From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC10B28727F for ; Tue, 30 Dec 2025 16:24:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767111877; cv=none; b=UYIENlv8GbQaCCYRsMv9ieAZOFBrDshwntIeO2OpWc/nSMfCimyZ+CE1XNvqDcGNYuOC7xktC+jYXOdQNZw40ZcJxjpu6fyJkI6t4slbZ+yVNHMFAE5CYe+A6RgfNmAT5kOfqZFrtmLm0FltEyPdeNIjsIylCpOa1wUdfp10/Lg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767111877; c=relaxed/simple; bh=kcJx4Chw8iTa6crvHDEcBSzGwBKEtsF0UrxWd1VgPTc=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=S6z8F6lke18sFQub0Xq0ZOfQsfIg0eQaqCl6A7m6/W97qLBVxaq94ZBGEkUBZrb6M+fwcWmnpO2vmjiTj8KkgOM1S4MXHVFwI7zM2V9sGTtyIfCnUjx4utQk0QHDqkeQuxhotKVNYAtvedQA4gP2irVDH4jWiGkkdbZZc3auve8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=X3KfMSP8; arc=none smtp.client-ip=185.246.84.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="X3KfMSP8" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 343D91A253D; Tue, 30 Dec 2025 16:24:33 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id EDEA56072C; Tue, 30 Dec 2025 16:24:32 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 0C8CA113B029B; Tue, 30 Dec 2025 17:24:28 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1767111871; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=PjLaYjrR1MKuGXNVMXC/3x7JElHhhnNjgoytiQMaSJ4=; b=X3KfMSP85DHhW63H9aYJGfgf7piH+p8p/oKHaqM0A3q1yoh9B4WigDduzbQlJBtk0/Rxgd 7rINi6glPvbrkkisffEiOZG/p1DfWz9D/yjmf6mqsWZ6jN2fy5E0m5xu6hBgrE+ZpGZecn y8Oz0YFHt60/2ev1XLSNVOIAQLlGaB2dSvGpfHk8naCwZrtV2KA3Ta4h5jQ8QPqtkXLfGH pxEdp2m8rfoH6lmvzsRvooC8VGnEDLl7WlvSXx39MM/On/ujHwxaNWsrWrzSlcNJ/Jvvxk hgfaThTIhPdc+hTgy2UIqnLxwlrnefR1RtuWH6Y2l8OWGNtzoxF2KnF9UGPnZw== Date: Tue, 30 Dec 2025 17:24:27 +0100 From: Thomas Petazzoni To: Fabian Pflug Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Haidong Zheng , Danwei Luo , Lei Xu Subject: Re: [PATCH v4 2/2] arm64: dts: freescale: add support for NXP i.MX93 FRDM Message-ID: <20251230172427.4f22ac7c@windsurf> In-Reply-To: <20251230171548.67289601@windsurf> References: <20251218-fpg-nxp-imx93-frdm-v4-0-cd3a9f6ac89a@pengutronix.de> <20251218-fpg-nxp-imx93-frdm-v4-2-cd3a9f6ac89a@pengutronix.de> <20251230171548.67289601@windsurf> Organization: Bootlin X-Mailer: Claws Mail 4.3.1 (GTK 3.24.51; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Last-TLS-Session-Version: TLSv1.3 Hello (again), On Tue, 30 Dec 2025 17:15:48 +0100 Thomas Petazzoni wrote: > I see the PMIC interrupt and the RTC interrupts are routed to the I2C > GPIO expander at 1-0022, so I imagine either the PMIC or the RTC are > triggering an interrupt (left enabled by U-Boot), and the kernel isn't > compiled with the driver for either the PMIC or the RTC, and therefore > there's no IRQ handler? > > (I confess I didn't investigate more than that at this point.) Upon closer inspection, I in fact get thousands over IRQ #100 per seconds right after boot, until the point where it reaches 100000 IRQ events, and the splat appears, with the IRQ being subsequently disabled. So it's not just one interrupt, but a storm of it. Thomas -- Thomas Petazzoni, co-owner and CEO, Bootlin Embedded Linux and Kernel engineering and training https://bootlin.com