA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 44rL9l1Fl8zDqXb for ; Sat, 27 Apr 2019 03:08:43 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=permerror (mailfrom) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 44rL822rXWzDqXN for ; Sat, 27 Apr 2019 03:07:13 +1000 (AEST) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id x3QH71Zl020372; Fri, 26 Apr 2019 12:07:01 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id x3QH70Zw020369; Fri, 26 Apr 2019 12:07:00 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Fri, 26 Apr 2019 12:07:00 -0500 From: Segher Boessenkool To: Serge Belyshev Subject: Re: BUG: crash in __tlb_remove_page_size with STRICT_KERNEL_RWX on BOOK3S_32 Message-ID: <20190426170700.GD8599@gate.crashing.org> References: <87pnp9mknl.fsf@depni.sinp.msu.ru> <878svwn85h.fsf@depni.sinp.msu.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <878svwn85h.fsf@depni.sinp.msu.ru> User-Agent: Mutt/1.4.2.3i X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Fri, Apr 26, 2019 at 05:38:50PM +0300, Serge Belyshev wrote: > ---[ Instruction Block Address Translation ]--- > 0: 0xc0000000-0xc07fffff 0x00000000 Kernel EXEC coherent > 1: 0xc0800000-0xc087ffff 0x00800000 Kernel EXEC coherent > 2: - > 3: - > 4: - > 5: - > 6: - > 7: - > > ---[ Data Block Address Translation ]--- > 0: 0xc0000000-0xc07fffff 0x00000000 Kernel RO coherent > 1: 0xc0800000-0xc0bfffff 0x00800000 Kernel RO coherent > 2: 0xc0c00000-0xc13fffff 0x00c00000 Kernel RW coherent > 3: 0xc1400000-0xc23fffff 0x01400000 Kernel RW coherent > 4: 0xc2400000-0xc43fffff 0x02400000 Kernel RW coherent > 5: 0xc4400000-0xc83fffff 0x04400000 Kernel RW coherent > 6: 0xc8400000-0xd03fffff 0x08400000 Kernel RW coherent > 7: 0xd0400000-0xe03fffff 0x10400000 Kernel RW coherent The starting address of a BAT block is always aligned to the block size. All of DBAT2..DBAT7 are wrong? Segher