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=-2.3 required=3.0 tests=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 9D96AC2D0C2 for ; Mon, 30 Dec 2019 17:35:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F2282071E for ; Mon, 30 Dec 2019 17:35:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727543AbfL3RfN (ORCPT ); Mon, 30 Dec 2019 12:35:13 -0500 Received: from muru.com ([72.249.23.125]:49732 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726602AbfL3RfM (ORCPT ); Mon, 30 Dec 2019 12:35:12 -0500 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id 2EFF68027; Mon, 30 Dec 2019 17:35:51 +0000 (UTC) Date: Mon, 30 Dec 2019 09:35:07 -0800 From: Tony Lindgren To: Pavel Machek Cc: kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, sre@kernel.org, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org, martin_rysavy@centrum.cz Subject: Re: Droid 4 on 5.5-rc3 Message-ID: <20191230173507.GM35479@atomide.com> References: <20191228162929.GA29269@duo.ucw.cz> <20191228193622.GA13047@duo.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191228193622.GA13047@duo.ucw.cz> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Pavel Machek [191228 19:37]: > Hi! > > > 5.4-based kernel works ok on my droid 4. > > > > 5.5-rc3 based kernel has problems; it reboots when I try to kexec it. > > > > Vanilla 5.5-rc3 reboots, too. > > > > If you have any ideas, let me know. > > I managed to get partial serial dump. This should be 5.5-rc3: And then > a bit better serial dump (below). But it is silent for few seconds, > and then it restarts... If spi or regulators have problems, nothing will really work.. > 885955] ------------[ cut here ]------------ > [ 1.890624] WARNING: CPU: 0 PID: 1 at /data/fast/l/k/drivers/regulator/core.c > [ 1.900421] Modules linked in: > [ 1.903533] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc3-00624-g46cf00 > [ 1.911651] Hardware name: Generic OMAP4 (Flattened Device Tree) > [ 1.917724] [] (unwind_backtrace) from [] (show_stack+0x) > [ 1.925537] [] (show_stack) from [] (dump_stack+0xb4/0xd) > [ 1.932800] [] (dump_stack) from [] (__warn+0xc8/0xf0) > [ 1.939727] [] (__warn) from [] (warn_slowpath_fmt+0x8c/) > [ 1.947235] [] (warn_slowpath_fmt) from [] (_regulator_p) > [ 1.955474] [] (_regulator_put) from [] (regulator_put+0) > [ 1.963348] [] (regulator_put) from [] (release_nodes+0x) > [ 1.971313] [] (release_nodes) from [] (really_probe+0x1) > [ 1.979187] [] (really_probe) from [] (driver_probe_devi) > [ 1.987518] [] (driver_probe_device) from [] (bus_for_ea) > [ 1.996093] [] (bus_for_each_drv) from [] (__device_atta) > [ 2.004394] [] (__device_attach) from [] (bus_probe_devi) > [ 2.012634] [] (bus_probe_device) from [] (device_add+0x) > [ 2.020599] [] (device_add) from [] (platform_device_add) > [ 2.028747] [] (platform_device_add) from [] (mfd_add_de) > [ 2.037414] [] (mfd_add_devices) from [] (devm_mfd_add_d) > [ 2.045989] [] (devm_mfd_add_devices) from [] (cpcap_pro) > [ 2.054382] [] (cpcap_probe) from [] (spi_drv_probe+0x80) > [ 2.061981] [] (spi_drv_probe) from [] (really_probe+0x1) > [ 2.069854] [] (really_probe) from [] (driver_probe_devi) > [ 2.078186] [] (driver_probe_device) from [] (bus_for_ea) > [ 2.086761] [] (bus_for_each_drv) from [] (__device_atta) > [ 2.095062] [] (__device_attach) from [] (bus_probe_devi) > [ 2.103302] [] (bus_probe_device) from [] (device_add+0x) > [ 2.111267] [] (device_add) from [] (spi_add_device+0x8c) > [ 2.118957] [] (spi_add_device) from [] (spi_register_co) > [ 2.127868] [] (spi_register_controller) from [] (devm_s) > [ 2.137847] [] (devm_spi_register_controller) from [] (o) > [ 2.147460] [] (omap2_mcspi_probe) from [] (platform_drv) I'm not seeing this with v5.5-rc4 though, maybe it already got fixed? Regards, Tony