linux-kernel - Re: [PATCH 1/2] pci: prevent sk hynix nvme from entering D3

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20181107081915.GA24841@lst.de>
Date:   Wed, 7 Nov 2018 09:19:15 +0100
From:   Christoph Hellwig <hch@....de>
To:     AceLan Kao <acelan.kao@...onical.com>
Cc:     keith.busch@...el.com, axboe@...com, hch@....de, sagi@...mberg.me,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-nvme@...ts.infradead.org,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        linux-pci@...r.kernel.org, victor.chang@...com, james.chen@...com,
        Chih-Hsyuan Ho <chih.ho@...onical.com>
Subject: Re: [PATCH 1/2] pci: prevent sk hynix nvme from entering D3

On Tue, Nov 06, 2018 at 06:11:31PM +0800, AceLan Kao wrote:
> Agree, this is not a good fix for Sk hynix nvme, so Dell is still pushing
> Sk hynix to fix it from firmware.
> But before the firmware is ready, this is still a issue that need to be fixed in
> kernel side, and the new firmware may not be applied on the old nvme
> modules.
> This list won't keep growing, and we'll keep an eye on the new firmware and
> co-work with engineers from Sky hynix to make sure this issue won't happen
> again.

We generally quirk for grave issues that make devices unusable.

To me working around a D3 mode that consumers more power than D0
does not quite fit that bill.