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=-5.3 required=3.0 tests=BAYES_00, 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 949AFC433E0 for ; Fri, 8 Jan 2021 10:32:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5231F23788 for ; Fri, 8 Jan 2021 10:32:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726862AbhAHKcJ (ORCPT ); Fri, 8 Jan 2021 05:32:09 -0500 Received: from jabberwock.ucw.cz ([46.255.230.98]:59722 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725984AbhAHKcJ (ORCPT ); Fri, 8 Jan 2021 05:32:09 -0500 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 50E001C0B88; Fri, 8 Jan 2021 11:31:10 +0100 (CET) Date: Fri, 8 Jan 2021 11:31:10 +0100 From: Pavel Machek To: Theodore Ts'o Cc: Russell King - ARM Linux admin , Arnd Bergmann , Will Deacon , linux-toolchains@vger.kernel.org, Mark Rutland , "linux-kernel@vger.kernel.org" , Andreas Dilger , Ext4 Developers List , Linux ARM Subject: Re: Aarch64 EXT4FS inode checksum failures - seems to be weak memory ordering issues Message-ID: <20210108103109.GA23265@duo.ucw.cz> References: <20210105154726.GD1551@shell.armlinux.org.uk> <20210106115359.GB26994@C02TD0UTHF1T.local> <20210106135253.GJ1551@shell.armlinux.org.uk> <20210106172033.GA2165@willie-the-truck> <20210106223223.GM1551@shell.armlinux.org.uk> <20210107111841.GN1551@shell.armlinux.org.uk> <20210107124506.GO1551@shell.armlinux.org.uk> <20210107133747.GP1551@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="envbJBWh7q8WU6mo" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-toolchains@vger.kernel.org --envbJBWh7q8WU6mo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > The gcc bugzilla mentions backports into gcc-linaro, but I do not see > > > them in my git history. > >=20 > > So, do we raise the minimum gcc version for the kernel as a whole to 5.1 > > or just for aarch64? >=20 > Russell, Arnd, thanks so much for tracking down the root cause of the > bug! >=20 > I will note that RHEL 7 uses gcc 4.8. I personally don't have an > objections to requiring developers using RHEL 7 to have to install a > more modern gcc (since I use Debian Testing and gcc 10.2.1, myself, > and gcc 5.1 is so five years ago :-), but I could imagine that being > considered inconvenient for some. I'm on gcc 4.9.2 on a machine that is hard to upgrade :-(. Best regards, Pavel --=20 http://www.livejournal.com/~pavelmachek --envbJBWh7q8WU6mo Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCX/g0bQAKCRAw5/Bqldv6 8pyYAJoC5zO0PTOA6H3eh72g3UUzmjmDdACggNwbZUNV+58zQH7zPdNsq1KIARg= =u1Av -----END PGP SIGNATURE----- --envbJBWh7q8WU6mo--