netdev - Re: [bugzilla-daemon@...nel.org: [Bug 218784] New: doc for bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670]

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Message-ID: <e300104e-c20c-4530-af41-bec91edc3440@gmail.com>
Date: Thu, 12 Jun 2025 23:48:48 +0200
From: Heiner Kallweit <hkallweit1@...il.com>
To: Bjorn Helgaas <helgaas@...nel.org>, linux-pci@...r.kernel.org
Cc: nic_swsd@...ltek.com, netdev@...r.kernel.org
Subject: Re: [bugzilla-daemon@...nel.org: [Bug 218784] New: doc for bug
 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670]

On 12.06.2025 23:19, Bjorn Helgaas wrote:
> [submitter in bcc]
> 
> This is an old bug reported on Ubuntu as "[r8169] Kernel loop PCIe Bus
> Error on RTL810xE"
> (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670).
> 
> Seems like we're seeing about 10 AER Correctable Error log messages
> like this per second:
> 
>   pcieport 0000:00:1d.0: AER: Multiple Correctable error message received from 0000:01:00.0
>   r8169 0000:01:00.0: PCIe Bus Error: severity=Correctable, type=Physical Layer, (Receiver ID)
>   r8169 0000:01:00.0:   device [10ec:8136] error status/mask=00000001/00006000
>   r8169 0000:01:00.0:    [ 0] RxErr                  (First)
> 
> This is on a Dell Inc. Inspiron 3793/0C1PF2, BIOS 1.30.0 03/07/2024
> with Realtek RTL810xE NIC.
> 
> Submitter tested a patch
> (https://bugzilla.kernel.org/attachment.cgi?id=306243&action=diff)
> that just masked PCI_ERR_COR_RCVR errors, which masked the problem,
> but that patch isn't upstream and seems like a hack.
> 
> v6.16 will include ratelimiting for correctable errors, which will
> help but it's still not a real solution.
> 
> I'm not sure what if anything to do here, I'm just forwarding to the
> mailing list so it's not completely forgotten and to make it visible
> to search engines.
> 
> ----- Forwarded message from bugzilla-daemon@...nel.org -----
> 
> Date: Sat, 27 Apr 2024 09:04:55 +0000
> From: bugzilla-daemon@...nel.org
> To: bjorn@...gaas.com
> Subject: [Bug 218784] New: doc for bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670
> Message-ID: <bug-218784-41252@...ps.bugzilla.kernel.org/>
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=218784
> 
>             Bug ID: 218784
>            Summary: doc for bug
>                     https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670
>         Regression: No
> 
> Created attachment 306225
>   --> https://bugzilla.kernel.org/attachment.cgi?id=306225&action=edit
> doc for bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670
> 
> As requested by bjorn-helgaas for bug
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015670
> attaching zip file with:
> dmesg.txt - complete dmesg log (includes some Correctable Errors)
> lspci-command - terminal message from lspci
> lspci-output - output of "sudo lspci -vv"
> grub-txt - grub default modified with "pcie_aspm=off" ... makes a difference
> dmesg-2.txt - complete dmesg log with "pcie_aspm=off"
> lspci-2-output - with "pcie_aspm=off"
> inxi.txt
> 

The Ubuntu bug report includes a full dmesg
https://launchpadlibrarian.net/660465011/CurrentDmesg.txt
The fist AER's are logged long before r8169 driver is loaded. Looks to me
like some board component incompatibility, or BIOS issue, or maybe even a
physical problem. But very likely not a network driver issue.