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 BCC0146447; Mon, 11 Aug 2025 14:38:57 +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=1754923137; cv=none; b=Z+xY+VncfSzc+RVvnZDUm+F+aGuVfkqaD3rWF7HgyVQ6ChXmH1IW+qG2678ufM0+fI2KEmArZ+wFLwlqA58I9i/se7EjWfxWIBhCt1PpnfLoauo9fXmtNJ6cIbVjKgmPaP+4bm5lu456pnSnII/c4jteE1HOtkAEqt9dCOmnBgQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754923137; c=relaxed/simple; bh=RBPx0dxNh+rNTcptWvcSPGABtt0/X8BmM7RC5h2kOkE=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=MXCxQzfX2rjwVK8CFVmVlBpvTO720z6lzEL+ng00EbWbmZGvKFHgTOwMdi+iH7V/lyc/OHR21OsaeuzuwCLlw4Elhetxbqu1KUQ7+N+q0rkwbavJvSiu0Q48mJoghG05zfGSedHhO9ptwCG3KoSW9aMOssfR2hGmbclezrXyTsQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rAXyy64c; 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="rAXyy64c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76EB2C4CEED; Mon, 11 Aug 2025 14:38:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754923137; bh=RBPx0dxNh+rNTcptWvcSPGABtt0/X8BmM7RC5h2kOkE=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=rAXyy64cl/0Vqx16bd11on8kaBxmNBqqvHQkGrVD/cssPvyfXyzzL6CvbgzMVz9Ou xt12AXdopJlFCKQWHKIRFTYBDzfG+t+CL3buVGedwVSOGmFH+GoFbH/3fycPdSLhZ8 da2YRJK6LCMmFDeKxQfBIWb4movWv+D0ViObnRBKHp5A8P1rXwnHiICa8mpTpV+JCk uiQGg8m7Wfa3b6osa6Isry3Nvp0k8tyAJ/3P3XrjfCR8SHyr26YrVsrdfkuBen3Ak/ N1kajTLPuqmPXn0PW1pyoszYPVbYtZN93zUz5EHOW9Yw20xE3weQZNRMecNvSckhzS 32AGinS4/wk7A== Date: Mon, 11 Aug 2025 09:38:56 -0500 From: Bjorn Helgaas To: Kenneth Crudup Cc: namcao@linutronix.de, mani@kernel.org, Bjorn Helgaas , linux-pci@vger.kernel.org, regressions@lists.linux.dev Subject: Re: Commit d7d8ab87e3e ("PCI: vmd: Switch to msi_create_parent_irq_domain()") causes early-stage reboots on my Dell XPS-9320 Message-ID: <20250811143856.GA132204@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: <20250807160301.GA50800@bhelgaas> On Thu, Aug 07, 2025 at 11:03:03AM -0500, Bjorn Helgaas wrote: > On Wed, Aug 06, 2025 at 04:07:30PM -0700, Kenneth Crudup wrote: > > > > I'm running Linus' master (as of today, cca7a0aae8958c9b1). > > > > If I revert the named commit, I can boot OK. Unfortunately there's no real > > output before the machine reboots, to help identify the problem. > > > > I have a(n enabled) VMD in my Alderlake machine: > > > > [ 0.141952] [ T1] smpboot: CPU0: 12th Gen Intel(R) Core(TM) i7-1280P > > (family: 0x6, model: 0x9a, stepping: 0x3) > > #regzbot introduced: d7d8ab87e3e7 ("PCI: vmd: Switch to msi_create_parent_irq_domain()") #regzbot fix: d5c647b08ee0 ("PCI: vmd: Fix wrong kfree() in vmd_msi_free()")