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Re: iwlwifi firmware load broken in current -git

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Hi Jens,

On Tue, 2017-09-12 at 09:48 -0600, Jens Axboe wrote:
> Hi,
> 
> I have no wifi in current git (8fac2f96ab8), it simply fails with:
> 
> [    4.363481] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-34.ucode failed with error -2
> [    4.363733] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2
> [    4.363744] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2
> [    4.368077] iwlwifi 0000:04:00.0: loaded firmware version 31.532993.0 op_mode iwlmvm
> [    4.461753] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
> [ ... ]
> [    9.510570] iwlwifi 0000:04:00.0: Failed to load firmware chunk!             
> [    9.513903] iwlwifi 0000:04:00.0: Could not load the [0] uCode section       
> [    9.516201] iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110           
> [    9.530842] iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110             
> 
> I get the same thing with -27 of the firmware:
> 
> [   60.990831] Intel(R) Wireless WiFi driver for Linux                          
> [   60.990833] Copyright(c) 2003- 2015 Intel Corporation                        
> [   60.991936] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-34.ucode failed with error -2
> [   60.991941] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2
> [   60.991946] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2
> [   60.991957] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-31.ucode failed with error -2
> [   60.991964] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-30.ucode failed with error -2
> [   60.991969] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-29.ucode failed with error -2
> [   60.991975] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-28.ucode failed with error -2
> [   61.029852] iwlwifi 0000:04:00.0: loaded firmware version 27.541033.0 op_mode iwlmvm
> [   61.043660] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
> [   66.070135] iwlwifi 0000:04:00.0: Failed to load firmware chunk!             
> [   66.070149] iwlwifi 0000:04:00.0: Could not load the [0] uCode section       
> [   66.070165] iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110           
> [   66.083462] iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110             
> 
> Things work fine in 4.13-rc7+, which was the last kernel I ran on my laptop.

This is strange, Linus has been running this same combination with -31
(with -27 we had a regression, but it was fixed recently and the fix is
in the current master).  I have also tried this combination with both
-27 and -31 after my fix and it works fine.

There are only a couple of other patches that may affect iwlwifi since
the previous net-next.git pull request...

I'll try this combination on my machine and see if I can reproduce the
problem.

--
Cheers,
Luca.





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