linux-kernel - Re: [regression] Bug 217069 - Wake on Lan is broken on r8169 since 6.2

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Date:   Sun, 19 Mar 2023 08:20:59 +0100
From:   "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux kernel regressions list <regressions@...ts.linux.dev>,
        Jianmin Lv <lvjianmin@...ngson.cn>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Bob Moore <robert.moore@...el.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        acpica-devel@...ts.linuxfoundation.org,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [regression] Bug 217069 - Wake on Lan is broken on r8169 since
 6.2

Hi, Thorsten here, the Linux kernel's regression tracker.

On 22.02.23 08:57, Thorsten Leemhuis wrote:
> 
> I noticed a regression report in bugzilla.kernel.org. As many (most?)
> kernel developer don't keep an eye on it, I decided to forward it by
> mail. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=217069 :

An issue that looked like a network bug was now bisected and it turns
out it's cause by 5c62d5aab875 ("ACPICA: Events: Support fixed PCIe wake
event") which Huacai Chen provided. Could you take a look at the ticket
linked above?

FWIW, the whole story started like this:

>> Ivan Ivanich 2023-02-22 00:51:52 UTC
>>
>> After upgrade to 6.2 having issues with wake on lan on 2 systems: -
>> first is an old lenovo laptop from 2012(Ivy Bridge) with realtek
>> network adapter - second is a PC(Haswell refresh) with PCIE realtek
>> network adapter
>>
>> Both uses r8169 driver for network.
>>
>> On laptop it's not possible to wake on lan after poweroff On PC it's
>> not possible to wake on lan up after hibernate but works after
>> poweroff
>>
>> In both cases downgrade to 6.1.x kernel fixes the issue.

Meanwhile a few others that ran into the same problem with NICs from
different vendors joined the ticket

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.