linux-kernel - Re: Commit 4257f7e0 ("PCI/ASPM: Save/restore L1SS Capability for suspend/resume") causing hibernate resume failures

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Message-ID: <73f7f072-583c-cf54-a034-55e2f1990c52@nvidia.com>
Date:   Wed, 30 Dec 2020 12:25:01 +0530
From:   Vidya Sagar <vidyas@...dia.com>
To:     "Kenneth R. Crudup" <kenny@...ix.com>,
        Bjorn Helgaas <helgaas@...nel.org>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: Commit 4257f7e0 ("PCI/ASPM: Save/restore L1SS Capability for
 suspend/resume") causing hibernate resume failures

Ideally Bjorn's patch should have worked.
Could you please collect 'sudo lspci -vv' (please don't forget to give 
sudo) with Bjorn's patch before and after hibernate?
Also, is it right to say that with policy set to "performance" there is 
no issue during hibernate/resume?

- Vidya Sagar

On 12/28/2020 12:00 PM, Kenneth R. Crudup wrote:
> External email: Use caution opening links or attachments
> 
> 
> On Sun, 27 Dec 2020, Kenneth R. Crudup wrote:
> 
>> I'll try your patch after the revert and see if anything changes.
> 
> I just realized today's patch makes no sense if it's reverted, so nevermind.
> 
>          -Kenny
> 
> --
> Kenneth R. Crudup  Sr. SW Engineer, Scott County Consulting, Orange County CA
>