IWL AC 8260, kernel 5.3.*, many kernel WARNING

[Norbert Preining]

Dear all,

(please cc)

linux 5.3.1
Debian/sid
Thinkpad X260
iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
iwlwifi 0000:04:00.0: loaded firmware version 36.8fd77bb3.0 op_mode iwlmvm

since about 5.3.0 I get a lot of warnings in the syslog about iwlmvm.

It starts with
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Microcode SW error detected.  Restarting 0x82000000.
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Start IWL Error Log Dump:
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Status: 0x00000080, count: 6
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Loaded firmware version: 36.8fd77bb3.0
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: 0x00000038 | BAD_COMMAND
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: 0x000002F0 | trm_hw_status0
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: 0x00000000 | trm_hw_status1
....

after that
Sep 27 09:08:35 burischnitzel kernel: ieee80211 phy0: Hardware restart was requested
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW Error notification: type 0x00000000 cmd_id 0x05
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW Error notification: seq 0x0030 service 0x00000005
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW Error notification: timestamp 0x000000000037F460
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: FW error in SYNC CMD GEO_TX_POWER_LIMIT
Sep 27 09:08:35 burischnitzel kernel: CPU: 0 PID: 525 Comm: kworker/0:1 Tainted: G        W  OE     5.3.1 #15
Sep 27 09:08:35 burischnitzel kernel: Hardware name: LENOVO 20F5CTO1WW/20F5CTO1WW, BIOS R02ET71W (1.44 ) 05/08/2019
Sep 27 09:08:35 burischnitzel kernel: Workqueue: events iwl_mvm_async_handlers_wk [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel: Call Trace:
Sep 27 09:08:35 burischnitzel kernel:  dump_stack+0x46/0x60
Sep 27 09:08:35 burischnitzel kernel:  iwl_trans_pcie_send_hcmd+0x46e/0x490 [iwlwifi]
Sep 27 09:08:35 burischnitzel kernel:  ? wait_woken+0x70/0x70
Sep 27 09:08:35 burischnitzel kernel:  iwl_trans_send_cmd+0x57/0xb0 [iwlwifi]
Sep 27 09:08:35 burischnitzel kernel:  iwl_mvm_send_cmd+0x23/0x80 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel:  iwl_mvm_get_sar_geo_profile+0xae/0x130 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel:  ? iwl_mvm_get_regdomain+0x7f/0xc0 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel:  iwl_mvm_rx_chub_update_mcc+0xcd/0x110 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel:  iwl_mvm_async_handlers_wk+0xaa/0x140 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel:  process_one_work+0x1cf/0x370
Sep 27 09:08:35 burischnitzel kernel:  worker_thread+0x4a/0x3c0
Sep 27 09:08:35 burischnitzel kernel:  ? process_one_work+0x370/0x370
Sep 27 09:08:35 burischnitzel kernel:  kthread+0x118/0x130
Sep 27 09:08:35 burischnitzel kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Sep 27 09:08:35 burischnitzel kernel:  ret_from_fork+0x35/0x40
Sep 27 09:08:35 burischnitzel kernel: iwlwifi 0000:04:00.0: Failed to get geographic profile info -5
Sep 27 09:08:35 burischnitzel kernel: ------------[ cut here ]------------
Sep 27 09:08:35 burischnitzel kernel: WARNING: CPU: 0 PID: 525 at iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel: Modules linked in: xt_MASQUERADE(E) nf_conntrack_netlink(E) xfrm_user(E) xfrm_algo(E) xt>
Sep 27 09:08:35 burischnitzel kernel:  libarc4(E) snd_hda_intel(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) iwlwifi(E) core>
Sep 27 09:08:35 burischnitzel kernel:  rtsx_pci_sdmmc(E) aes_x86_64(E) crypto_simd(E) mmc_core(E) cryptd(E) glue_helper(E) scs>
Sep 27 09:08:35 burischnitzel kernel: CPU: 0 PID: 525 Comm: kworker/0:1 Tainted: G        W  OE     5.3.1 #15
Sep 27 09:08:35 burischnitzel kernel: Hardware name: LENOVO 20F5CTO1WW/20F5CTO1WW, BIOS R02ET71W (1.44 ) 05/08/2019
Sep 27 09:08:35 burischnitzel kernel: Workqueue: events iwl_mvm_async_handlers_wk [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel: RIP: 0010:iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel: Code: 48 c7 c7 68 8e d8 c0 e8 8a c3 74 d2 0f 0b 49 8b 47 10 44 8b a0 9c 00 00 00 e9 d2 0>
Sep 27 09:08:35 burischnitzel kernel: RSP: 0018:ffff9f524343fdf8 EFLAGS: 00010246
Sep 27 09:08:35 burischnitzel kernel: RAX: 0000000000000024 RBX: ffff8cea7f44b040 RCX: 0000000000000006
Sep 27 09:08:35 burischnitzel kernel: RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff8ced12216450
Sep 27 09:08:35 burischnitzel kernel: RBP: ffff8cecf7d81e38 R08: ffff9f524343fcad R09: 00000000000006fe
Sep 27 09:08:35 burischnitzel kernel: R10: 0000000000000008 R11: ffff9f524343fcad R12: ffff8cecf7d81e08
Sep 27 09:08:35 burischnitzel kernel: R13: ffff8cecf7d81e08 R14: ffff8cea72eb0540 R15: dead000000000100
Sep 27 09:08:35 burischnitzel kernel: FS:  0000000000000000(0000) GS:ffff8ced12200000(0000) knlGS:0000000000000000
Sep 27 09:08:35 burischnitzel kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Sep 27 09:08:35 burischnitzel kernel: CR2: 000034b8490c9000 CR3: 000000035980a004 CR4: 00000000003606f0
Sep 27 09:08:35 burischnitzel kernel: Call Trace:
Sep 27 09:08:35 burischnitzel kernel:  iwl_mvm_async_handlers_wk+0xaa/0x140 [iwlmvm]
Sep 27 09:08:35 burischnitzel kernel:  process_one_work+0x1cf/0x370
Sep 27 09:08:35 burischnitzel kernel:  worker_thread+0x4a/0x3c0
Sep 27 09:08:35 burischnitzel kernel:  ? process_one_work+0x370/0x370
Sep 27 09:08:35 burischnitzel kernel:  kthread+0x118/0x130
Sep 27 09:08:35 burischnitzel kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Sep 27 09:08:35 burischnitzel kernel:  ret_from_fork+0x35/0x40
Sep 27 09:08:35 burischnitzel kernel: ---[ end trace 544d5d5df075debd ]---


This repeats a few times (2-4) and then it settles down.

WIFI works without any problems, though.

Best

Norbert

--
PREINING Norbert                               http://www.preining.info
Accelia Inc. + IFMGA ProGuide + TU Wien + JAIST + TeX Live + Debian Dev
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