Hi, I've been running 5.5 for the last few weeks with a new computer (Thinkpad P1 Gen 2) that has an AX200, and I've collected four problems, described below. lspci is "52:00.0 0280: 8086:2723" and kernel is 5.5-rc4 with nothing too fancy going on. Regards, Jason 1) This likely happens when wpa_supplicant runs but the card is rfkill'd: [ 15.376167] ------------[ cut here ]------------ [ 15.376180] WARNING: CPU: 9 PID: 754 at net/wireless/nl80211.c:7035 nl80211_get_reg_do+0x1c0/0x1f0 [cfg80211] [ 15.376191] CPU: 9 PID: 754 Comm: wpa_supplicant Tainted: P U W O 5.5.0-rc4+ #16 [ 15.376192] Hardware name: LENOVO 20QTCTO1WW/20QTCTO1WW, BIOS N2OET41W (1.28 ) 11/25/2019 [ 15.376199] RIP: 0010:nl80211_get_reg_do+0x1c0/0x1f0 [cfg80211] [ 15.376200] Code: 24 0c 01 00 00 00 e8 0f 04 c2 df 85 c0 0f 84 15 ff ff ff eb a6 48 89 ef 48 89 04 24 e8 c9 29 f2 df 48 8b 04 24 e9 57 ff ff ff <0f> 0b 48 89 ef e8 b6 29 f2 df b8 ea ff ff ff e9 43 ff ff ff e9 78 [ 15.376200] RSP: 0018:ffff888fc108bb30 EFLAGS: 00010202 [ 15.376201] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 15.376201] RDX: ffff888fb39c0008 RSI: 0000000000000000 RDI: ffff888fb39c0300 [ 15.376201] RBP: ffff888ff322b400 R08: 0000000000000004 R09: ffff888fb5dee014 [ 15.376202] R10: 0000000000000017 R11: ffffffffa180f570 R12: ffff888fc108bb88 [ 15.376202] R13: 0000000000000000 R14: ffff888fb5dee014 R15: ffff888fb39c0300 [ 15.376203] FS: 00007fdb93e89840(0000) GS:ffff888ffc440000(0000) knlGS:0000000000000000 [ 15.376203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.376204] CR2: 000055cfb6f62008 CR3: 0000000fbad30001 CR4: 00000000003606e0 [ 15.376204] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 15.376204] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 15.376205] Call Trace: [ 15.376208] ? _cond_resched+0x10/0x20 [ 15.376209] ? mutex_lock+0x9/0x30 [ 15.376211] genl_rcv_msg+0x183/0x3e0 [ 15.376213] ? genl_family_rcv_msg_attrs_parse+0x100/0x100 [ 15.376213] netlink_rcv_skb+0x32/0xf0 [ 15.376214] genl_rcv+0x1f/0x30 [ 15.376215] netlink_unicast+0x162/0x210 [ 15.376216] netlink_sendmsg+0x200/0x410 [ 15.376217] ? netlink_unicast+0x210/0x210 [ 15.376218] ____sys_sendmsg+0x1cb/0x1f0 [ 15.376219] ___sys_sendmsg+0x64/0x90 [ 15.376220] ? ___sys_recvmsg+0x71/0x90 [ 15.376222] ? __cgroup_bpf_run_filter_setsockopt+0x8a/0x270 [ 15.376223] __sys_sendmsg+0x44/0x80 [ 15.376224] do_syscall_64+0x3d/0x140 [ 15.376225] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 15.376226] RIP: 0033:0x7fdb94686fa7 [ 15.376227] Code: ff ff 90 48 83 ec 38 64 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 64 8b 04 25 18 00 00 00 85 c0 75 28 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 61 48 8b 4c 24 28 64 48 33 0c 25 28 00 00 00 [ 15.376227] RSP: 002b:00007ffd6d95c0c0 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.376228] RAX: ffffffffffffffda RBX: 000055cfb6ef4240 RCX: 00007fdb94686fa7 [ 15.376228] RDX: 0000000000000000 RSI: 00007ffd6d95c130 RDI: 0000000000000004 [ 15.376228] RBP: 000055cfb6ef4150 R08: 0000000000000004 R09: 000055cfb6ef0010 [ 15.376229] R10: 00007ffd6d95c204 R11: 0000000000000246 R12: 000055cfb6f40da0 [ 15.376229] R13: 00007ffd6d95c130 R14: 00007ffd6d95c204 R15: 000055cfb6f5fd20 [ 15.376230] ---[ end trace deafa665c63b9280 ]--- 2) Random crash after sending lots of data: [86366.861713] iwlwifi 0000:52:00.0: Microcode SW error detected. Restarting 0x0. [86366.861800] iwlwifi 0000:52:00.0: Start IWL Error Log Dump: [86366.861801] iwlwifi 0000:52:00.0: Status: 0x00000040, count: 6 [86366.861801] iwlwifi 0000:52:00.0: Loaded firmware version: 48.4fa0041f.0 [86366.861802] iwlwifi 0000:52:00.0: 0x00001043 | ADVANCED_SYSASSERT [86366.861802] iwlwifi 0000:52:00.0: 0x05B0A2F0 | trm_hw_status0 [86366.861803] iwlwifi 0000:52:00.0: 0x00000000 | trm_hw_status1 [86366.861803] iwlwifi 0000:52:00.0: 0x004F8E3C | branchlink2 [86366.861804] iwlwifi 0000:52:00.0: 0x00000E26 | interruptlink1 [86366.861804] iwlwifi 0000:52:00.0: 0x00000E26 | interruptlink2 [86366.861804] iwlwifi 0000:52:00.0: 0x0000273C | data1 [86366.861805] iwlwifi 0000:52:00.0: 0x00004614 | data2 [86366.861805] iwlwifi 0000:52:00.0: 0x000000E0 | data3 [86366.861806] iwlwifi 0000:52:00.0: 0x3D00F541 | beacon time [86366.861806] iwlwifi 0000:52:00.0: 0xE1F04AC4 | tsf low [86366.861807] iwlwifi 0000:52:00.0: 0x000001EA | tsf hi [86366.861807] iwlwifi 0000:52:00.0: 0x0000F4DE | time gp1 [86366.861807] iwlwifi 0000:52:00.0: 0x0E39EEB9 | time gp2 [86366.861808] iwlwifi 0000:52:00.0: 0x00000001 | uCode revision type [86366.861808] iwlwifi 0000:52:00.0: 0x00000030 | uCode version major [86366.861809] iwlwifi 0000:52:00.0: 0x4FA0041F | uCode version minor [86366.861809] iwlwifi 0000:52:00.0: 0x00000340 | hw version [86366.861809] iwlwifi 0000:52:00.0: 0x00489000 | board version [86366.861810] iwlwifi 0000:52:00.0: 0x0526001C | hcmd [86366.861810] iwlwifi 0000:52:00.0: 0xE7F23800 | isr0 [86366.861811] iwlwifi 0000:52:00.0: 0x01440000 | isr1 [86366.861811] iwlwifi 0000:52:00.0: 0x08F00112 | isr2 [86366.861811] iwlwifi 0000:52:00.0: 0x04C1FFDF | isr3 [86366.861812] iwlwifi 0000:52:00.0: 0x00000000 | isr4 [86366.861812] iwlwifi 0000:52:00.0: 0x0524001C | last cmd Id [86366.861812] iwlwifi 0000:52:00.0: 0x00016CE0 | wait_event [86366.861813] iwlwifi 0000:52:00.0: 0x000000C4 | l2p_control [86366.861813] iwlwifi 0000:52:00.0: 0x00000020 | l2p_duration [86366.861814] iwlwifi 0000:52:00.0: 0x00000007 | l2p_mhvalid [86366.861814] iwlwifi 0000:52:00.0: 0x00000081 | l2p_addr_match [86366.861814] iwlwifi 0000:52:00.0: 0x00000009 | lmpm_pmg_sel [86366.861815] iwlwifi 0000:52:00.0: 0x00000000 | timestamp [86366.861815] iwlwifi 0000:52:00.0: 0x0000B008 | flow_handler [86366.861863] iwlwifi 0000:52:00.0: Start IWL Error Log Dump: [86366.861863] iwlwifi 0000:52:00.0: Status: 0x00000040, count: 7 [86366.861864] iwlwifi 0000:52:00.0: 0x20000070 | NMI_INTERRUPT_LMAC_FATAL [86366.861864] iwlwifi 0000:52:00.0: 0x00000000 | umac branchlink1 [86366.861865] iwlwifi 0000:52:00.0: 0xC008CC3C | umac branchlink2 [86366.861865] iwlwifi 0000:52:00.0: 0x8048D0E6 | umac interruptlink1 [86366.861865] iwlwifi 0000:52:00.0: 0x8048D0E6 | umac interruptlink2 [86366.861866] iwlwifi 0000:52:00.0: 0x00000400 | umac data1 [86366.861866] iwlwifi 0000:52:00.0: 0x8048D0E6 | umac data2 [86366.861867] iwlwifi 0000:52:00.0: 0x00000000 | umac data3 [86366.861867] iwlwifi 0000:52:00.0: 0x00000030 | umac major [86366.861867] iwlwifi 0000:52:00.0: 0x4FA0041F | umac minor [86366.861868] iwlwifi 0000:52:00.0: 0x0E39EECF | frame pointer [86366.861868] iwlwifi 0000:52:00.0: 0xC0886284 | stack pointer [86366.861869] iwlwifi 0000:52:00.0: 0x00B0010C | last host cmd [86366.861869] iwlwifi 0000:52:00.0: 0x00000000 | isr status reg [86366.861883] iwlwifi 0000:52:00.0: Fseq Registers: [86366.861885] iwlwifi 0000:52:00.0: 0xE0000101 | FSEQ_ERROR_CODE [86366.861888] iwlwifi 0000:52:00.0: 0x00290008 | FSEQ_TOP_INIT_VERSION [86366.861891] iwlwifi 0000:52:00.0: 0x80050008 | FSEQ_CNVIO_INIT_VERSION [86366.861893] iwlwifi 0000:52:00.0: 0x0000A503 | FSEQ_OTP_VERSION [86366.861896] iwlwifi 0000:52:00.0: 0x80000003 | FSEQ_TOP_CONTENT_VERSION [86366.861899] iwlwifi 0000:52:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN [86366.861901] iwlwifi 0000:52:00.0: 0x00100530 | FSEQ_CNVI_ID [86366.861904] iwlwifi 0000:52:00.0: 0x00000532 | FSEQ_CNVR_ID [86366.861907] iwlwifi 0000:52:00.0: 0x00100530 | CNVI_AUX_MISC_CHIP [86366.861911] iwlwifi 0000:52:00.0: 0x00000532 | CNVR_AUX_MISC_CHIP [86366.861916] iwlwifi 0000:52:00.0: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM [86366.861921] iwlwifi 0000:52:00.0: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR [86366.862044] iwlwifi 0000:52:00.0: Collecting data: trigger 2 fired. [86366.862046] ieee80211 phy0: Hardware restart was requested [86367.520284] iwlwifi 0000:52:00.0: Applying debug destination EXTERNAL_DRAM [86367.688600] iwlwifi 0000:52:00.0: FW already configured (0) - re-configuring [86367.699198] iwlwifi 0000:52:00.0: BIOS contains WGDS but no WRDS 3) Tethering to Android 10 Pixel 3 XL eventually stops working and does the following. Only way of fixing is to unload/reload module: Dec 31 09:39:36 thinkpad kernel: wlan0: authenticate with mac-address-of-my-phone Dec 31 09:39:36 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 1/3) Dec 31 09:39:36 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:36 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:37 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 2/3) Dec 31 09:39:37 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:37 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:38 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 3/3) Dec 31 09:39:38 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:38 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:39 thinkpad kernel: wlan0: authentication with mac-address-of-my-phone timed out Dec 31 09:39:41 thinkpad wpa_supplicant[693981]: wlan0: SME: Trying to authenticate with mac-address-of-my-phone (SSID='Vand> Dec 31 09:39:41 thinkpad kernel: wlan0: authenticate with mac-address-of-my-phone Dec 31 09:39:41 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 1/3) Dec 31 09:39:42 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:42 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:42 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 2/3) Dec 31 09:39:42 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:42 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:43 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 3/3) Dec 31 09:39:43 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:43 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:44 thinkpad kernel: wlan0: authentication with mac-address-of-my-phone timed out Dec 31 09:39:46 thinkpad wpa_supplicant[693981]: wlan0: SME: Trying to authenticate with mac-address-of-my-phone (SSID='Vand> Dec 31 09:39:46 thinkpad kernel: wlan0: authenticate with mac-address-of-my-phone Dec 31 09:39:46 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 1/3) Dec 31 09:39:47 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:47 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:47 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 2/3) Dec 31 09:39:47 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:47 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:48 thinkpad kernel: wlan0: send auth to mac-address-of-my-phone (try 3/3) Dec 31 09:39:48 thinkpad kernel: iwlwifi 0000:52:00.0: No beacon heard and the time event is over already... Dec 31 09:39:48 thinkpad kernel: wlan0: Connection to AP mac-address-of-my-phone lost Dec 31 09:39:49 thinkpad kernel: wlan0: authentication with mac-address-of-my-phone timed out 4) Rebooting the system results in the wifi card not coming up. Required to shutdown fully and then start.
