linux-kernel - [Regression] rt2800usb - Wifi performance issues and connection drops

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Date:   Sat, 4 Mar 2023 17:24:07 +0100
From:   "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Stanislaw Gruszka <stf_xl@...pl>,
        Helmut Schaa <helmut.schaa@...glemail.com>
Cc:     "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux kernel regressions list <regressions@...ts.linux.dev>,
        Thomas Mann <rauchwolke@....net>
Subject: [Regression] rt2800usb - Wifi performance issues and connection drops

Hi, this is your Linux kernel regression tracker.

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=217119 :

>  Thomas Mann 2023-03-03 15:12:03 UTC
> 
> After the update of linux to 6.2.x, i get connection drops and bandwidth problems.
> 
> 6.2.1 was completely unusable and 6.2.2 still has bandwidth problems but works a bit better
> 
> The device in use is:
> 
> 13d3:3273 IMC Networks 802.11 n/g/b Wireless LAN USB Mini-Card
> 
> Downgrading the kernel to 6.1.[14,15] fixes the problem and the wifi gets stable again and the available bandwidth increases.
> 
> demsg shows no errors
> 
> [tag] [reply] [−]
> Private
> Comment 1 The Linux kernel's regression tracker (Thorsten Leemhuis) 2023-03-04 05:45:33 UTC
> 
> Please attach dmesg [without it most people won't even know which driver is in use for your card]
> 
> [tag] [reply] [−]
> Private
> Comment 2 Thomas Mann 2023-03-04 12:36:45 UTC
> 
> drive in use is rt2800usb
> 
> [tag] [reply] [−]
> Private
> Comment 3 Thomas Mann 2023-03-04 12:38:01 UTC
> 
> Created attachment 303840 [details]
> dmesg output
> 

See the ticket for more details.

[TLDR for the rest of this mail: I'm adding this report to the list of
tracked Linux kernel regressions; the text you find below is based on a
few templates paragraphs you might have encountered already in similar
form.]

BTW, let me use this mail to also add the report to the list of tracked
regressions to ensure it's doesn't fall through the cracks:

#regzbot introduced: v6.1..v6.2
https://bugzilla.kernel.org/show_bug.cgi?id=217119
#regzbot title: net: wireless: rt2800usb: wifi performance issues and
connection drops
#regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply and tell me -- ideally
while also telling regzbot about it, as explained by the page listed in
the footer of this mail.

Developers: When fixing the issue, remember to add 'Link:' tags pointing
to the report (e.g. the buzgzilla ticket and maybe this mail as well, if
this thread sees some discussion). See page linked in footer for details.

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.