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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 704F6C44512 for ; Thu, 16 Jul 2026 16:41:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Owner; bh=88UMF+eU7HiAKdmWyHdi8ruaFAzo0R90LbSMbDbrqWc=; b=GzI8h1tlCK13tI YnDx4DPcnoBIYTV/tCy31BzDuoP5pgP0BwMFvSakgV2B0t251IqWCSNLqyTvRnKvPefd+Gzm7gxjU +LXd+zEDeEy14407TqUfbNMFG/JQaSTzk1RGJgHyZQZ0RM9qxM9kSZtuRzZrrKPFDayqbyZIecIuD BfTIWLW7RGVWGODKAF3FKNap1GeFcbI0j/CxEW9yKn2/K8M3xffojZmJvWPFkRD91+KIzxSAfVCZo 7qmRZKyvTnDZZN5UF0mnbWiO+uHqsYBXHYl/+thyKC70GJ4tuwlRJY0AUc0H4l1YMrVSO9yG13Uy6 6zmMRmJKcDw5yoTdFaDg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wkP8w-00000000C39-28uO; Thu, 16 Jul 2026 16:41:02 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wkP8u-00000000C2z-300k for linux-arm-kernel@lists.infradead.org; Thu, 16 Jul 2026 16:41:00 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 24DC840967; Thu, 16 Jul 2026 16:41:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D8EB71F000E9; Thu, 16 Jul 2026 16:40:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784220060; bh=88UMF+eU7HiAKdmWyHdi8ruaFAzo0R90LbSMbDbrqWc=; h=Date:From:To:Cc:Subject:In-Reply-To; b=MT+Yp0fXYwTGnaSkIHjy79XOarEsKn3ydw7f9xPZP6R/37qfbxtN4MeTXYox9p9mm K81jwZd8nnHX6DbVK8xWFQ06ybwVlgK7Wd01X+hLha4h6NV8o0Hu1NTwINky05Bvlx Em7qhBhd4C6rfQqFHitDWmbAUonbKPS5161cyz1AENMb/2YDUL/VDxFd18Y4C1YhK7 TAqft2VkXHf0nivVmzHnA0MqF50dHqGpudxL2b83oEPFdHMPqdkMzvj+mP7Ml4h30n sZMdqNnYIl/3f4PR1417cMt5bxFKYUTRuo1kYyj1B6YlEPoi/lpUzElPRW4w9G8tPw zCTwHvxfQaGxw== Date: Thu, 16 Jul 2026 11:40:58 -0500 From: Bjorn Helgaas To: "Hongxing Zhu (OSS)" Cc: Leonardo Costa , "robh@kernel.org" , "krzk+dt@kernel.org" , "conor+dt@kernel.org" , Frank Li , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "leonardo.costa@toradex.com" , "devicetree@vger.kernel.org" , "imx@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "regressions@lists.linux.dev" , Sherry Sun , Manivannan Sadhasivam , Hongxing Zhu , "linux-pci@vger.kernel.org" Subject: Re: [REGRESSION] mainline/master: Apalis iMX6 no longer boots Message-ID: <20260716164058.GA16414@bhelgaas> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jul 16, 2026 at 02:15:42AM +0000, Hongxing Zhu (OSS) wrote: > > On Mon, Jun 29, 2026 at 11:34:32AM -0300, Leonardo Costa wrote: > > > We are seeing a regression on Apalis iMX6 where the kernel > > > doesn't boot in the newest v7.2-rc1 (it was working before, in > > > v7.1). The device tree being used is the imx6q-apalis-eval.dtb. > > > The kernel configuration > > > used is the one shown below: > ... > > Can somebody confirm that reverting 610fa91d9863 fixes this > > regression, or at least that 610fa91d9863^ works and 610fa91d9863 > > fails? > > Sorry for this severe regression. I have posted a fix that has been > tested on my i.MX6Q SabreSD board: > > https://lore.kernel.org/imx/20260708035928.580236-2-hongxing.zhu@oss.nxp.com/ My question was whether somebody had actually bisected to 610fa91d9863 ("PCI: imx6: Assert PERST# before enabling regulators"). I don't see anything specific on the mailing list, so I don't know how 610fa91d9863 got blamed for the regression. https://linux-regtracking.leemhuis.info/regzbot/mainline/ lists this as a regression caused by 610fa91d9863, which means we need (1) the details to prove that 610fa91d9863 actually caused it and (2) a tested revert or fix.