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SubjectRe: IWL AC 8260, kernel 5.3.*, many kernel WARNING
Date
Norbert Preining <norbert@preining.info> writes:

> Dear all,
>
> (please cc)
>
> linux 5.3.1
> Debian/sid
> Thinkpad X260
> iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
> iwlwifi 0000:04:00.0: loaded firmware version 36.8fd77bb3.0 op_mode iwlmvm
>
> since about 5.3.0 I get a lot of warnings in the syslog about iwlmvm.
>
> It starts with
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Microcode SW error detected. Restarting 0x82000000.
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Start IWL Error Log Dump:
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Status: 0x00000080, count: 6
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Loaded firmware version: 36.8fd77bb3.0
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: 0x00000038 | BAD_COMMAND
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: 0x000002F0 | trm_hw_status0
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: 0x00000000 | trm_hw_status1
> ....
>
> after that
> Sep 27 09:08:35 burischnitzel kernel: ieee80211 phy0: Hardware restart was requested
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW Error notification: type 0x00000000 cmd_id 0x05
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW Error notification: seq 0x0030 service 0x00000005
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW Error notification: timestamp 0x000000000037F460
> Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW error in SYNC CMD GEO_TX_POWER_LIMIT

I'm guessing this should fix it:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git/commit/?id=fddbfeece9c7882cc47754c7da460fe427e3e85b

--
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

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