A recent OS update (I can't be certain if it was the kernel, Linux firmware, or both) resulted in a new error in dmesg: [ 8.258877] iwlwifi 0000:04:00.0: capa flags index 3 larger than supported by driver I have not been experiencing any worse performance from the device than usual, but per [#194717](https://bugzilla.kernel.org/show_bug.cgi?id=194717) usual is pretty bad. This appears to be the same bug as in https://bugzilla.redhat.com/show_bug.cgi?id=1452746 ``` $ sudo lshw -C network -sanitize *-network description: Wireless interface product: Wireless 8260 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlp4s0 version: 3a serial: [REMOVED] width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=4.11.5-1-ARCH firmware=27.455470.0 ip=[REMOVED] latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:129 memory:f1000000-f1001fff ``` ``` $ pacman -Qi linux-firmware Name : linux-firmware Version : 20170422.ade8332-1 Description : Firmware files for Linux ... Build Date : Thu 04 May 2017 11:32:30 PM PDT ``` ``` $ uname -a Linux slate 4.11.5-1-ARCH #1 SMP PREEMPT Wed Jun 14 16:19:27 CEST 2017 x86_64 GNU/Linux ``` ``` $ dmesg | grep -C10 'iwlwifi' [ 8.231183] i801_smbus 0000:00:1f.4: SPD Write Disable is set [ 8.231253] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt [ 8.232549] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 [ 8.232848] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 8.236316] iTCO_vendor_support: vendor-support=0 [ 8.236910] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 [ 8.237038] iTCO_wdt: Found a Intel PCH TCO device (Version=4, TCOBASE=0x0400) [ 8.237208] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0) [ 8.250954] Intel(R) Wireless WiFi driver for Linux [ 8.250955] Copyright(c) 2003- 2015 Intel Corporation [ 8.251261] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002) [ 8.253700] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-28.ucode failed with error -2 [ 8.258877] iwlwifi 0000:04:00.0: capa flags index 3 larger than supported by driver [ 8.259349] iwlwifi 0000:04:00.0: loaded firmware version 27.455470.0 op_mode iwlmvm [ 8.277439] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208 [ 8.279208] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 8.280341] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 8.340278] psmouse serio1: synaptics: queried max coordinates: x [..5678], y [..4754] [ 8.370084] psmouse serio1: synaptics: queried min coordinates: x [1262..], y [1098..] [ 8.422820] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' [ 8.423064] (NULL device *): hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info(). [ 8.423087] thermal thermal_zone3: failed to read out thermal zone (-5) [ 8.424333] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0 [ 8.427995] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1, caps: 0xf002a3/0x940300/0x12e800/0x0, board id: 3144, fw id: 2059155 [ 8.427999] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0 [ 8.447870] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock [ 8.465060] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input6 [ 8.466297] mousedev: PS/2 mouse device common for all mice [ 8.529365] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 54:ee:75:bb:cb:8d [ 8.529372] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection [ 8.529433] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: 1000FF-0FF [ 8.530772] [drm] Memory usable by graphics device = 4096M [ 8.530775] checking generic (e0000000 e10000) vs hw (e0000000 10000000) ```
Created attachment 257221 [details] Fix Please check with this.
Created attachment 257241 [details] Patch that was applied
I couldn't locate the exact file from your patch, but I was able to formulate an equivalent one. For reference, this is the tree I'm working on: ``` slate% git remote show origin * remote origin Fetch URL: https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git Push URL: https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git slate% git show HEAD^ | head -n 3 commit 8f1a7f43d199ef47f466040c3d0160d1e610979f Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Date: Tue Jun 27 12:23:56 2017 +0300 ``` I can confirm that this removes the error message on boot. ``` slate% dmesg | grep 'iwlwifi' [ 7.755349] Loading modules backported from iwlwifi [ 7.755349] iwlwifi-stack-public:release/LinuxCore30:6324:fa7904b8 [ 7.771272] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002) [ 7.773934] iwlwifi 0000:04:00.0: Direct firmware load for iwl-dbg-cfg.ini failed with error -2 [ 7.773947] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2 [ 7.773953] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2 [ 7.773959] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-31.ucode failed with error -2 [ 7.773964] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-30.ucode failed with error -2 [ 7.773970] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-29.ucode failed with error -2 [ 7.773975] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-28.ucode failed with error -2 [ 7.779184] iwlwifi 0000:04:00.0: loaded firmware version 27.455470.0 op_mode iwlmvm [ 7.793490] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208 [ 7.868771] iwlwifi 0000:04:00.0: base HW address: 34:f3:9a:XX:XX:XX [ 7.946488] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0 ```
Yeah, so I had the patch for our backport tree, and then I changed it to apply on the kernel but since you had the backport tree, it didn't apply. Anyway, closing the bug, the patch will make its way upstream.