Hello, Just add another error this morning. You can find my dmesg -T output as attachement. Some context: * the error occured right after laptop boot * My Wifi setup: AP was forced to use frequency of 5240GHz and offered 20/40/80MHz channel width. Moving AP to 5180GHz solve the issue. My understanding: It *seems* that iwlwifi could have issues with DFS frequencies, not with channel width. My last report was also linked to DFS channels being used. Moving away from DFS channel solve the issue, at least for me. Have a nice day, Jean Baptiste
[Fri Feb 19 08:52:32 2021] wlo1: authenticate with cc:2d:e0:97:99:de [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0. [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Start IWL Error Log Dump: [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Status: 0x00000040, count: 6 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Loaded firmware version: 46.4d093a30.0 9000-pu-b0-jf-b0-46.ucode [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x000014FD | ADVANCED_SYSASSERT [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00A022F0 | trm_hw_status0 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | trm_hw_status1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00488876 | branchlink2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00478E36 | interruptlink1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | interruptlink2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000002E | data1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xDEADBEEF | data2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xDEADBEEF | data3 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | beacon time [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0049D5BB | tsf low [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | tsf hi [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | time gp1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0049D5BD | time gp2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000001 | uCode revision type [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000002E | uCode version major [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x4D093A30 | uCode version minor [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000312 | hw version [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00489008 | board version [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x803EF405 | hcmd [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00022000 | isr0 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | isr1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x08201802 | isr2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00413C80 | isr3 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | isr4 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x003E019F | last cmd Id [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0001AE22 | wait_event [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x000000B4 | l2p_control [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | l2p_duration [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000000F | l2p_mhvalid [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | l2p_addr_match [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000000D | lmpm_pmg_sel [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x01102344 | timestamp [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00007098 | flow_handler [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Start IWL Error Log Dump: [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Status: 0x00000040, count: 7 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x20000070 | NMI_INTERRUPT_LMAC_FATAL [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xC0088BBE | umac branchlink2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x010195B4 | umac interruptlink1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0101B68C | umac interruptlink2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000800 | umac data1 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0101B68C | umac data2 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xDEADBEEF | umac data3 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000002E | umac major [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x4D093A30 | umac minor [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0049D5D8 | frame pointer [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xC0887530 | stack pointer [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x003F0108 | last host cmd [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | isr status reg [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Fseq Registers: [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x23D682E2 | FSEQ_ERROR_CODE [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x00000000 | FSEQ_TOP_INIT_VERSION [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xA8E09D2B | FSEQ_CNVIO_INIT_VERSION [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x552CD1D2 | FSEQ_TOP_CONTENT_VERSION [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x1FDD4AB3 | FSEQ_ALIVE_TOKEN [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xC884240F | FSEQ_CNVI_ID [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xE42AB7E8 | FSEQ_CNVR_ID [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x01000100 | CNVI_AUX_MISC_CHIP [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x01300202 | CNVR_AUX_MISC_CHIP [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: WRT: Collecting data: ini trigger 4 fired. [Fri Feb 19 08:52:32 2021] ieee80211 phy0: Hardware restart was requested [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: iwlwifi transaction failed, dumping registers [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: iwlwifi device config registers: [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000000: 9df08086 00100406 02800030 00800010 cc31c004 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000020: 00000000 00000000 00000000 40308086 00000000 000000c8 00000000 000001ff [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000040: 00928010 10000ec0 00100c10 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000060: 00000000 00080812 00000405 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000080: 800f0011 00002000 00003000 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 000000a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 000000c0: 00000000 00000000 c823d001 0d000008 00804005 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000100: 14c00000 ff000000 000000ff 00462031 00000000 00002000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000140: 00000000 00000000 00000000 16410018 00000000 0001001e 00481e1f 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: iwlwifi device memory mapped registers: [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000000: 00489008 00000040 00000000 00000000 00000000 00000000 00000000 00000000 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: 00000020: 00000000 0c040005 00000312 d55555d5 d55555d5 d55555d5 80008040 041f0042 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: FW error in SYNC CMD PHY_CONTEXT_CMD [Fri Feb 19 08:52:32 2021] CPU: 1 PID: 804 Comm: wpa_supplicant Not tainted 5.10.0-3-amd64 #1 Debian 5.10.13-1 [Fri Feb 19 08:52:32 2021] Hardware name: Dell Inc. Latitude 7400/07WDVW, BIOS 1.11.1 10/30/2020 [Fri Feb 19 08:52:32 2021] Call Trace: [Fri Feb 19 08:52:32 2021] dump_stack+0x6b/0x83 [Fri Feb 19 08:52:32 2021] iwl_trans_pcie_send_hcmd+0x37c/0x390 [iwlwifi] [Fri Feb 19 08:52:32 2021] ? add_wait_queue_exclusive+0x70/0x70 [Fri Feb 19 08:52:32 2021] iwl_trans_send_cmd+0x51/0xb0 [iwlwifi] [Fri Feb 19 08:52:32 2021] iwl_mvm_send_cmd_pdu+0x4a/0x80 [iwlmvm] [Fri Feb 19 08:52:32 2021] iwl_mvm_phy_ctxt_apply+0x1b9/0x3b0 [iwlmvm] [Fri Feb 19 08:52:32 2021] iwl_mvm_change_chanctx+0x117/0x160 [iwlmvm] [Fri Feb 19 08:52:32 2021] drv_change_chanctx+0x3f/0xb0 [mac80211] [Fri Feb 19 08:52:32 2021] ieee80211_recalc_chanctx_min_def+0x1ad/0x270 [mac80211] [Fri Feb 19 08:52:32 2021] ieee80211_assign_vif_chanctx+0x256/0x420 [mac80211] [Fri Feb 19 08:52:32 2021] ieee80211_vif_use_channel+0x21a/0x270 [mac80211] [Fri Feb 19 08:52:32 2021] ieee80211_prep_connection+0x53e/0x9a0 [mac80211] [Fri Feb 19 08:52:32 2021] ieee80211_mgd_auth.cold+0xba/0x164 [mac80211] [Fri Feb 19 08:52:32 2021] cfg80211_mlme_auth+0x127/0x210 [cfg80211] [Fri Feb 19 08:52:32 2021] nl80211_authenticate+0x2a1/0x2f0 [cfg80211] [Fri Feb 19 08:52:32 2021] genl_family_rcv_msg_doit+0xea/0x150 [Fri Feb 19 08:52:32 2021] genl_rcv_msg+0xde/0x1d0 [Fri Feb 19 08:52:32 2021] ? nl80211_parse_key+0x2f0/0x2f0 [cfg80211] [Fri Feb 19 08:52:32 2021] ? genl_get_cmd+0xd0/0xd0 [Fri Feb 19 08:52:32 2021] netlink_rcv_skb+0x50/0xf0 [Fri Feb 19 08:52:32 2021] genl_rcv+0x24/0x40 [Fri Feb 19 08:52:32 2021] netlink_unicast+0x201/0x2c0 [Fri Feb 19 08:52:32 2021] netlink_sendmsg+0x243/0x480 [Fri Feb 19 08:52:32 2021] sock_sendmsg+0x5e/0x60 [Fri Feb 19 08:52:32 2021] ____sys_sendmsg+0x22e/0x270 [Fri Feb 19 08:52:32 2021] ? import_iovec+0x2d/0x30 [Fri Feb 19 08:52:32 2021] ? sendmsg_copy_msghdr+0x7c/0xa0 [Fri Feb 19 08:52:32 2021] ___sys_sendmsg+0x75/0xb0 [Fri Feb 19 08:52:32 2021] ? unix_ioctl+0x56/0x70 [Fri Feb 19 08:52:32 2021] ? sock_do_ioctl+0x3c/0x130 [Fri Feb 19 08:52:32 2021] ? __cgroup_bpf_run_filter_setsockopt+0xbe/0x310 [Fri Feb 19 08:52:32 2021] __sys_sendmsg+0x59/0xa0 [Fri Feb 19 08:52:32 2021] do_syscall_64+0x33/0x80 [Fri Feb 19 08:52:32 2021] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [Fri Feb 19 08:52:32 2021] RIP: 0033:0x7f8aa8d442c3 [Fri Feb 19 08:52:32 2021] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 89 54 24 1c 48 [Fri Feb 19 08:52:32 2021] RSP: 002b:00007ffd43071a08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [Fri Feb 19 08:52:32 2021] RAX: ffffffffffffffda RBX: 00005639550f2ec0 RCX: 00007f8aa8d442c3 [Fri Feb 19 08:52:32 2021] RDX: 0000000000000000 RSI: 00007ffd43071a40 RDI: 0000000000000006 [Fri Feb 19 08:52:32 2021] RBP: 000056395513f610 R08: 0000000000000004 R09: 00007f8aa8e03be0 [Fri Feb 19 08:52:32 2021] R10: 00007ffd43071b14 R11: 0000000000000246 R12: 00005639550f2dd0 [Fri Feb 19 08:52:32 2021] R13: 00007ffd43071a40 R14: 00007ffd43071b14 R15: 0000563955152ad0 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: PHY ctxt cmd error. ret=-5 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: failed to update MAC d8:3b:bf:c4:1e:a9 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: failed to update MAC d8:3b:bf:c4:1e:a9 [Fri Feb 19 08:52:32 2021] wlo1: failed to insert STA entry for the AP (error -5) [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: failed to update MAC d8:3b:bf:c4:1e:a9 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Failed to send binding (action:3): -5 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: failed to update MAC d8:3b:bf:c4:1e:a9 [Fri Feb 19 08:52:32 2021] iwlwifi 0000:00:14.3: PHY ctxt cmd error. ret=-5 [Fri Feb 19 08:52:32 2021] wlo1: authenticate with cc:2d:e0:97:99:dd [Fri Feb 19 08:52:32 2021] wlo1: send auth to cc:2d:e0:97:99:dd (try 1/3) [Fri Feb 19 08:52:32 2021] wlo1: authenticated [Fri Feb 19 08:52:32 2021] wlo1: associate with cc:2d:e0:97:99:dd (try 1/3) [Fri Feb 19 08:52:32 2021] wlo1: RX AssocResp from cc:2d:e0:97:99:dd (capab=0x401 status=0 aid=1) [Fri Feb 19 08:52:32 2021] wlo1: associated [Fri Feb 19 08:52:32 2021] IPv6: ADDRCONF(NETDEV_CHANGE): wlo1: link becomes ready [Fri Feb 19 08:52:40 2021] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7 [Fri Feb 19 08:53:59 2021] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7 [Fri Feb 19 08:54:07 2021] wlo1: deauthenticating from cc:2d:e0:97:99:dd by local choice (Reason: 3=DEAUTH_LEAVING) [Fri Feb 19 08:54:10 2021] wlo1: authenticate with cc:2d:e0:97:99:de [Fri Feb 19 08:54:10 2021] wlo1: send auth to cc:2d:e0:97:99:de (try 1/3) [Fri Feb 19 08:54:10 2021] wlo1: authenticated [Fri Feb 19 08:54:10 2021] wlo1: associate with cc:2d:e0:97:99:de (try 1/3) [Fri Feb 19 08:54:10 2021] wlo1: RX AssocResp from cc:2d:e0:97:99:de (capab=0x401 status=0 aid=1) [Fri Feb 19 08:54:10 2021] wlo1: associated [Fri Feb 19 08:54:10 2021] IPv6: ADDRCONF(NETDEV_CHANGE): wlo1: link becomes ready
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