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=-7.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 CA934C3F2C6 for ; Tue, 3 Mar 2020 13:47:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A817720838 for ; Tue, 3 Mar 2020 13:47:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728976AbgCCNrF (ORCPT ); Tue, 3 Mar 2020 08:47:05 -0500 Received: from foss.arm.com ([217.140.110.172]:47272 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728877AbgCCNrF (ORCPT ); Tue, 3 Mar 2020 08:47:05 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9DC8CFEC; Tue, 3 Mar 2020 05:47:04 -0800 (PST) Received: from [10.1.196.37] (e121345-lin.cambridge.arm.com [10.1.196.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4043D3F6C4; Tue, 3 Mar 2020 05:47:03 -0800 (PST) Subject: Re: sunxi: a83t: does not boot anymore in BigEndian To: Corentin Labbe , maz@kernel.org, wens@csie.org, mripard@kernel.org Cc: mark.rutland@arm.com, lorenzo.pieralisi@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux@armlinux.org.uk References: <20200303074326.GA9935@Red> From: Robin Murphy Message-ID: <65498b8e-a6c3-9edb-873f-6c011582a2eb@arm.com> Date: Tue, 3 Mar 2020 13:47:02 +0000 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200303074326.GA9935@Red> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/03/2020 7:43 am, Corentin Labbe wrote: > Hello > > My sun8i-a83t-bananapi-m3 does not boot anymore in BE. > Others sunxi platform I have seems not affected (a10, a20, a64, h3, h5, h6) > > I have bisected this problem: > git bisect start > # bad: [98d54f81e36ba3bf92172791eba5ca5bd813989b] Linux 5.6-rc4 > git bisect bad 98d54f81e36ba3bf92172791eba5ca5bd813989b > # bad: [d5226fa6dbae0569ee43ecfc08bdcd6770fc4755] Linux 5.5 > git bisect bad d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 > # good: [219d54332a09e8d8741c1e1982f5eae56099de85] Linux 5.4 > git bisect good 219d54332a09e8d8741c1e1982f5eae56099de85 > # bad: [8c39f71ee2019e77ee14f88b1321b2348db51820] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net > git bisect bad 8c39f71ee2019e77ee14f88b1321b2348db51820 > # bad: [3b397c7ccafe0624018cb09fc96729f8f6165573] Merge tag 'regmap-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap > git bisect bad 3b397c7ccafe0624018cb09fc96729f8f6165573 > # good: [924ea58dadea23cc28b60d02b9c0896b7b168a6f] Merge tag 'mt76-for-kvalo-2019-11-20' of https://github.com/nbd168/wireless > git bisect good 924ea58dadea23cc28b60d02b9c0896b7b168a6f > # good: [3f3c8be973af10875cfa1e7b85a535b6ba76b44f] Merge tag 'for-linus-5.5a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip > git bisect good 3f3c8be973af10875cfa1e7b85a535b6ba76b44f > # bad: [642356cb5f4a8c82b5ca5ebac288c327d10df236] Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 > git bisect bad 642356cb5f4a8c82b5ca5ebac288c327d10df236 > # good: [57d8154f15e89f53dfb412f4ed32ebe3c3d755a0] crypto: atmel-aes - Change data type for "lastc" buffer > git bisect good 57d8154f15e89f53dfb412f4ed32ebe3c3d755a0 > # bad: [752272f16dd18f2cac58a583a8673c8e2fb93abb] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm > git bisect bad 752272f16dd18f2cac58a583a8673c8e2fb93abb > # good: [9477f4449b0b011ce1d058c09ec450bfcdaab784] KVM: VMX: Add helper to check reserved bits in IA32_PERF_GLOBAL_CTRL > git bisect good 9477f4449b0b011ce1d058c09ec450bfcdaab784 > # bad: [cd7056ae34af0e9424da97bbc7d2b38246ba8a2c] Merge remote-tracking branch 'kvmarm/misc-5.5' into kvmarm/next > git bisect bad cd7056ae34af0e9424da97bbc7d2b38246ba8a2c > # bad: [c7892db5dd6afe921ead502aff7440a1e450d947] KVM: arm64: Select TASK_DELAY_ACCT+TASKSTATS rather than SCHEDSTATS > git bisect bad c7892db5dd6afe921ead502aff7440a1e450d947 > # bad: [8564d6372a7d8a6d440441b8ed8020f97f744450] KVM: arm64: Support stolen time reporting via shared structure > git bisect bad 8564d6372a7d8a6d440441b8ed8020f97f744450 > # bad: [55009c6ed2d24fc0f5521ab2482f145d269389ea] KVM: arm/arm64: Factor out hypercall handling from PSCI code > git bisect bad 55009c6ed2d24fc0f5521ab2482f145d269389ea > # bad: [6a7458485b390f48e481fcd4a0b20e6c5c843d2e] KVM: arm64: Document PV-time interface > git bisect bad 6a7458485b390f48e481fcd4a0b20e6c5c843d2e > # bad: [dcac930e9901d765234bc15004db4f7d4416db71] Merge remote-tracking branch 'arm64/for-next/smccc-conduit-cleanup' into kvm-arm64/stolen-time > git bisect bad dcac930e9901d765234bc15004db4f7d4416db71 > # first bad commit: [dcac930e9901d765234bc15004db4f7d4416db71] Merge remote-tracking branch 'arm64/for-next/smccc-conduit-cleanup' into kvm-arm64/stolen-time > > But bisect lead to a merge request. FWIW once you've bisected to a merge commit, you can always then try bisecting down the merged branch itself (i.e. between 5.4-rc3 and e6ea46511b1a in this case) to narrow things down further. Given that that branch is supposed to be a functionally-inert cleanup, and (judging by the DTS) this platform apparently isn't using PSCI anyway, it does seem a bit odd. Can you get any earlycon/earlyprintk output to suggest what the actual cause of the boot failure is? Robin.