On 09/12/2017 10:11 AM, Coelho, Luciano wrote: > 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. It's 100% reproducible, I booted in and out of current -git and 4.13-rc7+ a few times and the latter never works while the former works fine. I haven't seen this issue before on previous kernels. > 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. Let me know if you have something I can try. -- Jens Axboe
