From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from plato.eworx.gr (plato.eworx.gr [136.243.87.140]) (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 DF0AE433054 for ; Fri, 21 Aug 2026 08:26:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.243.87.140 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787300797; cv=none; b=dgJTzEd7BhpUeD5Uee9LSytBSimGeUwNf5okQ0AblSm5XYaW7UhBWXmDxQaxEIjfC3uJo57Xf6q3ae07dAJGJa1vrdLSzG7zptyprGWEjEzhpgRwNmUndGwwwq/bs8znrW3cCMeG76OZm1RRlSRS3fnsl261rDesbvux/0cGQQo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787300797; c=relaxed/simple; bh=VV7BwjjIDJ5bz3UdIc1Pj0vFxawXQvjDke/DpCVCus0=; h=Message-ID:Date:MIME-Version:To:Cc:References:Subject:From: In-Reply-To:Content-Type; b=e/CrzKIJXPClKOsyXYzfhutZABnd8MG+ny7NilGKfOOPI/rZilwZ0nwdZuRSJRsZKwznM1CRVGZtO2uJlPTBSJW6ZyMB16VZ1AZg0bvnJg7vOdPdt10aTtm/ipj5ZtSgI4YKkIn3+335/cyFAXWzpn4B3VYZrgkhmOCjnE3pIKw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=eworx.gr; spf=pass smtp.mailfrom=eworx.gr; dkim=pass (1024-bit key) header.d=eworx.gr header.i=@eworx.gr header.b=Iwcsg821; arc=none smtp.client-ip=136.243.87.140 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=eworx.gr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=eworx.gr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=eworx.gr header.i=@eworx.gr header.b="Iwcsg821" Received: from localhost (localhost [127.0.0.1]) by plato.eworx.gr (Postfix) with ESMTP id 65592121193; Fri, 21 Aug 2026 11:18:34 +0300 (EEST) X-Virus-Scanned: amavisd-new at eworx.gr Received: from plato.eworx.gr ([127.0.0.1]) by localhost (plato.eworx.gr [127.0.0.1]) (amavisd-new, port 10024) with LMTP id wzdU7KUFMelW; Fri, 21 Aug 2026 11:18:33 +0300 (EEST) Received: from [10.245.147.15] (unknown [62.74.22.177]) by plato.eworx.gr (Postfix) with ESMTPSA id BD7E0120667; Fri, 21 Aug 2026 11:18:32 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=eworx.gr; s=mail; t=1787300313; bh=VV7BwjjIDJ5bz3UdIc1Pj0vFxawXQvjDke/DpCVCus0=; h=Date:To:Cc:References:Subject:From:In-Reply-To; b=Iwcsg821EgFglhD24idDNwP0xjEGRyzVg/hhjT3uD6hLLl0ejO9sBymR/ON+O1BHX 8tSD1yXHE+qZjPtnSQO8m3UbiCJtanYq5kAVQ9Vh7bsJyaDnY6SJwrFQbYuKVHcwww eBmamTLq+DduY58kbRVkbDa6Bt9HI297fFJn9A7I= Message-ID: Date: Fri, 21 Aug 2026 11:18:31 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: ttencate@gmail.com Cc: axboe@fb.com, hch@lst.de, kbusch@kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, sagi@grimberg.me References: Subject: Re: "controller is down; will reset" on SK Hynix NVMe drive in Lenovo IdeaPad Pro 5 Content-Language: en-US From: Maria Ioannidou In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit I can confirm this issue on identical hardware, in case a second report helps move the quirk forward. Hardware:   Laptop: Lenovo IdeaPad Pro 5 16APH8 (MTM 83AR001MGM)   BIOS:   MDCN33WW (2024-01-24)   Drive:  SKHynix_HFS001TEJ4X112N   PCI ID: 1c5c:1d59 Kernel: 7.0.0-30-generic (Ubuntu 26.04) Symptoms match the original report. After some idle time, writes begin failing with I/O errors, ext4 remounts read-only, and the system becomes unusable until reboot:   systemd-journald: Failed to write entry to   /var/log/journal/.../system.journal ... Input/output error The failure is not confined to any userspace component. It reproduces with no graphical session running (multi-user.target), with the NVIDIA driver stack fully removed, and on a completely fresh install of Ubuntu 26.04 onto a wiped disk - in that case within roughly four minutes of first boot. Diagnostics that made this misleading:   - SMART self-assessment PASSED, Critical Warning 0x00,     Available Spare 100%, Percentage Used 1%, Media and Data     Integrity Errors 0   - Sequential write throughput is normal (2.7 GB/s) when working   - fsck from external boot media always completes clean, since a     live USB barely touches the internal drive Since a clean reinstall reproduces the fault, this initially looked like failing hardware, and I was close to filing a warranty claim before testing the APST hypothesis. Booting with nvme_core.default_ps_max_latency_us=0 resolves it completely. Stable for over 24 hours now, including several reboots, suspend/resume cycles and repeated 4 GiB direct writes, with no errors in dmesg. I have not needed pcie_aspm=off or pcie_port_pm=off; disabling APST alone has been sufficient here. Happy to test a patch or provide further logs if useful. -- Maria Ioannidou Eworx Technical Team mi@eworx.gr