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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F2F1C4332F for ; Tue, 22 Nov 2022 09:23:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232736AbiKVJXU (ORCPT ); Tue, 22 Nov 2022 04:23:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232108AbiKVJXR (ORCPT ); Tue, 22 Nov 2022 04:23:17 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2CD420F4E; Tue, 22 Nov 2022 01:23:15 -0800 (PST) Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id B95126602AC7; Tue, 22 Nov 2022 09:23:13 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1669108994; bh=+mlBG/PJoJUc9mB4Fvqa/9O1jnPv1xX0SkB4mOqIHso=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=oATMFKxm8m+2BgI44UwSDJAtyNhdFHigDVbG6Z/9SiyBYFGV3ZSsbTLtST5gWh4KS WJBQZWAGGa15Wiouudki0IYlWOUr+2EMIMnTehAUHfNbLwtF+sLHKydXIjqxCUz0AU LuMRfxHk7vmryAUL9TDH1bxQDN8kjiY3HKNWtUu4CjarTpgLJ2tq8+RycPBNTjCLuy PBnTp5ozH8QzSoabVMpb2uQqPng+rhyMbWe7oP8MxvyyQGyDwxugiijioK/ssdQRYx q8cLwz48saX8Ksw857B93cNidbMc2/zl9LtpiF5RnE1QzdeoCkggEj5A96UEpZx51M nfOBhknwD4Q5g== Message-ID: Date: Tue, 22 Nov 2022 10:23:11 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.0 Subject: Re: [PATCH v1 1/1] pinctrl: meditatek: Startup with the IRQs disabled Content-Language: en-US To: Ricardo Ribalda , Linus Walleij , Matthias Brugger , Sean Wang Cc: Steven Rostedt , Ross Zwisler , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Sergey Senozhatsky , "Joel Fernandes (Google)" References: <20221122-mtk-pinctrl-v1-0-bedf5655a3d2@chromium.org> <20221122-mtk-pinctrl-v1-1-bedf5655a3d2@chromium.org> From: AngeloGioacchino Del Regno In-Reply-To: <20221122-mtk-pinctrl-v1-1-bedf5655a3d2@chromium.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 22/11/22 00:38, Ricardo Ribalda ha scritto: > If the system is restarted via kexec(), the peripherals do not start > with a known state. > > If the previous system had enabled an IRQs we will receive unexected > IRQs that can lock the system. > > [ 28.109251] watchdog: BUG: soft lockup - CPU#0 stuck for 26s! > [swapper/0:0] > [ 28.109263] Modules linked in: > [ 28.109273] CPU: 0 PID: 0 Comm: swapper/0 Not tainted > 5.15.79-14458-g4b9edf7b1ac6 #1 9f2e76613148af94acccd64c609a552fb4b4354b > [ 28.109284] Hardware name: Google Elm (DT) > [ 28.109290] pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS > BTYPE=--) > [ 28.109298] pc : __do_softirq+0xa0/0x388 > [ 28.109309] lr : __do_softirq+0x70/0x388 > [ 28.109316] sp : ffffffc008003ee0 > [ 28.109321] x29: ffffffc008003f00 x28: 000000000000000a x27: > 0000000000000080 > [ 28.109334] x26: 0000000000000001 x25: ffffffefa7b350c0 x24: > ffffffefa7b47480 > [ 28.109346] x23: ffffffefa7b3d000 x22: 0000000000000000 x21: > ffffffefa7b0fa40 > [ 28.109358] x20: ffffffefa7b005b0 x19: ffffffefa7b47480 x18: > 0000000000065b6b > [ 28.109370] x17: ffffffefa749c8b0 x16: 000000000000018c x15: > 00000000000001b8 > [ 28.109382] x14: 00000000000d3b6b x13: 0000000000000006 x12: > 0000000000057e91 > [ 28.109394] x11: 0000000000000000 x10: 0000000000000000 x9 : > ffffffefa7b47480 > [ 28.109406] x8 : 00000000000000e0 x7 : 000000000f424000 x6 : > 0000000000000000 > [ 28.109418] x5 : ffffffefa7dfaca0 x4 : ffffffefa7dfadf0 x3 : > 000000000000000f > [ 28.109429] x2 : 0000000000000000 x1 : 0000000000000100 x0 : > 0000000001ac65c5 > [ 28.109441] Call trace: > [ 28.109447] __do_softirq+0xa0/0x388 > [ 28.109454] irq_exit+0xc0/0xe0 > [ 28.109464] handle_domain_irq+0x68/0x90 > [ 28.109473] gic_handle_irq+0xac/0xf0 > [ 28.109480] call_on_irq_stack+0x28/0x50 > [ 28.109488] do_interrupt_handler+0x44/0x58 > [ 28.109496] el1_interrupt+0x30/0x58 > [ 28.109506] el1h_64_irq_handler+0x18/0x24 > [ 28.109512] el1h_64_irq+0x7c/0x80 > [ 28.109519] arch_local_irq_enable+0xc/0x18 > [ 28.109529] default_idle_call+0x40/0x140 > [ 28.109539] do_idle+0x108/0x290 > [ 28.109547] cpu_startup_entry+0x2c/0x30 > [ 28.109554] rest_init+0xe8/0xf8 > [ 28.109562] arch_call_rest_init+0x18/0x24 > [ 28.109571] start_kernel+0x338/0x42c > [ 28.109578] __primary_switched+0xbc/0xc4 > [ 28.109588] Kernel panic - not syncing: softlockup: hung tasks > > Signed-off-by: Ricardo Ribalda Reviewed-by: AngeloGioacchino Del Regno