From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C3BF71A9F9B; Mon, 13 Oct 2025 21:19:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760390380; cv=none; b=FxgEKD3dlTItYWRBPh07qXoZCneLEZTnV+baQUnXdX2Nyc8cBhG9STsz+Rgs2EZt9coJRIZJ227GP+ORixuMtDdQRYDY7i0CeoSM6beRZpb8U6Bc8p3wE2OqwFbIXYR0e+uyt1jxeK7hcam7FBh2imoaccjOqS2rMgA9hIgVyog= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760390380; c=relaxed/simple; bh=EHxxQD8og20F9+fhPoBt6CNX+siyDlnUuz0TQTdudXg=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=Nzst2+5CNFSXkT3Z1pRoyF4mpheTmi718xwssBm38xJ1MuLzvpDT2O30DpUBrjSwv2NmKpyju64j+85bYdG267SCTNRPguiPCe0Ym0w40O1VMxRQaCevRHSUA/oESEaxtTkscji+TEaOvR40IJ2UCqoZZSIyZK0izYJJB1j8owg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fACKrjqG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fACKrjqG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 41E22C4CEE7; Mon, 13 Oct 2025 21:19:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760390380; bh=EHxxQD8og20F9+fhPoBt6CNX+siyDlnUuz0TQTdudXg=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=fACKrjqGKL2ovU/hV7m1N7RHvCE9PFpOcx20JFMgHDxO251tiiQCgxM0mBo2F2ANa 6vqXUl3tUE5k0y3NM6ihlpFAIcuol7PVROnpAYkOgp7M0ndd7WTA9iOmrqaELmRj45 vFxHQQGqXtZYKYcEO7Qkzvkw29Ve8RDUnbjcN6MRyuMzjyk6GyViz/8tlbx5kTvSvB G7qZDCuizhMyJjF3F8WqmPOtMlI0xV1SRHidU95Y31J4LkbTjUVUMIorCbuGRshQ2a QWnCwIYzAXee2TLSbwgFjmwCwjy2DsMIqVseqjI20Xi9z+lQWL5ZBDvjVhIhUhyDM9 xRFxvwSZPBUKw== Date: Mon, 13 Oct 2025 16:19:39 -0500 From: Bjorn Helgaas To: Kenneth Crudup Cc: inochiama@gmail.com, tglx@linutronix.de, bhelgaas@google.com, unicorn_wang@outlook.com, linux-pci@vger.kernel.org, Genes Lists , Jens Axboe , Todd Brandt , regressions@lists.linux.dev Subject: Re: commit 54f45a30c0 ("PCI/MSI: Add startup/shutdown for per device domains") causing boot hangs on my laptop Message-ID: <20251013211939.GA865451@bhelgaas> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251013211815.GA864904@bhelgaas> [+cc regressions like I meant to do the first time] On Mon, Oct 13, 2025 at 04:18:16PM -0500, Bjorn Helgaas wrote: > [+cc Gene, Jens, Todd] > > On Thu, Oct 02, 2025 at 10:04:17AM -0700, Kenneth Crudup wrote: > > > > I'm running Linus' master (as of 7f7072574). > > > > I bisected it to the above named commit (but had to back out ba9d484ed3 > > (""PCI/MSI: Remove the conditional parent [un]mask logic") and then > > 727e914bbfbbd ("PCI/MSI: Check MSI_FLAG_PCI_MSI_MASK_PARENT in > > cond_[startup|shutdown]_parent()") first for a clean revert.) > > > > I have a Dell XPS-9320 laptop, and booting would hang before it switched to > > the xe video driver from the EFI FB driver (not sure if this is a symptom or > > partial cause) and I'd see a message akin to "not being able to set up DP > > tunnels, destroying" as the last thing printed before it hangs. (If it's > > important to see those messages I believe I can force a pstore crash to get > > them where they can be saved off, let me know). #regzbot introduced: 54f45a30c0 ("PCI/MSI: Add startup/shutdown for per device domains") #regzbot link: https://lore.kernel.org/all/3152ca947e89ee37264b90c422e77bb0e3d575b9.camel@sapience.com/ #regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=220658