From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta1.migadu.com (out-56.mta1.migadu.com [95.215.58.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 887193368BD for ; Wed, 7 Oct 2026 06:57:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791356268; cv=none; b=fAsR2SymANxy3/7BCltEGgFrAmCvAfVN2nLM6I6AoOk9OIgTkl7MChMIO361xgBTcBQqM7ErDjLsZGjGd6jC6TLCGErhemWAo7/CIwTsIXG27nlf2Xutu/g2lXw1I35LD+J7qpRBKEdmu4rsBhqeX5wndmneqhlG5iFyWUt2xMI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791356268; c=relaxed/simple; bh=bgvAnuDBKrah+1oAtquFA8au46xffNkrUC44ySLVSKM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=oSV8Hp25mdRxS9922OYxsrB/mZWm1sj7UxtLFhDG+//MFgnBSuIlUOvmUMt8NW7YcuASn7RXtasSvHDvwwEDjX+umD6W6RotkF2WOrVWF+rEorOryiAB506Gl4r62J4q/yxwiuVSCDGp8X3gK/5g7uDgln8t21efXnOY5poYIxI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=WnTHYnfQ; arc=none smtp.client-ip=95.215.58.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="WnTHYnfQ" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=bgvAnuDBKrah+1oAtquFA8au46xffNkrUC44ySLVSKM=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1791356264; v=1; x=1791961064; b=WnTHYnfQmwIQWflbVwSkxekWLWk0e/wJoX67NX85NKMxYS0+bdrTFh8hbTNvg9Zc4f2gm9/z Gi/b0T4i7XYE1G0nIf2476sUdyCFC2u7DfaJtSD7ebsXqRlZjv+H81UdNhstLzXt/FWkK8WsqM7 f++WJZrtbNnHcEp+5KaNFBqk= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 81353408bb37fdb6; Wed, 07 Oct 2026 05:42:35 +0000 X-Mizu-Trace-ID: 81353408bb37fdb6 X-Migadu-Flow: FLOW_OUT Message-ID: <9866b263-ab09-4609-8885-62b68049bc33@linux.dev> Date: Wed, 7 Oct 2026 11:12:33 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [REGRESSION] PCI/AER: MacBookPro16,1 powers off ~20 s after boot To: Lukas Wunner Cc: "Perlow, Jason" , Bjorn Helgaas , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, regressions@lists.linux.dev, Alex Deucher References: <20261005231914.GA639967@bhelgaas> <2a7a97cc-7ad0-4e6f-845a-dd841d36079b@linux.dev> Content-Language: en-US From: Aditya Garg In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 06-10-2026 03:14 pm, Lukas Wunner wrote: > On Tue, Oct 06, 2026 at 02:01:52PM +0530, Aditya Garg wrote: >> On 06-10-2026 08:26 am, Lukas Wunner wrote: >>> On Mon, Oct 05, 2026 at 08:17:12PM -0400, Perlow, Jason wrote: >>>> masked only on 04:00.2 (Apple T2 Secure Enclave, 106b:1802): >>>> stays up (120 s) >>> [...] >>>> So here the trigger is unmasking Advisory Non-Fatal Errors on that >>>> one function. >>> >>> That's quite unexpected. Maybe there's a bug in the PCIe IP which >>> Apple used for the T2 Secure Enclave device (which I believe is a >>> fully-fledged arm64 CPU with a PCIe port in Endpoint mode). > [...] >>> macOS likely never unmasks the bit and so they never saw this during >>> validation testing. Is the T2 device visible on Windows? If it is, >>> it seems Windows doesn't support and unmask Advisory Non-Fatal Errors >>> either. >> >> T2 device is visible on Windows as well as "System Device" > > It looks like lspci is also available as a Windows binary: > > https://github.com/pciutils/pciutils/releases/tag/v3.15.0 > https://eternallybored.org/misc/pciutils/ > > Could you double-check whether it unmasks Advisory Non-Fatal Errors > in the Uncorrectable Error Mask Register, on the T2 or any other device? The Windows build seems to be too old> > Thanks! > > Lukas