From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Date: Thu, 05 Dec 2019 22:56:10 +0000 Subject: Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu_gather Message-Id: <20191205225610.GB2532@roeck-us.net> List-Id: References: <20190219103148.192029670@infradead.org> <20190219103233.443069009@infradead.org> <20191204104733.GR2844@hirez.programming.kicks-ass.net> <3c83eaec-8f33-1b90-1c70-9e7c1c8b1855@physik.fu-berlin.de> In-Reply-To: <3c83eaec-8f33-1b90-1c70-9e7c1c8b1855@physik.fu-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: John Paul Adrian Glaubitz Cc: Peter Zijlstra , Geert Uytterhoeven , Will Deacon , "Aneesh Kumar K.V" , Andrew Morton , Nicholas Piggin , Linux-Arch , Linux MM , Linux Kernel Mailing List , Russell King , Heiko Carstens , Rik van Riel , Yoshinori Sato , Rich Felker , Linux-sh list On Thu, Dec 05, 2019 at 08:30:17PM +0100, John Paul Adrian Glaubitz wrote: > Hi! > > On 12/4/19 11:47 AM, Peter Zijlstra wrote: > >> I got remote access to an SH7722-based Migo-R again, which spews a long > >> sequence of BUGs during userspace startup. I've bisected this to commit > >> c5b27a889da92f4a ("sh/tlb: Convert SH to generic mmu_gather"). > > > > Whoopsy.. also, is this really the first time anybody booted an SH > > kernel in over a year ?!? > > I have to admit, I have been very lazy with kernel updates. I have been > planning to upgrade to a much more recent release on my boards for a while > now, I have just been postponing it since the machines run very stable > with the current kernel I am using. > Hey, if you write a qemu emulation, I'll be happy to run it on a regular basis :-) Problem is really that the architecture doesn't get as much attention as it needs. The backtrace pointed to by Rob has been seen for a long time, but either there is no one with the knowledge to fix it, or they are all busy with other stuff. Guenter > Adrian > > -- > .''`. John Paul Adrian Glaubitz > : :' : Debian Developer - glaubitz@debian.org > `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de > `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 CFE9BC43603 for ; Thu, 5 Dec 2019 22:56:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A00AD24670 for ; Thu, 5 Dec 2019 22:56:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="TcJxvXps" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726151AbfLEW4N (ORCPT ); Thu, 5 Dec 2019 17:56:13 -0500 Received: from mail-pj1-f67.google.com ([209.85.216.67]:42348 "EHLO mail-pj1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725959AbfLEW4M (ORCPT ); Thu, 5 Dec 2019 17:56:12 -0500 Received: by mail-pj1-f67.google.com with SMTP id o11so1876677pjp.9; Thu, 05 Dec 2019 14:56:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=IDeK7oOW0B9CNYnGbhlUWhfaYDqmeePr7B16rf7vuug=; b=TcJxvXpsivxWne6OpmZopXg+nQiC+1jQ/foJ47anY56k0POIuLQce7VaiLsrSG+Rdq yiKg63sLTxBwMA2qld4SudrloQ8suHPXRFYdyYhCP6fL1h948ENgH/kMwxUJ7onxe3eD TcOsmz0CywRwGQCzD1y/ybQ7TPUQcxtQ9eyvgGu8EyAKqpn80rP+5xlsBe5+pWXowMsg MHQS4RzIXQu15CB4NOjusttvAW38VyS3y5uJbevX0UvFXRmfP46FZj6JocHsPQzA3tAo lGAHWYrodz1yA0XU8UNcwBLMzNZUUjNcgFRcjhyIzJ7gMjXTng8XW24Ecp3T+jOtUcnG IvKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=IDeK7oOW0B9CNYnGbhlUWhfaYDqmeePr7B16rf7vuug=; b=diyfIMvXR5Oqn8Da42y2jwdBHYOu+oO9wJyiroD+jIi8twJN0l8Q5nLL1v5za1Jfvv zLnzfn4QD3ySmqV6zNEMsr2uN6CF8KiFwHfsQeUs03oEuTZnSuvRAZAp73J3ZdxS3Mz4 ByKvXV2E4pDCBxKkYeT1fHlsJPpU2Jil+rfqHixswfdyDxdlyPnCNcWG7nJBzjdIril5 ZRXJdZ6zSvUNTyLwdw+ZFAWvnKo4AyDbUdxYWJ3ffAwl6QzP9gdvEhYVnuzvQCQ4S5zw kxTwylTRuEFqbp4DJQNyQlJNJPxLKX7kM2xt8S9bdI59byLypLMsJsQjutHWjVFmPMJL 0Ldw== X-Gm-Message-State: APjAAAU43IzGKM8Q7vFpD+lwBr6o06TQRC1nVUBGQ6fUzJ7BVjnuNsWO pfzIz2DKgyPgzE094EQJas0= X-Google-Smtp-Source: APXvYqxHzb65lDkdIjAVkQB89RP4XhIHPS1Szd01E5+eADPQbmpWTvCZzqaJVF3j5vmxirtTRjda4w== X-Received: by 2002:a17:90a:868b:: with SMTP id p11mr12140247pjn.60.1575586571954; Thu, 05 Dec 2019 14:56:11 -0800 (PST) Received: from localhost ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id k3sm3746371pgc.3.2019.12.05.14.56.10 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 05 Dec 2019 14:56:11 -0800 (PST) Date: Thu, 5 Dec 2019 14:56:10 -0800 From: Guenter Roeck To: John Paul Adrian Glaubitz Cc: Peter Zijlstra , Geert Uytterhoeven , Will Deacon , "Aneesh Kumar K.V" , Andrew Morton , Nicholas Piggin , Linux-Arch , Linux MM , Linux Kernel Mailing List , Russell King , Heiko Carstens , Rik van Riel , Yoshinori Sato , Rich Felker , Linux-sh list Subject: Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu_gather Message-ID: <20191205225610.GB2532@roeck-us.net> References: <20190219103148.192029670@infradead.org> <20190219103233.443069009@infradead.org> <20191204104733.GR2844@hirez.programming.kicks-ass.net> <3c83eaec-8f33-1b90-1c70-9e7c1c8b1855@physik.fu-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3c83eaec-8f33-1b90-1c70-9e7c1c8b1855@physik.fu-berlin.de> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 05, 2019 at 08:30:17PM +0100, John Paul Adrian Glaubitz wrote: > Hi! > > On 12/4/19 11:47 AM, Peter Zijlstra wrote: > >> I got remote access to an SH7722-based Migo-R again, which spews a long > >> sequence of BUGs during userspace startup. I've bisected this to commit > >> c5b27a889da92f4a ("sh/tlb: Convert SH to generic mmu_gather"). > > > > Whoopsy.. also, is this really the first time anybody booted an SH > > kernel in over a year ?!? > > I have to admit, I have been very lazy with kernel updates. I have been > planning to upgrade to a much more recent release on my boards for a while > now, I have just been postponing it since the machines run very stable > with the current kernel I am using. > Hey, if you write a qemu emulation, I'll be happy to run it on a regular basis :-) Problem is really that the architecture doesn't get as much attention as it needs. The backtrace pointed to by Rob has been seen for a long time, but either there is no one with the knowledge to fix it, or they are all busy with other stuff. Guenter > Adrian > > -- > .''`. John Paul Adrian Glaubitz > : :' : Debian Developer - glaubitz@debian.org > `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de > `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913