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 D14CF2DEA6E for ; Mon, 13 Oct 2025 21:18:16 +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=1760390296; cv=none; b=mjt9Xs/cIiqzGXz3llxE/0pN1eXHN64bRoaSWeP3seXsl9mEh1hnXWcLzdmsXf6IUK3SS76Z/Nuca2z5xikoAGX5T+PEHtZJIgtgpdZYQQUhjDwE00jLU621YnvXUvQgkm0pwuHj82Ph3SKyRV22mGfmlvI1qCu2/YaH4zu/pTk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760390296; c=relaxed/simple; bh=3ONjSP63/u0x8AdOoa0cSrfqMGyNCxclDohik3JfmjE=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=W83wLIdwVv+K3OO5nmhb5ZZufYzPGK7ee7QIfZg/mTeRysOj/hqEouJvMDvblWpso0rtswSA3Dusal/Sp9QlPg2rr7vB2Dhjm1KBeZNUp/m3u+tAZNDTW/8+o2+2Y4M8vqZnaVdZ/5BAF3m2FqlxpXt88a1bOukt87BdIXlCWFg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Y02ovThe; 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="Y02ovThe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40ADFC4CEE7; Mon, 13 Oct 2025 21:18:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760390296; bh=3ONjSP63/u0x8AdOoa0cSrfqMGyNCxclDohik3JfmjE=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=Y02ovThedtt8POGTv2TOHRZT0T4rf+IZPt0+09OdEaHZgPCRS5DtjQSLscrhCag8L GC++6xsC18zKB1n25o3rwblNMA1V1P7/e4JyEFf67K7gbz/ziDA46AGrSOqMjMNTct jueZNSB2nzKNDbbUoc+a1r/rJ0FZkPOj21COzMpuA0tzIoYnOM/p1CV2+pUE06J+4+ kn/is6y+YG3a23kXfu9EIwf8oYkHsq9T8Efig89l88VW9IdMqf65eGDi3CEWw4xYL/ 7Lnvvu/7o3HXyCYUXyeIcAZF8CEOhXc15PUbAd2c2n4z1iku+RQEnlM/2cHpz3HGTL dQeRp+hxnrKgQ== Date: Mon, 13 Oct 2025 16:18:15 -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 Subject: Re: commit 54f45a30c0 ("PCI/MSI: Add startup/shutdown for per device domains") causing boot hangs on my laptop Message-ID: <20251013211815.GA864904@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: [+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