From mboxrd@z Thu Jan  1 00:00:00 1970
From: kbusch@kernel.org (Keith Busch)
Date: Mon, 13 May 2019 12:16:18 -0600
Subject: [PATCH] nvme/pci: Use host managed power state for suspend
In-Reply-To: <9AE4A3E7-CDB8-4730-8B4E-43C93FC0C47F@canonical.com>
References: <20190510212937.11661-1-keith.busch@intel.com>
 <0080aaff18e5445dabca509d4113eca8@AUSX13MPC105.AMER.DELL.COM>
 <955722d8fc16425dbba0698c4806f8fd@AUSX13MPC105.AMER.DELL.COM>
 <20190513143754.GE15318@localhost.localdomain>
 <7ab8274ef1ce46fcae54a50abc76ae4a@AUSX13MPC105.AMER.DELL.COM>
 <20190513145708.GA25897@lst.de>
 <20190513151652.GB15437@localhost.localdomain>
 <9AE4A3E7-CDB8-4730-8B4E-43C93FC0C47F@canonical.com>
Message-ID: <20190513181618.GD15437@localhost.localdomain>

On Tue, May 14, 2019@01:16:22AM +0800, Kai-Heng Feng wrote:
> Disabling HMB prior suspend makes my original patch work without memory
> barrier.
> 
> However, using the same trick on this patch still freezes the system during
> S2I.

Could you post your code, please?