linux-kernel - Re: [PATCH] nvme: Change our APST table to be no more aggressive than Intel RSTe

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Message-ID: <20170519063505.GA15980@infradead.org>
Date:   Thu, 18 May 2017 23:35:05 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     Jens Axboe <axboe@...nel.dk>, Sagi Grimberg <sagi@...mberg.me>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-nvme <linux-nvme@...ts.infradead.org>,
        Keith Busch <keith.busch@...el.com>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Mario Limonciello <mario_limonciello@...l.com>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] nvme: Change our APST table to be no more aggressive
 than Intel RSTe

On Thu, May 18, 2017 at 06:13:55PM -0700, Andy Lutomirski wrote:
> a) Leave the Dell quirk in place until someone from Dell or Samsung
> figures out what's actually going on.  Add a blanket quirk turning off
> the deepest sleep state on all Intel devices [1] at least until
> someone from Intel figures out what's going on -- Hi, Keith!  Deal
> with any other problems as they're reported.

I think we should just blacklist the 60p entirely.  It also seems to
corrupt data 100% reliable when used with XFS.