linux-kernel - RE: [RFC PATCH] wifi: rtlwifi: disable ASPM for RTL8723BE with subsystem ID 11ad:1723

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4a7284bd703743959e709b9465dabf1d@realtek.com>
Date: Tue, 22 Apr 2025 00:27:13 +0000
From: Ping-Ke Shih <pkshih@...ltek.com>
To: Mingcong Bai <jeffbai@...c.io>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
CC: Kexy Biscuit <kexybiscuit@...c.io>,
        Liangliang Zou
	<rawdiamondmc@...look.com>,
        "John W. Linville" <linville@...driver.com>,
        Larry Finger <Larry.Finger@...inger.net>,
        "linux-wireless@...r.kernel.org"
	<linux-wireless@...r.kernel.org>
Subject: RE: [RFC PATCH] wifi: rtlwifi: disable ASPM for RTL8723BE with subsystem ID 11ad:1723

Mingcong Bai <jeffbai@...c.io> wrote:

> RTL8723BE found on some ASUSTek laptops, such as F441U and X555UQ with
> subsystem ID 11ad:1723 are known to output large amounts of PCIe AER
> errors during and after boot up, causing heavy lags and at times lock-ups:
> 
>   pcieport 0000:00:1c.5: AER: Correctable error message received from 0000:00:1c.5
>   pcieport 0000:00:1c.5: PCIe Bus Error: severity=Correctable, type=Physical Layer, (Receiver ID)
>   pcieport 0000:00:1c.5:   device [8086:9d15] error status/mask=00000001/00002000
>   pcieport 0000:00:1c.5:    [ 0] RxErr
> 
> Disable ASPM on this combo as a quirk.
> 
> This patch is a revision of a previous patch (linked below) which
> attempted to disable ASPM for RTL8723BE on all Intel Skylake and Kaby Lake
> PCIe bridges. I take a more conservative approach as all known reports
> point to ASUSTek laptops of these two generations with this particular
> wireless card.
> 
> Please note, however, before the rtl8723be finishes probing, the AER
> errors remained. After the module finishes probing, all AER errors would
> indeed be eliminated, along with heavy lags, poor network throughput,
> and/or occasional lock-ups.

Let me clarify here means. Do you mean all work well after applying this
patch? Or still lag, poor throughput or lock-ups?

If all symptoms disappear, it would be worth to take this (quirk) patch.