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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:39068) by pandora.armlinux.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l7d4d-0006V8-GY; Thu, 04 Feb 2021 11:45:23 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1l7d3c-00058V-FB; Thu, 04 Feb 2021 11:44:20 +0000 Date: Thu, 4 Feb 2021 11:44:20 +0000 From: Russell King - ARM Linux admin To: Guillaume Tucker Subject: Re: next/master bisection: baseline.login on rk3288-rock2-square Message-ID: <20210204114420.GW1463@shell.armlinux.org.uk> References: <601b773a.1c69fb81.9f381.a32a@mx.google.com> <6c65bcef-d4e7-25fa-43cf-2c435bb61bb9@collabora.com> <20210204100601.GT1463@shell.armlinux.org.uk> <46373679-a149-8a3d-e914-780e4c6ff8be@collabora.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <46373679-a149-8a3d-e914-780e4c6ff8be@collabora.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210204_064527_633638_CFA7EFA3 X-CRM114-Status: GOOD ( 13.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "kernelci-results@groups.io" , Geert Uytterhoeven , Nicolas Pitre , Linus Walleij , Nick Desaulniers , Linux Kernel Mailing List , clang-built-linux , Ard Biesheuvel , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Feb 04, 2021 at 11:32:05AM +0000, Guillaume Tucker wrote: > Yes it does fix the issue: > > https://lava.collabora.co.uk/scheduler/job/3173819 > > with Ard's fix applied to this test branch: > > https://gitlab.collabora.com/gtucker/linux/-/commits/next-20210203-ard-fix/ > > > +clang +Nick > > It's worth mentioning that the issue only happens with kernels > built with Clang. As you can see there are several other arm > platforms failing with clang-11 builds but booting fine with > gcc-8: My gut feeling is that it isn't Clang specific - it's likely down to the exact code/data placement, how things end up during decompression, and exactly what state the cache ends up in. That certainly was the case with the original regression. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel