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 69F33C44515 for ; Thu, 16 Jul 2026 17:29:07 +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=DfTFlvTuJ9NehD+xuHhlkvJ5W5X3RAJvY9aSf5a6Rik=; b=M6yUvxId4ueanu fHrbjb2Gm8vnQLdn4wFfxRB9e9j/xrQVSMXq0a178FzncHJHcvP7tu/Nwi2wq4tWndKbV+DWvcXeS I962TOwyamLkjNsu1osx/8pMuRj0aosLqAl0QH2RWXy/jZWnggpNT6KoNFJXDM4t/qde3p5WbbuYp xh0ku6p62Dx5wlW4OGkTcotrhYXsRZy8YdHnNPN0upAAdS8N3cowfvRi0BokODf1z0COBVZeDtN2n Ks82zQJ1NxXXGNjcazsUet9B5x7dgEE+e5I4AeB7A3CX3XfpXjYRCSWRa2sLlS7UjbVHzoEoEHixX +kAjhEuiHKALloUwGxqg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wkPtN-00000000HHT-17C4; Thu, 16 Jul 2026 17:29:01 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wkPtM-00000000HHM-08BW for linux-arm-kernel@lists.infradead.org; Thu, 16 Jul 2026 17:29:00 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C582942390; Thu, 16 Jul 2026 17:28:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85F411F000E9; Thu, 16 Jul 2026 17:28:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784222939; bh=DfTFlvTuJ9NehD+xuHhlkvJ5W5X3RAJvY9aSf5a6Rik=; h=Date:From:To:Cc:Subject:In-Reply-To; b=aEitLXbMPF+ZDmNzgzoeO2ISIaNS2tPrWwnLNqK8ednlZh1BFUnWStIW8u4B0nKBj 5DudZuSLRPdkENxkGz99NrkGQp/tgvpXWlOqP4HT2p0dHQr9xABISKJdOrfKWjgPN3 lh2/GE38DWMY7oVEtIknNPklQTVqmZf2DFvoqjwY2yJbqtKPNJEz6oWV8KWY8Z/LDP 5d0vO7bLRd7pGsSlzxHtcig3H+Bk5PxNnfYtudQR1J1Z4pj3LQ2qv03vf14m6d95lJ rC53fTeCKYe5utGbr6GKS76/cdxmGjUKSIU814FPBcsVINFDSYVaZz2KPyBArCglEh +dAxPGR80lyvg== Date: Thu, 16 Jul 2026 12:28:58 -0500 From: Bjorn Helgaas To: Thorsten Leemhuis Cc: "Hongxing Zhu (OSS)" , 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: <20260716172858.GA111215@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 07:16:31PM +0200, Thorsten Leemhuis wrote: > On 7/16/26 18:40, Bjorn Helgaas wrote: > > 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. > > That was me and might have been a stupid idea. I normally wouldn't have > added this, but a earlier message from Hongxing Zhu sounded a pretty > convincingly like something along the lines of "this is the problem I > already have a fix for there" -- and then I took the commit-id from there. Ah, ok, that explains it, thanks! Hopefully we can get some clear connection in the patch that eventually gets merged.