Arch Linux

Description: iwlwifi - Intel Wireless 8265 / 8275 broken

Am on a system76 Gazelle. If I downgrade to 4.14.x things seem to work fine. 4.19 is where things broke for me using 'linux' as well.

Additional info:
* package version: 4.19.13-1
* using netctl for wireless config
dmesg output:
$ sudo dmesg | grep iwlwifi
[ 6.803728] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)
[ 6.811282] iwlwifi 0000:03:00.0: loaded firmware version 36.9f0a2d68.0 op_mode iwlmvm
[ 7.164029] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230
[ 7.222573] iwlwifi 0000:03:00.0: base HW address: f8:34:41:d4:47:cf
[ 7.378522] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0
[ 49.115455] iwlwifi 0000:03:00.0: Failed to load firmware chunk!
[ 49.115462] iwlwifi 0000:03:00.0: iwlwifi transaction failed, dumping registers
[ 49.115466] iwlwifi 0000:03:00.0: iwlwifi device config registers:
[ 49.115521] iwlwifi 0000:03:00.0: 00000000: 24fd8086 00100000 02800078 00000000 00000004 00000000 00000000 00000000
[ 49.115527] iwlwifi 0000:03:00.0: 00000020: 00000000 00000000 00000000 10108086 00000000 000000c8 00000000 00000100
[ 49.115530] iwlwifi 0000:03:00.0: iwlwifi device memory mapped registers:
[ 49.115564] iwlwifi 0000:03:00.0: 00000000: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
[ 49.115570] iwlwifi 0000:03:00.0: 00000020: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
[ 49.115577] iwlwifi 0000:03:00.0: iwlwifi device AER capability structure:
[ 49.115605] iwlwifi 0000:03:00.0: 00000000: 14010001 00000000 00000000 00462031 00002000 00002000 00000000 00000000
[ 49.115609] iwlwifi 0000:03:00.0: 00000020: 00000000 00000000 00000000
[ 49.115613] iwlwifi 0000:03:00.0: iwlwifi parent port (0000:00:1c.6) config registers:
[ 49.115641] iwlwifi 0000:00:1c.6: 00000000: a1168086 00100007 060400f1 00810010 00000000 00000000 00030300 200000f0
[ 49.115646] iwlwifi 0000:00:1c.6: 00000020: df00df00 0001fff1 00000000 00000000 00000000 00000040 00000000 001003ff
[ 49.115651] iwlwifi 0000:03:00.0: iwlwifi root port (0000:00:1c.6) AER cap structure:
[ 49.115665] iwlwifi 0000:00:1c.6: 00000000: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000
[ 49.115670] iwlwifi 0000:00:1c.6: 00000020: 00000000 00000000 00000000 00000000 00000000 00000000
[ 49.133218] WARNING: CPU: 2 PID: 1193 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:2009 iwl_trans_pcie_grab_nic_access+0x1e1/0x220 [iwlwifi]
[ 49.133218] Modules linked in: joydev mousedev arc4 iwlmvm snd_hda_codec_hdmi snd_hda_codec_realtek mac80211 snd_hda_codec_generic iwlwifi vboxnetflt(OE) vboxnetadp(OE) vboxpci(OE) uvcvideo btusb btrtl btbcm videobuf2_vmalloc btintel snd_hda_intel intel_rapl videobuf2_memops snd_hda_codec videobuf2_v4l2 bluetooth videobuf2_common vboxdrv(OE) snd_hda_core x86_pkg_temp_thermal vboxvideo(C) intel_powerclamp coretemp nls_iso8859_1 snd_hwdep videodev ttm nls_cp437 vfat snd_pcm iTCO_wdt fat iTCO_vendor_support media cfg80211 kvm_intel snd_timer r8169 ecdh_generic crct10dif_pclmul ghash_clmulni_intel rtsx_pci_ms snd intel_cstate intel_uncore input_leds memstick rfkill libphy soundcore psmouse intel_rapl_perf i2c_i801 pcspkr vboxguest intel_pch_thermal pcc_cpufreq evdev mac_hid ac battery wmi system76_io(OE)
[ 49.133265] RIP: 0010:iwl_trans_pcie_grab_nic_access+0x1e1/0x220 [iwlwifi]
[ 49.133277] iwl_clear_bits_prph+0x37/0x90 [iwlwifi]
[ 49.133281] iwl_pcie_load_section+0x4f3/0x510 [iwlwifi]
[ 49.133287] iwl_pcie_load_cpu_sections_8000.isra.4+0xe9/0x290 [iwlwifi]
[ 49.133291] iwl_trans_pcie_start_fw+0x41a/0x6b0 [iwlwifi]
[ 49.133308] ? iwl_trans_pcie_start_hw+0x59/0x1b0 [iwlwifi]
[ 49.133384] iwlwifi 0000:03:00.0: Could not load the [2] uCode section
[ 49.133388] iwlwifi 0000:03:00.0: Failed to start INIT ucode: -110
[ 49.133407] iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110
[ 49.133408] iwlwifi 0000:03:00.0: Failed to start RT ucode: -110
[ 51.688247] iwlwifi 0000:03:00.0: Could not load the [0] uCode section
[ 51.688251] iwlwifi 0000:03:00.0: Failed to start INIT ucode: -5
[ 51.688252] iwlwifi 0000:03:00.0: Failed to run INIT ucode: -5
[ 51.688253] iwlwifi 0000:03:00.0: Failed to start RT ucode: -5

Steps to reproduce: Boot system, try to load iwlwifi, find that it cannot be loaded

I encountered this issue a few months back with the 'linux' package, but that quickly broke so I switched to linux-lts where iwlwifi loaded and worked fine. Now it seems that linux-lts has caught up enough and the bug has been introduced here as well. Any 4.19 kernel will not load iwlwifi for me. I am willing to provide any additional log output or try any additional steps to get this working.