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Bug#1068249: linux-image-6.1.0-18-amd64: ax201 iwlwifi driver creates millions of 'Unhandled alg: 0x33f0707' messages



Please always reply to the bug report (I'll see it then too)!

On woensdag 3 april 2024 22:01:20 CEST you wrote:
> Thanks, I am working on that, but it's not trivial
> 
> (1) About firmware
> 
> These are provided by debian and cause the problem
> -rw-r--r-- 1 root root 1299660 2023-05-01 21:30
> iwlwifi-QuZ-a0-hr-b0-59.ucode -rw-r--r-- 1 root root 1370356 2023-05-01
> 21:30 iwlwifi-QuZ-a0-hr-b0-72.ucode
> 
> I grabbed new fw from a TI git repo, but the debian kernel does not load any
> of them. Is fw signed? Do I need to sign it with my MOK?

Use the upstream repo to get the files. The files aren't signed.
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/

The `dmesg` command will tell you which firmware files it's trying to load.

Then DL that(/those) file(s) from the repo and put them in /lib/firmware/
Then on next boot the kernel will find them.

> -rw-r--r-- 1 root root 1369976 2024-04-03 21:24
> iwlwifi-QuZ-a0-hr-b0-73.ucode -rw-r--r-- 1 root root 1371668 2024-04-03
> 21:24 iwlwifi-QuZ-a0-hr-b0-74.ucode -rw-r--r-- 1 root root 1404184
> 2024-04-03 21:24 iwlwifi-QuZ-a0-hr-b0-77.ucode
> 
> (2) About kernel experiments, unfortunately it is a production server with
> samba-ad and ad replication. It uses btrfs and snapshots work great, but it
> needs some work (disable email services, make snapshots, stop all clients,
> testing, restore snapshots, reenable email, restart clients).
> 
> (3) Instead I will try first to use debian testing on a different NUC, but
> this will take some time.
> 
> 2. April 2024 20:28, "Diederik de Haas" <didi.debian@cknow.org> schrieb:
> > On Tuesday, 2 April 2024 19:54:41 CEST J. Pfennig wrote:
> >> Package: src:linux
> >> Version: 6.1.76-1
> >> Severity: important
> >> Tags: upstream
> > 
> > I am/was inclined to remove that tag, but the problem is likely caused by
> > firmware which is too old for the 'backported' patches that upstream
> > applied.> 
> >> The driver fills the eventlog with millions !!! of messages, see below.
> >> It otherwise works. The problem can be reproduced on different NUC
> >> systems.
> > 
> > If you downgrade the kernel version, does the issue then go away?
> > 
> >> ** Kernel log:
> >> [30911.569896] BTRFS info (device sda4): disk space caching is enabled
> >> [30974.905443] net_ratelimit: 67420 callbacks suppressed
> >> [30974.905457] iwlwifi 0000:00:14.3: Unhandled alg: 0x33f0707
> >> [30974.905728] iwlwifi 0000:00:14.3: Unhandled alg: 0x33f0707
> >> [30974.906036] iwlwifi 0000:00:14.3: Unhandled alg: 0x33f0707
> > 
> > https://unix.stackexchange.com/a/721474 looks related and the solution is
> > to upgrade the firmware to a newer version.
> > That isn't available on Stable, but grabbing ``firmware-iwlwifi`` from
> > Testing should be safe. Not sure if that version is new enough though.
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.gi
> > t
> > is the upstream repo and you could 'grab' the firmware files which `dmesg`
> > reports it can't find.
> > 
> >> -- System Information:
> >> Debian Release: 12.5
> >> APT prefers stable-security
> >> APT policy: (500, 'stable-security'), (500, 'stable')
> >> Architecture: amd64 (x86_64)
> >> 
> >> Versions of packages linux-image-6.1.0-18-amd64 is related to:
> >> ii firmware-amd-graphics 20230210-5
> >> pn firmware-atheros <none>
> >> pn firmware-bnx2 <none>
> >> pn firmware-bnx2x <none>
> >> pn firmware-brcm80211 <none>
> >> pn firmware-cavium <none>
> >> ii firmware-intel-sound 20230210-5
> >> pn firmware-intelwimax <none>
> >> pn firmware-ipw2x00 <none>
> >> pn firmware-ivtv <none>
> >> ii firmware-iwlwifi 20230210-5
> > 
> > My guess is that those 'backported' patches expect newer firmware then
> > that.

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