netdev - Re: Linux-6.5 iwlwifi crash

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Date: Wed, 5 Jul 2023 10:37:15 +0200
From: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@...mhuis.info>
To: Jeff Chua <jeff.chua.linux@...il.com>, lkml <linux-kernel@...r.kernel.org>
Cc: Gregory Greenman <gregory.greenman@...el.com>,
 Kalle Valo <kvalo@...nel.org>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>,
 Linux Wireless <linux-wireless@...r.kernel.org>,
 Linux Networking <netdev@...r.kernel.org>,
 Linux Regressions <regressions@...ts.linux.dev>,
 Bagas Sanjaya <bagasdotme@...il.com>
Subject: Re: Linux-6.5 iwlwifi crash

Hi! Thanks for your report.

Side note: is there any relation to the thread[1] you posted this in?
Doesn't look like it from here.

Side note: discussing multiple unrelated issues in one thread increases
the risk a lot that some or all of them are ignored:
https://linux-regtracking.leemhuis.info/post/frequent-reasons-why-linux-kernel-bug-reports-are-ignored/

[1] https://lore.kernel.org/all/ZE0kndhsXNBIb1g7@debian.me/

On 05.07.23 09:24, Jeff Chua wrote:
> Latest linux-6.4

What do you mean by that? From later in the mail it sounds like you mean
latest mainline -- is that correct?

> after June 27 crash my whole linux notebook once
> iwlwifi is loaded. Anyone seeing this?

I haven't heard of any such problems, but that doesn't have to mean much.

> Bisect? Or there's a patch for this?
> 
> # modprobe iwlwifi
> ... Whole system frozen!
> 
> 
> Here's my system before the crash ...
> 
> # dmesg
> cfg80211: Loading compiled-in X.509 certificates for regulatory database
> Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
> iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
> iwlwifi 0000:00:14.3: api flags index 2 larger than supported by driver
> thermal thermal_zone1: failed to read out thermal zone (-61)
> iwlwifi 0000:00:14.3: Sorry - debug buffer is only 4096K while you
> requested 65536K
> 
> # lspci
> 00:14.3 Network controller: Intel Corporation Alder Lake-P PCH CNVi
> WiFi (rev 01)
> 
> # linux git log
> commit d528014517f2b0531862c02865b9d4c908019dc4 (HEAD -> master,
> origin/master, origin/HEAD)
> Author: Linus Torvalds <torvalds@...ux-foundation.org>
> Date:   Tue Jul 4 15:05:12 2023 -0700
> 
> # lsmodModule                  Size  Used by
> iwlmvm                397312  0
> mac80211              626688  1 iwlmvm
> iwlwifi               307200  1 iwlmvm
> cfg80211              413696  3 iwlmvm,iwlwifi,mac80211
> 
> 
> Bisect?

If none of the others CCed comes up with an idea within the next few
hours then yes please!

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.