Hello all!
Christian provided me with a linux-mainline-6.14rc4-1-x86_64 package to test with today and I am still experiencing the issue, so I am assuming that revert did not happen yet.
To give some additional context for the performance regression, I have an AT&T 500/500 fiber line. As of this morning on kernel 6.13.1, I get 550 down / 470 up over Wifi 6 on speedtest.net. Testing immediately afterwards with Christian's mainline package, I got a result of 170 down / 75 up, which is similar to the results that I got for all the other bisection kernels Christian gave me to test.
Thanks!
Ben
On Friday, February 28th, 2025 at 9:14 AM, Peter Seiderer <ps.report@xxxxxxx> wrote:
>
>
> Hello Christian,
>
> On Fri, 28 Feb 2025 11:19:52 +0100, Christian Heusel christian@xxxxxxxxx wrote:
>
> > Hello everyone,
> >
> > on the Arch Linux Bugtracker1 Benjamin (also added in CC) reported
> > that his MT7925 wifi card has halved it's throughput when updating from
> > the v6.13.1 to the v6.13.2 stable kernel. The problem is still present
> > in the 6.13.5 stable kernel.
> >
> > We have bisected this issue together and found the backporting of the
> > following commit responsible for this issue:
> >
> > 4cf9f08632c0 ("wifi: mt76: mt7925: Update mt7925_mcu_uni_[tx,rx]_ba for MLO")
>
>
> Seems there is already a suggested revert of the mentioned commit, see
>
> [PATCH v4 1/6] Revert "wifi: mt76: mt7925: Update mt7925_mcu_uni_[tx,rx]_ba for MLO"
> https://lore.kernel.org/linux-wireless/20250226025647.102904-1-sean.wang@xxxxxxxxxx/#r
>
> Regards,
> Peter
>
> > We unfortunately didn't have a chance to test the mainline releases as
> > the reporter uses the (out of tree) nvidia modules that were not
> > compatible with mainline release at the time of testing. We will soon
> > test against Mainline aswell.
> >
> > I have attached dmesg outputs of a good and a bad boot aswell as his
> > other hardware specs and will be available to debug this further.
> >
> > Cheers,
> > Christian
