2023-12-07 01:00:54

by Paul Grandperrin

[permalink] [raw]
Subject: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning (looks like firmware bug)

Hi!

My system was running fine, no errors in the logs, and then it started
to happen, an infinite flow of oops in the kernel logs.

The bug seems to happen in "__ieee80211_scan_completed" and it seems to
involve the firmware: "Microcode SW error detected. Restarting",
"ieee80211 phy0: Hardware restart was requested" and "iwlwifi
0000:02:00.0: FW error in SYNC CMD SCAN_REQ_UMAC".

Since then, the iwlwifi module oops all the time, even after unloading
and reloading it.

My system:
NixOS 23.11
Linux 6.6.3
Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420
firmware version: 83.e8f84e98.0 ty-a0-gf-a0-83.ucode

Here's the logs attached and more info about my system.

I tried very hard to get decode_stacktrace.sh to works with module
symbols but the NixOS file hierarchy makes things quite difficult.
I can try again if needed.


Sincerly,
Paul Grandperrin








Attachments:
ioports (1.24 kB)
ver_linux (3.63 kB)
cpuinfo (11.69 kB)
bug-iwl-reload.txt (15.33 kB)
lspci (20.01 kB)
modules (15.74 kB)
iomem (4.21 kB)
bug-iwl.txt (32.07 kB)
Download all attachments

2023-12-07 10:16:34

by Miri Korenblit

[permalink] [raw]
Subject: RE: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning (looks like firmware bug)


> -----Original Message-----
> From: Paul Grandperrin <[email protected]>
> Sent: Thursday, December 07, 2023 03:00
> To: Greenman, Gregory <[email protected]>
> Cc: [email protected]
> Subject: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning (looks like
> firmware bug)
>
> Hi!
>
> My system was running fine, no errors in the logs, and then it started to happen,
> an infinite flow of oops in the kernel logs.
>
> The bug seems to happen in "__ieee80211_scan_completed" and it seems to
> involve the firmware: "Microcode SW error detected. Restarting",
> "ieee80211 phy0: Hardware restart was requested" and "iwlwifi
> 0000:02:00.0: FW error in SYNC CMD SCAN_REQ_UMAC".
>
> Since then, the iwlwifi module oops all the time, even after unloading and
> reloading it.
>
> My system:
> NixOS 23.11
> Linux 6.6.3
> Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420 firmware version: 83.e8f84e98.0 ty-
> a0-gf-a0-83.ucode
>
> Here's the logs attached and more info about my system.
>
> I tried very hard to get decode_stacktrace.sh to works with module symbols but
> the NixOS file hierarchy makes things quite difficult.
> I can try again if needed.
>
>
> Sincerly,
> Paul Grandperrin
>
>
>
>
>
>

Hi Paul,

Can you please open a bug in Bugzilla, so we can handle it there?

Please attach there a sniffer capture and a trace-cmd log.
This is how to: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging

Thanks,
Miri



2023-12-07 11:32:10

by Paul Grandperrin

[permalink] [raw]
Subject: RE: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning (looks like firmware bug)

Sorry, last time I openned a bug there, there was no answers, only the
mailing list was monitored.

I opened https://bugzilla.kernel.org/show_bug.cgi?id=218239

On Thu, Dec 7 2023 at 10:16:25 +00:00:00, "Korenblit, Miriam Rachel"
<[email protected]> wrote:
>
>> -----Original Message-----
>> From: Paul Grandperrin <[email protected]>
>> Sent: Thursday, December 07, 2023 03:00
>> To: Greenman, Gregory <[email protected]>
>> Cc: [email protected]
>> Subject: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning
>> (looks like
>> firmware bug)
>>
>> Hi!
>>
>> My system was running fine, no errors in the logs, and then it
>> started to happen,
>> an infinite flow of oops in the kernel logs.
>>
>> The bug seems to happen in "__ieee80211_scan_completed" and it
>> seems to
>> involve the firmware: "Microcode SW error detected. Restarting",
>> "ieee80211 phy0: Hardware restart was requested" and "iwlwifi
>> 0000:02:00.0: FW error in SYNC CMD SCAN_REQ_UMAC".
>>
>> Since then, the iwlwifi module oops all the time, even after
>> unloading and
>> reloading it.
>>
>> My system:
>> NixOS 23.11
>> Linux 6.6.3
>> Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420 firmware version:
>> 83.e8f84e98.0 ty-
>> a0-gf-a0-83.ucode
>>
>> Here's the logs attached and more info about my system.
>>
>> I tried very hard to get decode_stacktrace.sh to works with module
>> symbols but
>> the NixOS file hierarchy makes things quite difficult.
>> I can try again if needed.
>>
>>
>> Sincerly,
>> Paul Grandperrin
>>
>>
>>
>>
>>
>>
>
> Hi Paul,
>
> Can you please open a bug in Bugzilla, so we can handle it there?
>
> Please attach there a sniffer capture and a trace-cmd log.
> This is how to:
> https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging
>
> Thanks,
> Miri
>
>