Re: Bug 215635 - iwlwifi: Firmware crash with firmware 36.ca7b901d.0 (8265-36.ucode)

[Jakub Kicinski <kuba@kernel.org>]

On Mon, 14 Mar 2022 12:51:38 +0100 Thorsten Leemhuis wrote:
> Hi, this is your Linux kernel regression tracker.
> 
> I noticed a regression report in bugzilla.kernel.org that afaics isn't
> properly handled, that's why I decided to forward it to the lists and a
> few relevant people to the CC. To quote from
> https://bugzilla.kernel.org/show_bug.cgi?id=215635 :
> 
> > Seeing the following firmware crash frequently with
> > firmware-version: 36.ca7b901d.0 8265-36.ucode
> > 
> > [...]
> > 
> > Afterwards iwlwifi is entirely unusable, i.e. the hardware does not recover.  
> 
> > I have not been able to observe the problem with 5.15.x so far.
> > 
> > The problem manifests either by Wi-Fi becoming entirely unresponsive (not even ping to gateway works anymore) or by producing a firmware crash.
> > 
> > In response to #3, the problem was most recently observed as a firmware crash on Linux 5.16.13. HW is Intel Corporation Wireless 8265 / 8275 (rev 78) (Windstorm Peak) and firmware version 36.ca7b901d.0 8265-36.ucode.
> > 
> > I'm attaching the dmesg output from 5.16.13 (with the TWT patch mentioned above applied) which includes a firmware crash.  
> 
> Could somebody take a look into this? Or was this discussed somewhere
> else already? Or even fixed?

Any progress / outputs on this one? Folks are reporting it's still
happening on Fedora 36 w/ 5.17.13.