Intel® Wireless-AC 9560 crash with kernel updates

[siva3]

Hello,

This is a continuation for the closed thread

https://community.intel.com/t5/Wireless/Intel-Wireless-AC-9560-crash-with-kernel-updates/m-p/1345368#M39418

In response to the questions asked there,

1. Laptop

2. original wireless adapter

3. No

4. i reinstalled kernel 5.15, copied the latest firmware from 

https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/

uname -a
Linux siva-Inspiron-7586 5.15.11-051511-generic #202112241501-Ubuntu SMP Fri Dec 24 15:08:50 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

sudo cksum /lib/firmware/iwlwifi-9000-pu-b0-jf-b0-46.ucode
4223888879 1519264 /lib/firmware/iwlwifi-9000-pu-b0-jf-b0-46.ucode

Also, attached the SSU output

[David_G_Intel]

Hello @siva3

Thank you for posting on the Intel️® communities. Let me check the reports provided and I will post the updates on the thread.

Regards, 

David G 

Intel Customer Support Technician

[David_G_Intel]

@siva3 to continue with the investigation there is some information that we need, please share with us the results of the following commands:

1. lspci 
2. modinfo iwlwifi 
3. lsmod | grep iwlwifi​, if the result is empty, please type: dmesg | grep iwlwifi​
4. dmesg | grep “no suitable firmware found!”​
5. dmesg | grep ASSERT​
6. Complete dmesg logs: dmesg > dmesg.log

Regards, 

David G 

Intel Customer Support Technician

[siva3]

hi, 

See the attached files

[David_G_Intel]

Thank you for the information provided, please let me review this information and I will post the updates on the thread

Regards, 

David G 

Intel Customer Support Technician

[David_G_Intel]

Hello @siva3

After checking the information provided it seems that there might be a hardware problem with the newer kernel, and the AC9560 randomly fails to be initialized. Here are some workarounds that may help:

• https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi#about_platform_noise

Other options you can try are: 

1. Try to perform a full power cycle to remove the battery and unplug/plug charger; or check with system manufacturer to fully reset the system.
2. Roll back to the older kernel or BIOS version in which AC9560 used to be working.

If none of the steps work, please contact the system manufacturer for further assistance.

Regards, 

David G 

Intel Customer Support Technician