linux-kernel - Re: R8169: Network lockups in 4.18.{8,9,10} (and 4.19 dev)

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Message-ID: <bed5c327-6a2a-99da-8b86-16f897b32548@maciej.szmigiero.name>
Date:   Tue, 9 Oct 2018 14:32:27 +0200
From:   "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
To:     Chris Clayton <chris2553@...glemail.com>
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Azat Khuzhin <a3at.mail@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: R8169: Network lockups in 4.18.{8,9,10} (and 4.19 dev)

On 07.10.2018 21:36, Chris Clayton wrote:
> Hi again,
> 
> I didn't think there was anything in 4.19-rc7 to fix this regression, but tried it anyway. I can confirm that the
> regression is still present and my network still fails when, after a resume from suspend (to ram or disk), I open my
> browser or my mail client. In both those cases the failure is almost immediate - e.g. my home page doesn't get displayed
> in the browser. Pinging one of my ISPs name servers doesn't fail quite so quickly but the reported time increases from
> 14-15ms to more than 1000ms.

You can try comparing chip registers (ethtool -d eth0) in the working
state (before a suspend) and in the broken state (after a resume).
Maybe there will be some obvious in the difference.

The same goes for the PCI configuration (lspci -d :8168 -vv).

> Chris

Maciej