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Date: Thu, 30 Nov 2023 11:25:32 +0100 From: Oliver Neukum <oneukum@...e.com> To: Gregory Greenman <gregory.greenman@...el.com> Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: debugfs problems in iwlwifi in latest kernels Hi, I am getting these reports with the latest kernels (head at 3b47bc037bd44f142ac09848e8d3ecccc726be99) [ 8.744119] Intel(R) Wireless WiFi driver for Linux [ 8.746363] iwlwifi 0000:01:00.0: enabling device (0000 -> 0002) [ 8.758343] iwlwifi 0000:01:00.0: Detected crf-id 0x2816, cnv-id 0x1000200 wfpm id 0x80000000 [ 8.759641] iwlwifi 0000:01:00.0: PCI dev 2526/0014, rev=0x321, rfid=0x105110 [ 8.854357] iwlwifi 0000:01:00.0: WRT: Overriding region id 0 [ 8.856851] iwlwifi 0000:01:00.0: WRT: Overriding region id 1 [ 8.859258] iwlwifi 0000:01:00.0: WRT: Overriding region id 2 [ 8.859265] iwlwifi 0000:01:00.0: WRT: Overriding region id 3 [ 8.859269] iwlwifi 0000:01:00.0: WRT: Overriding region id 4 [ 8.859273] iwlwifi 0000:01:00.0: WRT: Overriding region id 6 [ 8.859276] iwlwifi 0000:01:00.0: WRT: Overriding region id 8 [ 8.859279] iwlwifi 0000:01:00.0: WRT: Overriding region id 9 [ 8.859282] iwlwifi 0000:01:00.0: WRT: Overriding region id 10 [ 8.859285] iwlwifi 0000:01:00.0: WRT: Overriding region id 11 [ 8.859288] iwlwifi 0000:01:00.0: WRT: Overriding region id 15 [ 8.859292] iwlwifi 0000:01:00.0: WRT: Overriding region id 16 [ 8.859295] iwlwifi 0000:01:00.0: WRT: Overriding region id 18 [ 8.859298] iwlwifi 0000:01:00.0: WRT: Overriding region id 19 [ 8.859301] iwlwifi 0000:01:00.0: WRT: Overriding region id 20 [ 8.859304] iwlwifi 0000:01:00.0: WRT: Overriding region id 21 [ 8.859308] iwlwifi 0000:01:00.0: WRT: Overriding region id 28 [ 8.860155] iwlwifi 0000:01:00.0: loaded firmware version 46.ff18e32a.0 9260-th-b0-jf-b0-46.ucode op_mode iwlmvm [ 9.130468] iwlwifi 0000:01:00.0: Detected Intel(R) Wireless-AC 9260 160MHz, REV=0x321 [ 9.131531] thermal thermal_zone0: failed to read out thermal zone (-61) [ 9.188374] iwlwifi 0000:01:00.0: base HW address: 38:68:93:82:ee:b6, OTP minor version: 0x4 [ 12.122360] iwlwifi 0000:01:00.0: Registered PHC clock: iwlwifi-PTP, with index: 0 [ 12.369551] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 12.371131] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 12.622862] r8152 3-1.1:1.0 eth3: carrier on [ 12.865883] NET: Registered PF_PACKET protocol family [ 23.422934] device-mapper: uevent: version 1.0.3 [ 23.423136] device-mapper: ioctl: 4.48.0-ioctl (2023-03-01) initialised: dm-devel@...hat.com [ 424.025821] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 424.025854] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 719.828959] BTRFS info (device nvme0n1p2): qgroup scan paused [ 836.020932] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 836.020965] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 1010.127770] NOHZ tick-stop error: local softirq work is pending, handler #08!!! [ 1248.043519] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 1248.043551] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 1423.400973] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 1423.401003] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 1423.436864] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 1423.436880] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 1426.544779] warning: `kded5' uses wireless extensions which will stop working for Wi-Fi 7 hardware; use nl80211 [ 1426.690498] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 1426.690640] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 1446.809198] wlan0: 80 MHz not supported, disabling VHT [ 1446.815785] wlan0: authenticate with cc:ce:1e:f4:37:95 (local address=38:68:93:82:ee:b6) [ 1446.816863] wlan0: send auth to cc:ce:1e:f4:37:95 (try 1/3) [ 1446.958933] wlan0: send auth to cc:ce:1e:f4:37:95 (try 2/3) [ 1447.066528] wlan0: send auth to cc:ce:1e:f4:37:95 (try 3/3) [ 1447.168961] wlan0: authentication with cc:ce:1e:f4:37:95 timed out [ 1447.368481] wlan0: 80 MHz not supported, disabling VHT [ 1447.373729] wlan0: authenticate with e0:28:6d:fd:37:95 (local address=38:68:93:82:ee:b6) [ 1447.374741] wlan0: send auth to e0:28:6d:fd:37:95 (try 1/3) [ 1447.416245] wlan0: authenticated [ 1447.418936] wlan0: associate with e0:28:6d:fd:37:95 (try 1/3) [ 1447.424934] wlan0: RX AssocResp from e0:28:6d:fd:37:95 (capab=0x1431 status=0 aid=2) [ 1447.430187] wlan0: associated [ 1447.482515] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:fd:37:95 [ 1458.346586] wlan0: deauthenticating from e0:28:6d:fd:37:95 by local choice (Reason: 3=DEAUTH_LEAVING) [ 1459.320382] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 1459.320434] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 1870.031487] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 1870.031547] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 2283.028582] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 2283.028623] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 2697.046828] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 2697.046902] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 3109.031148] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 3109.031171] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 3521.035194] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 3521.035227] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 3934.038809] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 3934.038837] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 4346.040215] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 4346.040319] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 4760.046923] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 4760.046946] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 [ 5173.051589] debugfs: Directory 'iwlmvm' with parent 'netdev:wlan0' already present! [ 5173.051664] iwlwifi 0000:01:00.0: Failed to create debugfs directory under netdev:wlan0 The device is functional in spite of the warnings. Debugfs shows: localhost:/home/oneukum # ll /sys/kernel/debug/iwlwifi/0000\:01\:00.0/iwlmvm/ insgesamt 0 -r-------- 1 root root 0 30. Nov 09:22 bt_cmd --w------- 1 root root 0 30. Nov 09:22 bt_force_ant -r-------- 1 root root 0 30. Nov 09:22 bt_notif --w------- 1 root root 0 30. Nov 09:22 bt_tx_prio -r-------- 1 root root 0 30. Nov 09:22 ctdp_budget -r-------- 1 root root 0 30. Nov 09:22 d3_test -rw------- 1 root root 0 30. Nov 09:22 d3_wake_sysassert --w------- 1 root root 0 30. Nov 09:22 dbg_time_point -rw------- 1 root root 0 30. Nov 09:22 disable_power_off -rw------- 1 root root 0 30. Nov 09:22 drop_bcn_ap_mode -r-------- 1 root root 0 30. Nov 09:22 drv_rx_stats --w------- 1 root root 0 30. Nov 09:22 enabled_severities -rw------- 1 root root 0 30. Nov 09:22 enable_scan_iteration_notif --w------- 1 root root 0 30. Nov 09:22 force_ctkill --w------- 1 root root 0 30. Nov 09:22 fw_dbg_collect -rw------- 1 root root 0 30. Nov 09:22 fw_dbg_conf -r-------- 1 root root 0 30. Nov 09:22 fw_dbg_domain --w------- 1 root root 0 30. Nov 09:22 fw_info --w------- 1 root root 0 30. Nov 09:22 fw_nmi --w------- 1 root root 0 30. Nov 09:22 fw_restart -r-------- 1 root root 0 30. Nov 09:22 fw_rx_stats -r-------- 1 root root 0 30. Nov 09:22 fw_system_stats -r-------- 1 root root 0 30. Nov 09:22 fw_ver -rw------- 1 root root 0 30. Nov 09:22 he_sniffer_params --w------- 1 root root 0 30. Nov 09:22 indirection_tbl --w------- 1 root root 0 30. Nov 09:22 inject_beacon_ie --w------- 1 root root 0 30. Nov 09:22 inject_beacon_ie_restore --w------- 1 root root 0 30. Nov 09:22 inject_packet -r-------- 1 root root 0 30. Nov 09:22 last_netdetect_scans -rw------- 1 root root 0 30. Nov 09:22 mem lrwxrwxrwx 1 root root 0 30. Nov 09:22 netdev:p2p-dev-wlan0 -> ../../../ieee80211/phy0/netdev:p2p-dev-wlan0/iwlmvm lrwxrwxrwx 1 root root 0 30. Nov 11:22 netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm -r-------- 1 root root 0 30. Nov 09:22 nic_temp -r-------- 1 root root 0 30. Nov 09:22 nvm_calib -r-------- 1 root root 0 30. Nov 09:22 nvm_hw -r-------- 1 root root 0 30. Nov 09:22 nvm_phy_sku -r-------- 1 root root 0 30. Nov 09:22 nvm_prod -r-------- 1 root root 0 30. Nov 09:22 nvm_reg -r-------- 1 root root 0 30. Nov 09:22 nvm_sw -rw------- 1 root root 0 30. Nov 09:22 prph_reg -r-------- 1 root root 0 30. Nov 09:22 ps_disabled -rw------- 1 root root 0 30. Nov 09:22 rfi_freq_table -r-------- 1 root root 0 30. Nov 09:22 sar_geo_profile -rw------- 1 root root 0 30. Nov 09:22 scan_ant_rxchain --w------- 1 root root 0 30. Nov 09:22 send_echo_cmd --w------- 1 root root 0 30. Nov 09:22 send_hcmd -rw------- 1 root root 0 30. Nov 09:22 set_nic_temperature -rw------- 1 root root 0 30. Nov 09:22 sram --w------- 1 root root 0 30. Nov 09:22 sta_drain --w------- 1 root root 0 30. Nov 09:22 start_ctdp -r-------- 1 root root 0 30. Nov 09:22 stations --w------- 1 root root 0 30. Nov 09:22 stop_ctdp -r-------- 1 root root 0 30. Nov 09:22 tas_get_status --w------- 1 root root 0 30. Nov 09:22 timestamp_marker --w------- 1 root root 0 30. Nov 09:22 tx_flush -r-------- 1 root root 0 30. Nov 09:22 uapsd_noagg_bssids -r-------- 1 root root 0 30. Nov 09:22 wifi_6e_enable Regards Oliver
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