Public bug reported:

The GUI randomly freezes around every 10-15 minutes. This last for about
15-20 seconds before it gets back to normal.

It started a few weeks ago. I can see entries in dmesg when this happens
that make me suspect that it is caused by iwlwifi and/or a related
driver of the Intel Wireless-AC 9260.


[ 2313.312937] ------------[ cut here ]------------
[ 2313.312941] Timeout waiting for hardware access (CSR_GP_CNTRL 0x0c04000c)
[ 2313.312995] WARNING: CPU: 4 PID: 1424 at 
drivers/net/wireless/intel/iwlwifi/pcie/trans.c:2066 
iwl_trans_pcie_grab_nic_access+0x1f9/0x230 [iwlwifi]
[ 2313.312996] Modules linked in: ccm rfcomm xfrm_user xfrm_algo cmac 
algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_hda_codec_hdmi 
snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda 
snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core 
snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek 
snd_compress snd_hda_codec_generic ac97_bus ledtrig_audio snd_pcm_dmaengine 
snd_hda_intel iwlmvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep 
mac80211 snd_pcm snd_seq_midi mei_hdcp libarc4 intel_rapl_msr 
snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel 
kvm uvcvideo snd_seq intel_cstate iwlwifi intel_rapl_perf videobuf2_vmalloc 
btusb btrtl videobuf2_memops snd_seq_device btbcm snd_timer videobuf2_v4l2 
joydev btintel serio_raw bluetooth ucsi_ccg wmi_bmof videobuf2_common 
rtsx_pci_ms videodev snd typec_ucsi cfg80211 mc input_leds mxm_wmi mei_me 
memstick typec ecdh_generic mei soundcore ecc
[ 2313.313022]  processor_thermal_device intel_rapl_common intel_soc_dts_iosf 
intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal 
intel_hid mac_hid acpi_thermal_rel sparse_keymap acpi_pad nvidia_uvm(OE) 
nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common 
ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_addrtype xt_tcpudp sch_fq_codel 
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c 
ip6table_filter coretemp parport_pc ip6_tables iptable_filter ppdev bpfilter lp 
parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) 
zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_apple hid_generic usbhid hid 
nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel i915 i2c_algo_bit rtsx_pci_sdmmc aesni_intel drm_kms_helper 
crypto_simd syscopyarea sysfillrect cryptd uas sysimgblt glue_helper 
fb_sys_fops psmouse intel_lpss_pci rtsx_pci r8169 intel_lpss drm i2c_i801 ahci 
ipmi_devintf usb_storage
[ 2313.313053]  realtek idma64 libahci virt_dma ipmi_msghandler i2c_nvidia_gpu 
pinctrl_cannonlake wmi video pinctrl_intel
[ 2313.313059] CPU: 4 PID: 1424 Comm: irq/149-iwlwifi Tainted: P           OE   
  5.4.0-39-generic #43-Ubuntu
[ 2313.313060] Hardware name: TUXEDO TUXEDO/P95_96_97Ex,Rx, BIOS 1.07.13RTR2 
10/16/2019
[ 2313.313068] RIP: 0010:iwl_trans_pcie_grab_nic_access+0x1f9/0x230 [iwlwifi]
[ 2313.313070] Code: e5 fb 49 8d 57 08 bf 00 20 00 00 e8 a1 f1 6c fa e9 30 ff 
ff ff 89 c6 48 c7 c7 30 91 61 c2 c6 05 15 e2 02 00 01 e8 02 f7 6a fa <0f> 0b e9 
eb fe ff ff 49 8b 7c 24 38 48 c7 c1 98 91 61 c2 31 d2 31
[ 2313.313071] RSP: 0018:ffffbe8e67d4fc98 EFLAGS: 00010082
[ 2313.313073] RAX: 0000000000000000 RBX: ffffbe8e67d4fcd0 RCX: 0000000000000006
[ 2313.313073] RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff96d9903178c0
[ 2313.313074] RBP: ffffbe8e67d4fcc0 R08: 00000000000004bb R09: 0000000000000004
[ 2313.313075] R10: 0000000000000000 R11: 0000000000000001 R12: ffff96d95de38018
[ 2313.313076] R13: 0000000000000000 R14: ffff96d95de39e4c R15: 000000000c04000c
[ 2313.313077] FS:  0000000000000000(0000) GS:ffff96d990300000(0000) 
knlGS:0000000000000000
[ 2313.313078] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2313.313079] CR2: 00002d587263b000 CR3: 0000000387a0a006 CR4: 00000000003606e0
[ 2313.313080] Call Trace:
[ 2313.313089]  iwl_trans_pcie_read_mem+0x42/0xc0 [iwlwifi]
[ 2313.313099]  iwl_mvm_dump_lmac_error_log+0xdd/0x570 [iwlmvm]
[ 2313.313103]  ? __dev_printk+0x5c/0x6f
[ 2313.313106]  ? _dev_err+0x6c/0x83
[ 2313.313110]  ? stop_one_cpu+0x73/0xa0
[ 2313.313118]  iwl_mvm_dump_nic_error_log+0x20/0x70 [iwlmvm]
[ 2313.313124]  iwl_mvm_nic_error+0x35/0x40 [iwlmvm]
[ 2313.313130]  iwl_pcie_irq_handle_error+0xb3/0x110 [iwlwifi]
[ 2313.313136]  iwl_pcie_irq_msix_handler+0x180/0x4a0 [iwlwifi]
[ 2313.313140]  ? irq_finalize_oneshot.part.0+0xf0/0xf0
[ 2313.313142]  irq_thread_fn+0x28/0x60
[ 2313.313144]  irq_thread+0xda/0x170
[ 2313.313147]  ? irq_forced_thread_fn+0x80/0x80
[ 2313.313149]  kthread+0x104/0x140
[ 2313.313151]  ? irq_thread_check_affinity+0xf0/0xf0
[ 2313.313153]  ? kthread_park+0x90/0x90
[ 2313.313156]  ret_from_fork+0x35/0x40
[ 2313.313158] ---[ end trace 4d942559ef593ab6 ]---
[ 2313.313161] iwlwifi 0000:08:00.0: iwlwifi transaction failed, dumping 
registers
[ 2313.313164] iwlwifi 0000:08:00.0: iwlwifi device config registers:
[ 2313.313335] iwlwifi 0000:08:00.0: 00000000: 25268086 00100406 02800029 
00000010 b4500004 00000000 00000000 00000000
[ 2313.313337] iwlwifi 0000:08:00.0: 00000020: 00000000 00000000 00000000 
00148086 00000000 000000c8 00000000 000001ff
[ 2313.313339] iwlwifi 0000:08:00.0: 00000040: 00028010 10008ec0 00100c10 
0045e812 10120142 00000000 00000000 00000000
[ 2313.313342] iwlwifi 0000:08:00.0: 00000060: 00000000 00080812 00000405 
00000000 00000002 00000000 00000000 00000000
[ 2313.313344] iwlwifi 0000:08:00.0: 00000080: 800f0011 00002000 00003000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313345] iwlwifi 0000:08:00.0: 000000a0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313348] iwlwifi 0000:08:00.0: 000000c0: 00000000 00000000 c823d001 
0d000008 00804005 00000000 00000000 00000000
[ 2313.313350] iwlwifi 0000:08:00.0: 000000e0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313352] iwlwifi 0000:08:00.0: 00000100: 14c10001 00000000 00000000 
00462031 00000000 00002000 00000000 00000000
[ 2313.313354] iwlwifi 0000:08:00.0: 00000120: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313356] iwlwifi 0000:08:00.0: 00000140: 14c00000 ff000000 000000ff 
15410018 10031003 0001001e 00481e1f 40500000
[ 2313.313357] iwlwifi 0000:08:00.0: iwlwifi device memory mapped registers:
[ 2313.313401] iwlwifi 0000:08:00.0: 00000000: 00c89004 00000040 00000000 
00000000 00000000 00000000 00027e1f 00000000
[ 2313.313403] iwlwifi 0000:08:00.0: 00000020: 00000010 0c04000c 00000321 
d55555d5 d55555d5 d55555d5 80008040 041f0042
[ 2313.313414] iwlwifi 0000:08:00.0: iwlwifi device AER capability structure:
[ 2313.313435] iwlwifi 0000:08:00.0: 00000000: 14c10001 00000000 00000000 
00462031 00000000 00002000 00000000 00000000
[ 2313.313436] iwlwifi 0000:08:00.0: 00000020: 00000000 00000000 00000000
[ 2313.313438] iwlwifi 0000:08:00.0: iwlwifi parent port (0000:00:1d.5) config 
registers:
[ 2313.313540] iwlwifi 0000:00:1d.5: 00000000: a3358086 00100407 060400f0 
00810010 00000000 00000000 00080800 200000f0
[ 2313.313543] iwlwifi 0000:00:1d.5: 00000020: b450b450 0001fff1 00000000 
00000000 00000000 00000040 00000000 000202ff
[ 2313.313545] iwlwifi 0000:00:1d.5: 00000040: 01428010 00008001 0010000f 
0e724813 70120042 006cb200 01400000 00000008
[ 2313.313547] iwlwifi 0000:00:1d.5: 00000060: 00000000 00000837 00000400 
0000000e 00000003 00000000 00000000 00000000
[ 2313.313549] iwlwifi 0000:00:1d.5: 00000080: 00019005 fee00298 00000000 
00000000 0000a00d 95e61558 00000000 00000000
[ 2313.313551] iwlwifi 0000:00:1d.5: 000000a0: c8030001 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313553] iwlwifi 0000:00:1d.5: 000000c0: 00000000 00000000 00000000 
00000000 07001001 00021842 099e0008 00000000
[ 2313.313556] iwlwifi 0000:00:1d.5: 000000e0: 00630300 8c548c54 00100016 
00000000 00000150 4c000000 01120fb5 82000000
[ 2313.313558] iwlwifi 0000:00:1d.5: 00000100: 14010001 00000000 00010000 
00060011 00000000 00002000 00000000 00000000
[ 2313.313560] iwlwifi 0000:00:1d.5: 00000120: 00000000 00000000 00000000 
00000007 00000000 00000000 00000000 00000000
[ 2313.313562] iwlwifi 0000:00:1d.5: 00000140: 1501000d 0000000f 00000000 
00000000 2201001f 00000406 00000003 00000000
[ 2313.313564] iwlwifi 0000:00:1d.5: 00000160: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313566] iwlwifi 0000:00:1d.5: 00000180: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313567] iwlwifi 0000:00:1d.5: 000001a0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313569] iwlwifi 0000:00:1d.5: 000001c0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313571] iwlwifi 0000:00:1d.5: 000001e0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
[ 2313.313573] iwlwifi 0000:00:1d.5: 00000200: 00000000 00b02800 00000000
[ 2313.313582] iwlwifi 0000:08:00.0: iwlwifi root port (0000:00:1d.5) AER cap 
structure:
[ 2313.313593] iwlwifi 0000:00:1d.5: 00000000: 14010001 00000000 00010000 
00060011 00000000 00002000 00000000 00000000
[ 2313.313594] iwlwifi 0000:00:1d.5: 00000020: 00000000 00000000 00000000 
00000007 00000000 00000000
[ 2313.313647] ------------[ cut here ]------------
[ 2313.313661] WARNING: CPU: 4 PID: 1424 at 
drivers/net/wireless/intel/iwlwifi/mvm/../iwl-trans.h:1180 
iwl_mvm_dump_lmac_error_log+0x51d/0x570 [iwlmvm]
[ 2313.313663] Modules linked in: ccm rfcomm xfrm_user xfrm_algo cmac 
algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_hda_codec_hdmi 
snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda 
snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core 
snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek 
snd_compress snd_hda_codec_generic ac97_bus ledtrig_audio snd_pcm_dmaengine 
snd_hda_intel iwlmvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep 
mac80211 snd_pcm snd_seq_midi mei_hdcp libarc4 intel_rapl_msr 
snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel 
kvm uvcvideo snd_seq intel_cstate iwlwifi intel_rapl_perf videobuf2_vmalloc 
btusb btrtl videobuf2_memops snd_seq_device btbcm snd_timer videobuf2_v4l2 
joydev btintel serio_raw bluetooth ucsi_ccg wmi_bmof videobuf2_common 
rtsx_pci_ms videodev snd typec_ucsi cfg80211 mc input_leds mxm_wmi mei_me 
memstick typec ecdh_generic mei soundcore ecc
[ 2313.313746]  processor_thermal_device intel_rapl_common intel_soc_dts_iosf 
intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal 
intel_hid mac_hid acpi_thermal_rel sparse_keymap acpi_pad nvidia_uvm(OE) 
nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common 
ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_addrtype xt_tcpudp sch_fq_codel 
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c 
ip6table_filter coretemp parport_pc ip6_tables iptable_filter ppdev bpfilter lp 
parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) 
zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_apple hid_generic usbhid hid 
nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel i915 i2c_algo_bit rtsx_pci_sdmmc aesni_intel drm_kms_helper 
crypto_simd syscopyarea sysfillrect cryptd uas sysimgblt glue_helper 
fb_sys_fops psmouse intel_lpss_pci rtsx_pci r8169 intel_lpss drm i2c_i801 ahci 
ipmi_devintf usb_storage
[ 2313.313768]  realtek idma64 libahci virt_dma ipmi_msghandler i2c_nvidia_gpu 
pinctrl_cannonlake wmi video pinctrl_intel
[ 2313.313775] CPU: 4 PID: 1424 Comm: irq/149-iwlwifi Tainted: P        W  OE   
  5.4.0-39-generic #43-Ubuntu
[ 2313.313776] Hardware name: TUXEDO TUXEDO/P95_96_97Ex,Rx, BIOS 1.07.13RTR2 
10/16/2019
[ 2313.313785] RIP: 0010:iwl_mvm_dump_lmac_error_log+0x51d/0x570 [iwlmvm]
[ 2313.313787] Code: eb ff 44 8b 45 d4 48 8b 3b 31 d2 48 c7 c1 e1 d8 75 c2 31 
f6 e8 04 a6 eb ff e9 67 fb ff ff 49 c7 c1 7d d4 75 c2 e9 bb fc ff ff <0f> 0b 49 
8b 7c 24 38 48 c7 c1 90 18 76 c2 31 d2 31 f6 e8 dc a5 eb
[ 2313.313788] RSP: 0018:ffffbe8e67d4fd10 EFLAGS: 00010286
[ 2313.313790] RAX: 00000000fffffff0 RBX: ffff96d9576d1e48 RCX: 0000000000000000
[ 2313.313792] RDX: 0000000000000002 RSI: 0000000000000246 RDI: 0000000000000246
[ 2313.313793] RBP: ffffbe8e67d4fdd0 R08: 0000000000000507 R09: ffffffffbe7b0704
[ 2313.313795] R10: ffffffffbe7941a8 R11: ffffbe8e67d4f9d0 R12: ffff96d95de38018
[ 2313.313796] R13: 0000000000813b44 R14: 0000000000000000 R15: ffff96d95de39ef0
[ 2313.313798] FS:  0000000000000000(0000) GS:ffff96d990300000(0000) 
knlGS:0000000000000000
[ 2313.313799] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2313.313801] CR2: 00002d587263b000 CR3: 0000000387a0a006 CR4: 00000000003606e0
[ 2313.313802] Call Trace:
[ 2313.313806]  ? __dev_printk+0x5c/0x6f
[ 2313.313808]  ? _dev_err+0x6c/0x83
[ 2313.313813]  ? stop_one_cpu+0x73/0xa0
[ 2313.313823]  iwl_mvm_dump_nic_error_log+0x20/0x70 [iwlmvm]
[ 2313.313830]  iwl_mvm_nic_error+0x35/0x40 [iwlmvm]
[ 2313.313841]  iwl_pcie_irq_handle_error+0xb3/0x110 [iwlwifi]
[ 2313.313849]  iwl_pcie_irq_msix_handler+0x180/0x4a0 [iwlwifi]
[ 2313.313856]  ? irq_finalize_oneshot.part.0+0xf0/0xf0
[ 2313.313861]  irq_thread_fn+0x28/0x60
[ 2313.313865]  irq_thread+0xda/0x170
[ 2313.313869]  ? irq_forced_thread_fn+0x80/0x80
[ 2313.313874]  kthread+0x104/0x140
[ 2313.313878]  ? irq_thread_check_affinity+0xf0/0xf0
[ 2313.313881]  ? kthread_park+0x90/0x90
[ 2313.313886]  ret_from_fork+0x35/0x40
[ 2313.313891] ---[ end trace 4d942559ef593ab7 ]---
[ 2313.313895] iwlwifi 0000:08:00.0: HW error, resetting before reading
[ 2313.320878] iwlwifi 0000:08:00.0: Start IWL Error Log Dump:
[ 2313.320880] iwlwifi 0000:08:00.0: Status: 0x00000040, count: 994349763
[ 2313.320882] iwlwifi 0000:08:00.0: Loaded firmware version: 46.6bf1df06.0
[ 2313.320884] iwlwifi 0000:08:00.0: 0x7FEF57BF | ADVANCED_SYSASSERT
[ 2313.320885] iwlwifi 0000:08:00.0: 0x430D67A4 | trm_hw_status0
[ 2313.320886] iwlwifi 0000:08:00.0: 0xB73B3A03 | trm_hw_status1
[ 2313.320887] iwlwifi 0000:08:00.0: 0x514FE389 | branchlink2
[ 2313.320888] iwlwifi 0000:08:00.0: 0xF788EFED | interruptlink1
[ 2313.320889] iwlwifi 0000:08:00.0: 0x6A12169B | interruptlink2
[ 2313.320890] iwlwifi 0000:08:00.0: 0xED77E0BF | data1
[ 2313.320891] iwlwifi 0000:08:00.0: 0x0A551906 | data2
[ 2313.320892] iwlwifi 0000:08:00.0: 0xF7224DB7 | data3
[ 2313.320893] iwlwifi 0000:08:00.0: 0xA260520C | beacon time
[ 2313.320893] iwlwifi 0000:08:00.0: 0xC6DF3EFB | tsf low
[ 2313.320894] iwlwifi 0000:08:00.0: 0x6A0774B8 | tsf hi
[ 2313.320895] iwlwifi 0000:08:00.0: 0x19FB8975 | time gp1
[ 2313.320897] iwlwifi 0000:08:00.0: 0x00787160 | time gp2
[ 2313.320898] iwlwifi 0000:08:00.0: 0x63B1FFBE | uCode revision type
[ 2313.320900] iwlwifi 0000:08:00.0: 0x050B9C79 | uCode version major
[ 2313.320901] iwlwifi 0000:08:00.0: 0xF1F5AF1A | uCode version minor
[ 2313.320902] iwlwifi 0000:08:00.0: 0xF48B16B7 | hw version
[ 2313.320903] iwlwifi 0000:08:00.0: 0x5FCDF7DF | board version
[ 2313.320904] iwlwifi 0000:08:00.0: 0xFF7EF764 | hcmd
[ 2313.320905] iwlwifi 0000:08:00.0: 0x69240F92 | isr0
[ 2313.320906] iwlwifi 0000:08:00.0: 0x6FF772DF | isr1
[ 2313.320907] iwlwifi 0000:08:00.0: 0x29F158B6 | isr2
[ 2313.320907] iwlwifi 0000:08:00.0: 0xFF7FB8ED | isr3
[ 2313.320908] iwlwifi 0000:08:00.0: 0xE12360A5 | isr4
[ 2313.320909] iwlwifi 0000:08:00.0: 0x7F5F474C | last cmd Id
[ 2313.320910] iwlwifi 0000:08:00.0: 0xE0255CC3 | wait_event
[ 2313.320911] iwlwifi 0000:08:00.0: 0xDDBBEBCF | l2p_control
[ 2313.320912] iwlwifi 0000:08:00.0: 0xB038AD3A | l2p_duration
[ 2313.320913] iwlwifi 0000:08:00.0: 0x637FA97E | l2p_mhvalid
[ 2313.320914] iwlwifi 0000:08:00.0: 0xA4083502 | l2p_addr_match
[ 2313.320915] iwlwifi 0000:08:00.0: 0xF6CFBCCA | lmpm_pmg_sel
[ 2313.320916] iwlwifi 0000:08:00.0: 0x172A8918 | timestamp
[ 2313.320917] iwlwifi 0000:08:00.0: 0xF97EBF9D | flow_handler
[ 2313.320968] iwlwifi 0000:08:00.0: Start IWL Error Log Dump:
[ 2313.320969] iwlwifi 0000:08:00.0: Status: 0x00000040, count: -184168469
[ 2313.320971] iwlwifi 0000:08:00.0: 0x497701CE | ADVANCED_SYSASSERT
[ 2313.320972] iwlwifi 0000:08:00.0: 0xEFE6F7BD | umac branchlink1
[ 2313.320972] iwlwifi 0000:08:00.0: 0x68900B28 | umac branchlink2
[ 2313.320973] iwlwifi 0000:08:00.0: 0xEDDFFAAA | umac interruptlink1
[ 2313.320974] iwlwifi 0000:08:00.0: 0x5F1E8884 | umac interruptlink2
[ 2313.320975] iwlwifi 0000:08:00.0: 0xF973AE77 | umac data1
[ 2313.320976] iwlwifi 0000:08:00.0: 0x1CFAC4EC | umac data2
[ 2313.320977] iwlwifi 0000:08:00.0: 0x4FD9F44D | umac data3
[ 2313.320978] iwlwifi 0000:08:00.0: 0x8B05A711 | umac major
[ 2313.320979] iwlwifi 0000:08:00.0: 0xFBDAEF3C | umac minor
[ 2313.320980] iwlwifi 0000:08:00.0: 0xA2D50223 | frame pointer
[ 2313.320981] iwlwifi 0000:08:00.0: 0xF3594FAF | stack pointer
[ 2313.320982] iwlwifi 0000:08:00.0: 0xCA7A1060 | last host cmd
[ 2313.320983] iwlwifi 0000:08:00.0: 0xFBDCD7E7 | isr status reg
[ 2313.321007] iwlwifi 0000:08:00.0: Fseq Registers:
[ 2313.321076] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_ERROR_CODE
[ 2313.321210] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_TOP_INIT_VERSION
[ 2313.321345] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVIO_INIT_VERSION
[ 2313.321480] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_OTP_VERSION
[ 2313.321615] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_TOP_CONTENT_VERSION
[ 2313.321750] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_ALIVE_TOKEN
[ 2313.321884] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVI_ID
[ 2313.322019] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVR_ID
[ 2313.322153] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | CNVI_AUX_MISC_CHIP
[ 2313.322287] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | CNVR_AUX_MISC_CHIP
[ 2313.322422] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | 
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 2313.322556] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | 
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 2313.322569] iwlwifi 0000:08:00.0: Collecting data: trigger 2 fired.
[ 2313.322572] ieee80211 phy0: Hardware restart was requested
[ 2329.809820] clocksource: timekeeping watchdog on CPU11: Marking clocksource 
'tsc' as unstable because the skew is too large:
[ 2329.809821] clocksource:                       'acpi_pm' wd_now: e7f8e8 
wd_last: 2ede51 mask: ffffff
[ 2329.809822] clocksource:                       'tsc' cs_now: 588d956b74a 
cs_last: 583f9a512ec mask: ffffffffffffffff
[ 2329.809823] tsc: Marking TSC unstable due to clocksource watchdog
[ 2329.809860] TSC found unstable after boot, most likely due to broken BIOS. 
Use 'tsc=unstable'.
[ 2329.809861] sched_clock: Marking unstable (2329929418918, 
-119780068)<-(2329844474408, -34614916)
[ 2341.907311] watchdog: BUG: soft lockup - CPU#4 stuck for 23s! 
[kworker/4:1:79325]
[ 2341.907313] Modules linked in: ccm rfcomm xfrm_user xfrm_algo cmac 
algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_hda_codec_hdmi 
snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda 
snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core 
snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek 
snd_compress snd_hda_codec_generic ac97_bus ledtrig_audio snd_pcm_dmaengine 
snd_hda_intel iwlmvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep 
mac80211 snd_pcm snd_seq_midi mei_hdcp libarc4 intel_rapl_msr 
snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel 
kvm uvcvideo snd_seq intel_cstate iwlwifi intel_rapl_perf videobuf2_vmalloc 
btusb btrtl videobuf2_memops snd_seq_device btbcm snd_timer videobuf2_v4l2 
joydev btintel serio_raw bluetooth ucsi_ccg wmi_bmof videobuf2_common 
rtsx_pci_ms videodev snd typec_ucsi cfg80211 mc input_leds mxm_wmi mei_me 
memstick typec ecdh_generic mei soundcore ecc
[ 2341.907334]  processor_thermal_device intel_rapl_common intel_soc_dts_iosf 
intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal 
intel_hid mac_hid acpi_thermal_rel sparse_keymap acpi_pad nvidia_uvm(OE) 
nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common 
ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_addrtype xt_tcpudp sch_fq_codel 
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c 
ip6table_filter coretemp parport_pc ip6_tables iptable_filter ppdev bpfilter lp 
parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) 
zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_apple hid_generic usbhid hid 
nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel i915 i2c_algo_bit rtsx_pci_sdmmc aesni_intel drm_kms_helper 
crypto_simd syscopyarea sysfillrect cryptd uas sysimgblt glue_helper 
fb_sys_fops psmouse intel_lpss_pci rtsx_pci r8169 intel_lpss drm i2c_i801 ahci 
ipmi_devintf usb_storage
[ 2341.907356]  realtek idma64 libahci virt_dma ipmi_msghandler i2c_nvidia_gpu 
pinctrl_cannonlake wmi video pinctrl_intel
[ 2341.907360] CPU: 4 PID: 79325 Comm: kworker/4:1 Tainted: P        W  OE     
5.4.0-39-generic #43-Ubuntu
[ 2341.907360] Hardware name: TUXEDO TUXEDO/P95_96_97Ex,Rx, BIOS 1.07.13RTR2 
10/16/2019
[ 2341.907370] Workqueue: events iwl_fw_error_dump_wk [iwlwifi]
[ 2341.907373] RIP: 0010:_raw_spin_unlock_irqrestore+0x15/0x20
[ 2341.907375] Code: ff 7f 5b 44 89 f0 41 5c 41 5d 41 5e 41 5f 5d c3 90 90 90 
90 90 0f 1f 44 00 00 55 48 89 e5 c6 07 00 0f 1f 40 00 48 89 f7 57 9d <0f> 1f 44 
00 00 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 49 89 f8 b8 00
[ 2341.907375] RSP: 0018:ffffbe8e47db7cc0 EFLAGS: 00000246 ORIG_RAX: 
ffffffffffffff13
[ 2341.907376] RAX: ffffffffc25ef560 RBX: ffff96d95de38018 RCX: 0000000000000003
[ 2341.907376] RDX: 0000000008040005 RSI: 0000000000000246 RDI: 0000000000000246
[ 2341.907377] RBP: ffffbe8e47db7cc0 R08: 0000000000003a98 R09: 0000000000000011
[ 2341.907377] R10: ffffef4f8f5cae48 R11: 00000000000001bf R12: 00000000fffffff7
[ 2341.907378] R13: ffffbe8e47db7cf8 R14: 0000000000400000 R15: ffff96d9576d2cd8
[ 2341.907379] FS:  0000000000000000(0000) GS:ffff96d990300000(0000) 
knlGS:0000000000000000
[ 2341.907379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2341.907380] CR2: 00002d587263b000 CR3: 0000000387a0a006 CR4: 00000000003606e0
[ 2341.907380] Call Trace:
[ 2341.907387]  iwl_trans_pcie_release_nic_access+0x61/0x70 [iwlwifi]
[ 2341.907391]  iwl_trans_pcie_read_mem+0x94/0xc0 [iwlwifi]
[ 2341.907396]  iwl_fw_dump_mem.isra.0.part.0+0x50/0x90 [iwlwifi]
[ 2341.907400]  iwl_fw_error_dump_file.isra.0+0x438/0xfe0 [iwlwifi]
[ 2341.907404]  iwl_fw_dbg_collect_sync+0xe7/0x310 [iwlwifi]
[ 2341.907405]  ? __switch_to_asm+0x40/0x70
[ 2341.907406]  ? __switch_to_asm+0x34/0x70
[ 2341.907410]  iwl_fw_error_dump_wk+0x59/0x80 [iwlwifi]
[ 2341.907412]  process_one_work+0x1eb/0x3b0
[ 2341.907413]  worker_thread+0x4d/0x400
[ 2341.907414]  kthread+0x104/0x140
[ 2341.907415]  ? process_one_work+0x3b0/0x3b0
[ 2341.907416]  ? kthread_park+0x90/0x90
[ 2341.907417]  ret_from_fork+0x35/0x40
[ 2342.291655] clocksource: Switched to clocksource acpi_pm
[ 2342.376509] iwlwifi 0000:08:00.0: Failing on timeout while stopping DMA 
channel 8 [0xa5a5a5a2]
[ 2342.435237] iwlwifi 0000:08:00.0: Applying debug destination EXTERNAL_DRAM
[ 2342.548864] iwlwifi 0000:08:00.0: Applying debug destination EXTERNAL_DRAM
[ 2342.613291] iwlwifi 0000:08:00.0: FW already configured (0) - re-configuring
[ 2342.627970] iwlwifi 0000:08:00.0: BIOS contains WGDS but no WRDS

1) $ lsb_release -rd
Description:    Ubuntu 20.04 LTS
Release:        20.04

2) I am not sure what package is in use but I can point to the firmware
used by the adapter:

# ls /lib/firmware/iwlwifi-9260-th-b0-jf-b0-*
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-33.ucode
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-34.ucode
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-38.ucode
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-41.ucode
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-43.ucode
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-46.ucode

3) What you expected to happen

The interface not to freeze.

4) What happened instead

The interface freezes sometimes leaving the last key pressed stucked. If
it the key was delete it will have deleted all the text when it
unfreezes.

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Attachment added: "syslog"
   https://bugs.launchpad.net/bugs/1885266/+attachment/5387363/+files/syslog

** Description changed:

- Randomly around every 10-15 minutes.
+ The GUI randomly freezes around every 10-15 minutes. This last for about
+ 15-20 seconds before it gets back to normal.
  
  It started a few weeks ago. I can see entries in dmesg when this happens
  that make me suspect that it is caused by iwlwifi and/or a related
  driver of the Intel Wireless-AC 9260.
+ 
  
  [ 2313.312937] ------------[ cut here ]------------
  [ 2313.312941] Timeout waiting for hardware access (CSR_GP_CNTRL 0x0c04000c)
  [ 2313.312995] WARNING: CPU: 4 PID: 1424 at 
drivers/net/wireless/intel/iwlwifi/pcie/trans.c:2066 
iwl_trans_pcie_grab_nic_access+0x1f9/0x230 [iwlwifi]
  [ 2313.312996] Modules linked in: ccm rfcomm xfrm_user xfrm_algo cmac 
algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_hda_codec_hdmi 
snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda 
snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core 
snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek 
snd_compress snd_hda_codec_generic ac97_bus ledtrig_audio snd_pcm_dmaengine 
snd_hda_intel iwlmvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep 
mac80211 snd_pcm snd_seq_midi mei_hdcp libarc4 intel_rapl_msr 
snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel 
kvm uvcvideo snd_seq intel_cstate iwlwifi intel_rapl_perf videobuf2_vmalloc 
btusb btrtl videobuf2_memops snd_seq_device btbcm snd_timer videobuf2_v4l2 
joydev btintel serio_raw bluetooth ucsi_ccg wmi_bmof videobuf2_common 
rtsx_pci_ms videodev snd typec_ucsi cfg80211 mc input_leds mxm_wmi mei_me 
memstick typec ecdh_generic mei soundcore ecc
  [ 2313.313022]  processor_thermal_device intel_rapl_common intel_soc_dts_iosf 
intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal 
intel_hid mac_hid acpi_thermal_rel sparse_keymap acpi_pad nvidia_uvm(OE) 
nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common 
ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_addrtype xt_tcpudp sch_fq_codel 
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c 
ip6table_filter coretemp parport_pc ip6_tables iptable_filter ppdev bpfilter lp 
parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) 
zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_apple hid_generic usbhid hid 
nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel i915 i2c_algo_bit rtsx_pci_sdmmc aesni_intel drm_kms_helper 
crypto_simd syscopyarea sysfillrect cryptd uas sysimgblt glue_helper 
fb_sys_fops psmouse intel_lpss_pci rtsx_pci r8169 intel_lpss drm i2c_i801 ahci 
ipmi_devintf usb_storage
  [ 2313.313053]  realtek idma64 libahci virt_dma ipmi_msghandler 
i2c_nvidia_gpu pinctrl_cannonlake wmi video pinctrl_intel
  [ 2313.313059] CPU: 4 PID: 1424 Comm: irq/149-iwlwifi Tainted: P           OE 
    5.4.0-39-generic #43-Ubuntu
  [ 2313.313060] Hardware name: TUXEDO TUXEDO/P95_96_97Ex,Rx, BIOS 1.07.13RTR2 
10/16/2019
  [ 2313.313068] RIP: 0010:iwl_trans_pcie_grab_nic_access+0x1f9/0x230 [iwlwifi]
  [ 2313.313070] Code: e5 fb 49 8d 57 08 bf 00 20 00 00 e8 a1 f1 6c fa e9 30 ff 
ff ff 89 c6 48 c7 c7 30 91 61 c2 c6 05 15 e2 02 00 01 e8 02 f7 6a fa <0f> 0b e9 
eb fe ff ff 49 8b 7c 24 38 48 c7 c1 98 91 61 c2 31 d2 31
  [ 2313.313071] RSP: 0018:ffffbe8e67d4fc98 EFLAGS: 00010082
  [ 2313.313073] RAX: 0000000000000000 RBX: ffffbe8e67d4fcd0 RCX: 
0000000000000006
  [ 2313.313073] RDX: 0000000000000007 RSI: 0000000000000082 RDI: 
ffff96d9903178c0
  [ 2313.313074] RBP: ffffbe8e67d4fcc0 R08: 00000000000004bb R09: 
0000000000000004
  [ 2313.313075] R10: 0000000000000000 R11: 0000000000000001 R12: 
ffff96d95de38018
  [ 2313.313076] R13: 0000000000000000 R14: ffff96d95de39e4c R15: 
000000000c04000c
  [ 2313.313077] FS:  0000000000000000(0000) GS:ffff96d990300000(0000) 
knlGS:0000000000000000
  [ 2313.313078] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 2313.313079] CR2: 00002d587263b000 CR3: 0000000387a0a006 CR4: 
00000000003606e0
  [ 2313.313080] Call Trace:
  [ 2313.313089]  iwl_trans_pcie_read_mem+0x42/0xc0 [iwlwifi]
  [ 2313.313099]  iwl_mvm_dump_lmac_error_log+0xdd/0x570 [iwlmvm]
  [ 2313.313103]  ? __dev_printk+0x5c/0x6f
  [ 2313.313106]  ? _dev_err+0x6c/0x83
  [ 2313.313110]  ? stop_one_cpu+0x73/0xa0
  [ 2313.313118]  iwl_mvm_dump_nic_error_log+0x20/0x70 [iwlmvm]
  [ 2313.313124]  iwl_mvm_nic_error+0x35/0x40 [iwlmvm]
  [ 2313.313130]  iwl_pcie_irq_handle_error+0xb3/0x110 [iwlwifi]
  [ 2313.313136]  iwl_pcie_irq_msix_handler+0x180/0x4a0 [iwlwifi]
  [ 2313.313140]  ? irq_finalize_oneshot.part.0+0xf0/0xf0
  [ 2313.313142]  irq_thread_fn+0x28/0x60
  [ 2313.313144]  irq_thread+0xda/0x170
  [ 2313.313147]  ? irq_forced_thread_fn+0x80/0x80
  [ 2313.313149]  kthread+0x104/0x140
  [ 2313.313151]  ? irq_thread_check_affinity+0xf0/0xf0
  [ 2313.313153]  ? kthread_park+0x90/0x90
  [ 2313.313156]  ret_from_fork+0x35/0x40
  [ 2313.313158] ---[ end trace 4d942559ef593ab6 ]---
- [ 2313.313161] iwlwifi 0000:08:00.0: iwlwifi transaction failed, dumping 
registers                                                  
- [ 2313.313164] iwlwifi 0000:08:00.0: iwlwifi device config registers:         
                                                      
- [ 2313.313335] iwlwifi 0000:08:00.0: 00000000: 25268086 00100406 02800029 
00000010 b4500004 00000000 00000000 00000000              
- [ 2313.313337] iwlwifi 0000:08:00.0: 00000020: 00000000 00000000 00000000 
00148086 00000000 000000c8 00000000 000001ff              
- [ 2313.313339] iwlwifi 0000:08:00.0: 00000040: 00028010 10008ec0 00100c10 
0045e812 10120142 00000000 00000000 00000000              
- [ 2313.313342] iwlwifi 0000:08:00.0: 00000060: 00000000 00080812 00000405 
00000000 00000002 00000000 00000000 00000000              
- [ 2313.313344] iwlwifi 0000:08:00.0: 00000080: 800f0011 00002000 00003000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313345] iwlwifi 0000:08:00.0: 000000a0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313348] iwlwifi 0000:08:00.0: 000000c0: 00000000 00000000 c823d001 
0d000008 00804005 00000000 00000000 00000000              
- [ 2313.313350] iwlwifi 0000:08:00.0: 000000e0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313352] iwlwifi 0000:08:00.0: 00000100: 14c10001 00000000 00000000 
00462031 00000000 00002000 00000000 00000000              
- [ 2313.313354] iwlwifi 0000:08:00.0: 00000120: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313356] iwlwifi 0000:08:00.0: 00000140: 14c00000 ff000000 000000ff 
15410018 10031003 0001001e 00481e1f 40500000              
- [ 2313.313357] iwlwifi 0000:08:00.0: iwlwifi device memory mapped registers:  
                                                      
- [ 2313.313401] iwlwifi 0000:08:00.0: 00000000: 00c89004 00000040 00000000 
00000000 00000000 00000000 00027e1f 00000000              
- [ 2313.313403] iwlwifi 0000:08:00.0: 00000020: 00000010 0c04000c 00000321 
d55555d5 d55555d5 d55555d5 80008040 041f0042              
- [ 2313.313414] iwlwifi 0000:08:00.0: iwlwifi device AER capability structure: 
                                                      
- [ 2313.313435] iwlwifi 0000:08:00.0: 00000000: 14c10001 00000000 00000000 
00462031 00000000 00002000 00000000 00000000              
- [ 2313.313436] iwlwifi 0000:08:00.0: 00000020: 00000000 00000000 00000000     
                                                      
- [ 2313.313438] iwlwifi 0000:08:00.0: iwlwifi parent port (0000:00:1d.5) 
config registers:                                           
- [ 2313.313540] iwlwifi 0000:00:1d.5: 00000000: a3358086 00100407 060400f0 
00810010 00000000 00000000 00080800 200000f0              
- [ 2313.313543] iwlwifi 0000:00:1d.5: 00000020: b450b450 0001fff1 00000000 
00000000 00000000 00000040 00000000 000202ff              
- [ 2313.313545] iwlwifi 0000:00:1d.5: 00000040: 01428010 00008001 0010000f 
0e724813 70120042 006cb200 01400000 00000008              
- [ 2313.313547] iwlwifi 0000:00:1d.5: 00000060: 00000000 00000837 00000400 
0000000e 00000003 00000000 00000000 00000000              
- [ 2313.313549] iwlwifi 0000:00:1d.5: 00000080: 00019005 fee00298 00000000 
00000000 0000a00d 95e61558 00000000 00000000              
- [ 2313.313551] iwlwifi 0000:00:1d.5: 000000a0: c8030001 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313553] iwlwifi 0000:00:1d.5: 000000c0: 00000000 00000000 00000000 
00000000 07001001 00021842 099e0008 00000000              
- [ 2313.313556] iwlwifi 0000:00:1d.5: 000000e0: 00630300 8c548c54 00100016 
00000000 00000150 4c000000 01120fb5 82000000              
- [ 2313.313558] iwlwifi 0000:00:1d.5: 00000100: 14010001 00000000 00010000 
00060011 00000000 00002000 00000000 00000000              
- [ 2313.313560] iwlwifi 0000:00:1d.5: 00000120: 00000000 00000000 00000000 
00000007 00000000 00000000 00000000 00000000              
- [ 2313.313562] iwlwifi 0000:00:1d.5: 00000140: 1501000d 0000000f 00000000 
00000000 2201001f 00000406 00000003 00000000              
- [ 2313.313564] iwlwifi 0000:00:1d.5: 00000160: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313566] iwlwifi 0000:00:1d.5: 00000180: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313567] iwlwifi 0000:00:1d.5: 000001a0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313569] iwlwifi 0000:00:1d.5: 000001c0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313571] iwlwifi 0000:00:1d.5: 000001e0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000              
- [ 2313.313573] iwlwifi 0000:00:1d.5: 00000200: 00000000 00b02800 00000000     
                                                      
- [ 2313.313582] iwlwifi 0000:08:00.0: iwlwifi root port (0000:00:1d.5) AER cap 
structure:                                            
- [ 2313.313593] iwlwifi 0000:00:1d.5: 00000000: 14010001 00000000 00010000 
00060011 00000000 00002000 00000000 00000000              
- [ 2313.313594] iwlwifi 0000:00:1d.5: 00000020: 00000000 00000000 00000000 
00000007 00000000 00000000                                
+ [ 2313.313161] iwlwifi 0000:08:00.0: iwlwifi transaction failed, dumping 
registers
+ [ 2313.313164] iwlwifi 0000:08:00.0: iwlwifi device config registers:
+ [ 2313.313335] iwlwifi 0000:08:00.0: 00000000: 25268086 00100406 02800029 
00000010 b4500004 00000000 00000000 00000000
+ [ 2313.313337] iwlwifi 0000:08:00.0: 00000020: 00000000 00000000 00000000 
00148086 00000000 000000c8 00000000 000001ff
+ [ 2313.313339] iwlwifi 0000:08:00.0: 00000040: 00028010 10008ec0 00100c10 
0045e812 10120142 00000000 00000000 00000000
+ [ 2313.313342] iwlwifi 0000:08:00.0: 00000060: 00000000 00080812 00000405 
00000000 00000002 00000000 00000000 00000000
+ [ 2313.313344] iwlwifi 0000:08:00.0: 00000080: 800f0011 00002000 00003000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313345] iwlwifi 0000:08:00.0: 000000a0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313348] iwlwifi 0000:08:00.0: 000000c0: 00000000 00000000 c823d001 
0d000008 00804005 00000000 00000000 00000000
+ [ 2313.313350] iwlwifi 0000:08:00.0: 000000e0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313352] iwlwifi 0000:08:00.0: 00000100: 14c10001 00000000 00000000 
00462031 00000000 00002000 00000000 00000000
+ [ 2313.313354] iwlwifi 0000:08:00.0: 00000120: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313356] iwlwifi 0000:08:00.0: 00000140: 14c00000 ff000000 000000ff 
15410018 10031003 0001001e 00481e1f 40500000
+ [ 2313.313357] iwlwifi 0000:08:00.0: iwlwifi device memory mapped registers:
+ [ 2313.313401] iwlwifi 0000:08:00.0: 00000000: 00c89004 00000040 00000000 
00000000 00000000 00000000 00027e1f 00000000
+ [ 2313.313403] iwlwifi 0000:08:00.0: 00000020: 00000010 0c04000c 00000321 
d55555d5 d55555d5 d55555d5 80008040 041f0042
+ [ 2313.313414] iwlwifi 0000:08:00.0: iwlwifi device AER capability structure:
+ [ 2313.313435] iwlwifi 0000:08:00.0: 00000000: 14c10001 00000000 00000000 
00462031 00000000 00002000 00000000 00000000
+ [ 2313.313436] iwlwifi 0000:08:00.0: 00000020: 00000000 00000000 00000000
+ [ 2313.313438] iwlwifi 0000:08:00.0: iwlwifi parent port (0000:00:1d.5) 
config registers:
+ [ 2313.313540] iwlwifi 0000:00:1d.5: 00000000: a3358086 00100407 060400f0 
00810010 00000000 00000000 00080800 200000f0
+ [ 2313.313543] iwlwifi 0000:00:1d.5: 00000020: b450b450 0001fff1 00000000 
00000000 00000000 00000040 00000000 000202ff
+ [ 2313.313545] iwlwifi 0000:00:1d.5: 00000040: 01428010 00008001 0010000f 
0e724813 70120042 006cb200 01400000 00000008
+ [ 2313.313547] iwlwifi 0000:00:1d.5: 00000060: 00000000 00000837 00000400 
0000000e 00000003 00000000 00000000 00000000
+ [ 2313.313549] iwlwifi 0000:00:1d.5: 00000080: 00019005 fee00298 00000000 
00000000 0000a00d 95e61558 00000000 00000000
+ [ 2313.313551] iwlwifi 0000:00:1d.5: 000000a0: c8030001 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313553] iwlwifi 0000:00:1d.5: 000000c0: 00000000 00000000 00000000 
00000000 07001001 00021842 099e0008 00000000
+ [ 2313.313556] iwlwifi 0000:00:1d.5: 000000e0: 00630300 8c548c54 00100016 
00000000 00000150 4c000000 01120fb5 82000000
+ [ 2313.313558] iwlwifi 0000:00:1d.5: 00000100: 14010001 00000000 00010000 
00060011 00000000 00002000 00000000 00000000
+ [ 2313.313560] iwlwifi 0000:00:1d.5: 00000120: 00000000 00000000 00000000 
00000007 00000000 00000000 00000000 00000000
+ [ 2313.313562] iwlwifi 0000:00:1d.5: 00000140: 1501000d 0000000f 00000000 
00000000 2201001f 00000406 00000003 00000000
+ [ 2313.313564] iwlwifi 0000:00:1d.5: 00000160: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313566] iwlwifi 0000:00:1d.5: 00000180: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313567] iwlwifi 0000:00:1d.5: 000001a0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313569] iwlwifi 0000:00:1d.5: 000001c0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313571] iwlwifi 0000:00:1d.5: 000001e0: 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000
+ [ 2313.313573] iwlwifi 0000:00:1d.5: 00000200: 00000000 00b02800 00000000
+ [ 2313.313582] iwlwifi 0000:08:00.0: iwlwifi root port (0000:00:1d.5) AER cap 
structure:
+ [ 2313.313593] iwlwifi 0000:00:1d.5: 00000000: 14010001 00000000 00010000 
00060011 00000000 00002000 00000000 00000000
+ [ 2313.313594] iwlwifi 0000:00:1d.5: 00000020: 00000000 00000000 00000000 
00000007 00000000 00000000
  [ 2313.313647] ------------[ cut here ]------------
  [ 2313.313661] WARNING: CPU: 4 PID: 1424 at 
drivers/net/wireless/intel/iwlwifi/mvm/../iwl-trans.h:1180 
iwl_mvm_dump_lmac_error_log+0x51d/0x570 [iwlmvm]
  [ 2313.313663] Modules linked in: ccm rfcomm xfrm_user xfrm_algo cmac 
algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_hda_codec_hdmi 
snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda 
snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core 
snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek 
snd_compress snd_hda_codec_generic ac97_bus ledtrig_audio snd_pcm_dmaengine 
snd_hda_intel iwlmvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep 
mac80211 snd_pcm snd_seq_midi mei_hdcp libarc4 intel_rapl_msr 
snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel 
kvm uvcvideo snd_seq intel_cstate iwlwifi intel_rapl_perf videobuf2_vmalloc 
btusb btrtl videobuf2_memops snd_seq_device btbcm snd_timer videobuf2_v4l2 
joydev btintel serio_raw bluetooth ucsi_ccg wmi_bmof videobuf2_common 
rtsx_pci_ms videodev snd typec_ucsi cfg80211 mc input_leds mxm_wmi mei_me 
memstick typec ecdh_generic mei soundcore ecc
  [ 2313.313746]  processor_thermal_device intel_rapl_common intel_soc_dts_iosf 
intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal 
intel_hid mac_hid acpi_thermal_rel sparse_keymap acpi_pad nvidia_uvm(OE) 
nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common 
ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_addrtype xt_tcpudp sch_fq_codel 
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c 
ip6table_filter coretemp parport_pc ip6_tables iptable_filter ppdev bpfilter lp 
parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) 
zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_apple hid_generic usbhid hid 
nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel i915 i2c_algo_bit rtsx_pci_sdmmc aesni_intel drm_kms_helper 
crypto_simd syscopyarea sysfillrect cryptd uas sysimgblt glue_helper 
fb_sys_fops psmouse intel_lpss_pci rtsx_pci r8169 intel_lpss drm i2c_i801 ahci 
ipmi_devintf usb_storage
  [ 2313.313768]  realtek idma64 libahci virt_dma ipmi_msghandler 
i2c_nvidia_gpu pinctrl_cannonlake wmi video pinctrl_intel
  [ 2313.313775] CPU: 4 PID: 1424 Comm: irq/149-iwlwifi Tainted: P        W  OE 
    5.4.0-39-generic #43-Ubuntu
  [ 2313.313776] Hardware name: TUXEDO TUXEDO/P95_96_97Ex,Rx, BIOS 1.07.13RTR2 
10/16/2019
  [ 2313.313785] RIP: 0010:iwl_mvm_dump_lmac_error_log+0x51d/0x570 [iwlmvm]
  [ 2313.313787] Code: eb ff 44 8b 45 d4 48 8b 3b 31 d2 48 c7 c1 e1 d8 75 c2 31 
f6 e8 04 a6 eb ff e9 67 fb ff ff 49 c7 c1 7d d4 75 c2 e9 bb fc ff ff <0f> 0b 49 
8b 7c 24 38 48 c7 c1 90 18 76 c2 31 d2 31 f6 e8 dc a5 eb
  [ 2313.313788] RSP: 0018:ffffbe8e67d4fd10 EFLAGS: 00010286
  [ 2313.313790] RAX: 00000000fffffff0 RBX: ffff96d9576d1e48 RCX: 
0000000000000000
  [ 2313.313792] RDX: 0000000000000002 RSI: 0000000000000246 RDI: 
0000000000000246
  [ 2313.313793] RBP: ffffbe8e67d4fdd0 R08: 0000000000000507 R09: 
ffffffffbe7b0704
  [ 2313.313795] R10: ffffffffbe7941a8 R11: ffffbe8e67d4f9d0 R12: 
ffff96d95de38018
  [ 2313.313796] R13: 0000000000813b44 R14: 0000000000000000 R15: 
ffff96d95de39ef0
  [ 2313.313798] FS:  0000000000000000(0000) GS:ffff96d990300000(0000) 
knlGS:0000000000000000
  [ 2313.313799] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 2313.313801] CR2: 00002d587263b000 CR3: 0000000387a0a006 CR4: 
00000000003606e0
  [ 2313.313802] Call Trace:
  [ 2313.313806]  ? __dev_printk+0x5c/0x6f
  [ 2313.313808]  ? _dev_err+0x6c/0x83
  [ 2313.313813]  ? stop_one_cpu+0x73/0xa0
  [ 2313.313823]  iwl_mvm_dump_nic_error_log+0x20/0x70 [iwlmvm]
  [ 2313.313830]  iwl_mvm_nic_error+0x35/0x40 [iwlmvm]
  [ 2313.313841]  iwl_pcie_irq_handle_error+0xb3/0x110 [iwlwifi]
  [ 2313.313849]  iwl_pcie_irq_msix_handler+0x180/0x4a0 [iwlwifi]
  [ 2313.313856]  ? irq_finalize_oneshot.part.0+0xf0/0xf0
  [ 2313.313861]  irq_thread_fn+0x28/0x60
  [ 2313.313865]  irq_thread+0xda/0x170
  [ 2313.313869]  ? irq_forced_thread_fn+0x80/0x80
  [ 2313.313874]  kthread+0x104/0x140
  [ 2313.313878]  ? irq_thread_check_affinity+0xf0/0xf0
  [ 2313.313881]  ? kthread_park+0x90/0x90
  [ 2313.313886]  ret_from_fork+0x35/0x40
  [ 2313.313891] ---[ end trace 4d942559ef593ab7 ]---
- [ 2313.313895] iwlwifi 0000:08:00.0: HW error, resetting before reading       
                                                      
+ [ 2313.313895] iwlwifi 0000:08:00.0: HW error, resetting before reading
  [ 2313.320878] iwlwifi 0000:08:00.0: Start IWL Error Log Dump:
- [ 2313.320880] iwlwifi 0000:08:00.0: Status: 0x00000040, count: 994349763     
                                                      
- [ 2313.320882] iwlwifi 0000:08:00.0: Loaded firmware version: 46.6bf1df06.0   
                                                      
- [ 2313.320884] iwlwifi 0000:08:00.0: 0x7FEF57BF | ADVANCED_SYSASSERT          
                                                      
+ [ 2313.320880] iwlwifi 0000:08:00.0: Status: 0x00000040, count: 994349763
+ [ 2313.320882] iwlwifi 0000:08:00.0: Loaded firmware version: 46.6bf1df06.0
+ [ 2313.320884] iwlwifi 0000:08:00.0: 0x7FEF57BF | ADVANCED_SYSASSERT
  [ 2313.320885] iwlwifi 0000:08:00.0: 0x430D67A4 | trm_hw_status0
  [ 2313.320886] iwlwifi 0000:08:00.0: 0xB73B3A03 | trm_hw_status1
  [ 2313.320887] iwlwifi 0000:08:00.0: 0x514FE389 | branchlink2
  [ 2313.320888] iwlwifi 0000:08:00.0: 0xF788EFED | interruptlink1
  [ 2313.320889] iwlwifi 0000:08:00.0: 0x6A12169B | interruptlink2
  [ 2313.320890] iwlwifi 0000:08:00.0: 0xED77E0BF | data1
  [ 2313.320891] iwlwifi 0000:08:00.0: 0x0A551906 | data2
  [ 2313.320892] iwlwifi 0000:08:00.0: 0xF7224DB7 | data3
  [ 2313.320893] iwlwifi 0000:08:00.0: 0xA260520C | beacon time
  [ 2313.320893] iwlwifi 0000:08:00.0: 0xC6DF3EFB | tsf low
  [ 2313.320894] iwlwifi 0000:08:00.0: 0x6A0774B8 | tsf hi
  [ 2313.320895] iwlwifi 0000:08:00.0: 0x19FB8975 | time gp1
  [ 2313.320897] iwlwifi 0000:08:00.0: 0x00787160 | time gp2
- [ 2313.320898] iwlwifi 0000:08:00.0: 0x63B1FFBE | uCode revision type         
                                                      
- [ 2313.320900] iwlwifi 0000:08:00.0: 0x050B9C79 | uCode version major         
                                                      
- [ 2313.320901] iwlwifi 0000:08:00.0: 0xF1F5AF1A | uCode version minor         
                                                      
+ [ 2313.320898] iwlwifi 0000:08:00.0: 0x63B1FFBE | uCode revision type
+ [ 2313.320900] iwlwifi 0000:08:00.0: 0x050B9C79 | uCode version major
+ [ 2313.320901] iwlwifi 0000:08:00.0: 0xF1F5AF1A | uCode version minor
  [ 2313.320902] iwlwifi 0000:08:00.0: 0xF48B16B7 | hw version
  [ 2313.320903] iwlwifi 0000:08:00.0: 0x5FCDF7DF | board version
  [ 2313.320904] iwlwifi 0000:08:00.0: 0xFF7EF764 | hcmd
  [ 2313.320905] iwlwifi 0000:08:00.0: 0x69240F92 | isr0
  [ 2313.320906] iwlwifi 0000:08:00.0: 0x6FF772DF | isr1
  [ 2313.320907] iwlwifi 0000:08:00.0: 0x29F158B6 | isr2
  [ 2313.320907] iwlwifi 0000:08:00.0: 0xFF7FB8ED | isr3
  [ 2313.320908] iwlwifi 0000:08:00.0: 0xE12360A5 | isr4
  [ 2313.320909] iwlwifi 0000:08:00.0: 0x7F5F474C | last cmd Id
  [ 2313.320910] iwlwifi 0000:08:00.0: 0xE0255CC3 | wait_event
  [ 2313.320911] iwlwifi 0000:08:00.0: 0xDDBBEBCF | l2p_control
  [ 2313.320912] iwlwifi 0000:08:00.0: 0xB038AD3A | l2p_duration
  [ 2313.320913] iwlwifi 0000:08:00.0: 0x637FA97E | l2p_mhvalid
  [ 2313.320914] iwlwifi 0000:08:00.0: 0xA4083502 | l2p_addr_match
  [ 2313.320915] iwlwifi 0000:08:00.0: 0xF6CFBCCA | lmpm_pmg_sel
  [ 2313.320916] iwlwifi 0000:08:00.0: 0x172A8918 | timestamp
  [ 2313.320917] iwlwifi 0000:08:00.0: 0xF97EBF9D | flow_handler
  [ 2313.320968] iwlwifi 0000:08:00.0: Start IWL Error Log Dump:
- [ 2313.320969] iwlwifi 0000:08:00.0: Status: 0x00000040, count: -184168469    
                                                      
- [ 2313.320971] iwlwifi 0000:08:00.0: 0x497701CE | ADVANCED_SYSASSERT          
                                                      
+ [ 2313.320969] iwlwifi 0000:08:00.0: Status: 0x00000040, count: -184168469
+ [ 2313.320971] iwlwifi 0000:08:00.0: 0x497701CE | ADVANCED_SYSASSERT
  [ 2313.320972] iwlwifi 0000:08:00.0: 0xEFE6F7BD | umac branchlink1
  [ 2313.320972] iwlwifi 0000:08:00.0: 0x68900B28 | umac branchlink2
- [ 2313.320973] iwlwifi 0000:08:00.0: 0xEDDFFAAA | umac interruptlink1         
                                                      
- [ 2313.320974] iwlwifi 0000:08:00.0: 0x5F1E8884 | umac interruptlink2         
                                                      
+ [ 2313.320973] iwlwifi 0000:08:00.0: 0xEDDFFAAA | umac interruptlink1
+ [ 2313.320974] iwlwifi 0000:08:00.0: 0x5F1E8884 | umac interruptlink2
  [ 2313.320975] iwlwifi 0000:08:00.0: 0xF973AE77 | umac data1
  [ 2313.320976] iwlwifi 0000:08:00.0: 0x1CFAC4EC | umac data2
  [ 2313.320977] iwlwifi 0000:08:00.0: 0x4FD9F44D | umac data3
  [ 2313.320978] iwlwifi 0000:08:00.0: 0x8B05A711 | umac major
  [ 2313.320979] iwlwifi 0000:08:00.0: 0xFBDAEF3C | umac minor
  [ 2313.320980] iwlwifi 0000:08:00.0: 0xA2D50223 | frame pointer
  [ 2313.320981] iwlwifi 0000:08:00.0: 0xF3594FAF | stack pointer
  [ 2313.320982] iwlwifi 0000:08:00.0: 0xCA7A1060 | last host cmd
  [ 2313.320983] iwlwifi 0000:08:00.0: 0xFBDCD7E7 | isr status reg
  [ 2313.321007] iwlwifi 0000:08:00.0: Fseq Registers:
  [ 2313.321076] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_ERROR_CODE
- [ 2313.321210] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_TOP_INIT_VERSION       
                                                      
- [ 2313.321345] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVIO_INIT_VERSION     
                                                      
+ [ 2313.321210] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_TOP_INIT_VERSION
+ [ 2313.321345] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVIO_INIT_VERSION
  [ 2313.321480] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_OTP_VERSION
- [ 2313.321615] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_TOP_CONTENT_VERSION    
                                                      
+ [ 2313.321615] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_TOP_CONTENT_VERSION
  [ 2313.321750] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_ALIVE_TOKEN
  [ 2313.321884] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVI_ID
  [ 2313.322019] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | FSEQ_CNVR_ID
- [ 2313.322153] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | CNVI_AUX_MISC_CHIP          
                                                      
- [ 2313.322287] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | CNVR_AUX_MISC_CHIP          
                                                      
- [ 2313.322422] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | 
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM                                          
  
- [ 2313.322556] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | 
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR                                      
  
+ [ 2313.322153] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | CNVI_AUX_MISC_CHIP
+ [ 2313.322287] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | CNVR_AUX_MISC_CHIP
+ [ 2313.322422] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | 
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
+ [ 2313.322556] iwlwifi 0000:08:00.0: 0xA5A5A5A2 | 
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
  [ 2313.322569] iwlwifi 0000:08:00.0: Collecting data: trigger 2 fired.
  [ 2313.322572] ieee80211 phy0: Hardware restart was requested
  [ 2329.809820] clocksource: timekeeping watchdog on CPU11: Marking 
clocksource 'tsc' as unstable because the skew is too large:
  [ 2329.809821] clocksource:                       'acpi_pm' wd_now: e7f8e8 
wd_last: 2ede51 mask: ffffff
  [ 2329.809822] clocksource:                       'tsc' cs_now: 588d956b74a 
cs_last: 583f9a512ec mask: ffffffffffffffff
  [ 2329.809823] tsc: Marking TSC unstable due to clocksource watchdog
  [ 2329.809860] TSC found unstable after boot, most likely due to broken BIOS. 
Use 'tsc=unstable'.
  [ 2329.809861] sched_clock: Marking unstable (2329929418918, 
-119780068)<-(2329844474408, -34614916)
  [ 2341.907311] watchdog: BUG: soft lockup - CPU#4 stuck for 23s! 
[kworker/4:1:79325]
  [ 2341.907313] Modules linked in: ccm rfcomm xfrm_user xfrm_algo cmac 
algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_hda_codec_hdmi 
snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda 
snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core 
snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek 
snd_compress snd_hda_codec_generic ac97_bus ledtrig_audio snd_pcm_dmaengine 
snd_hda_intel iwlmvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep 
mac80211 snd_pcm snd_seq_midi mei_hdcp libarc4 intel_rapl_msr 
snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel 
kvm uvcvideo snd_seq intel_cstate iwlwifi intel_rapl_perf videobuf2_vmalloc 
btusb btrtl videobuf2_memops snd_seq_device btbcm snd_timer videobuf2_v4l2 
joydev btintel serio_raw bluetooth ucsi_ccg wmi_bmof videobuf2_common 
rtsx_pci_ms videodev snd typec_ucsi cfg80211 mc input_leds mxm_wmi mei_me 
memstick typec ecdh_generic mei soundcore ecc
  [ 2341.907334]  processor_thermal_device intel_rapl_common intel_soc_dts_iosf 
intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal 
intel_hid mac_hid acpi_thermal_rel sparse_keymap acpi_pad nvidia_uvm(OE) 
nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common 
ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_addrtype xt_tcpudp sch_fq_codel 
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c 
ip6table_filter coretemp parport_pc ip6_tables iptable_filter ppdev bpfilter lp 
parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) 
zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_apple hid_generic usbhid hid 
nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel i915 i2c_algo_bit rtsx_pci_sdmmc aesni_intel drm_kms_helper 
crypto_simd syscopyarea sysfillrect cryptd uas sysimgblt glue_helper 
fb_sys_fops psmouse intel_lpss_pci rtsx_pci r8169 intel_lpss drm i2c_i801 ahci 
ipmi_devintf usb_storage
  [ 2341.907356]  realtek idma64 libahci virt_dma ipmi_msghandler 
i2c_nvidia_gpu pinctrl_cannonlake wmi video pinctrl_intel
  [ 2341.907360] CPU: 4 PID: 79325 Comm: kworker/4:1 Tainted: P        W  OE    
 5.4.0-39-generic #43-Ubuntu
  [ 2341.907360] Hardware name: TUXEDO TUXEDO/P95_96_97Ex,Rx, BIOS 1.07.13RTR2 
10/16/2019
  [ 2341.907370] Workqueue: events iwl_fw_error_dump_wk [iwlwifi]
  [ 2341.907373] RIP: 0010:_raw_spin_unlock_irqrestore+0x15/0x20
  [ 2341.907375] Code: ff 7f 5b 44 89 f0 41 5c 41 5d 41 5e 41 5f 5d c3 90 90 90 
90 90 0f 1f 44 00 00 55 48 89 e5 c6 07 00 0f 1f 40 00 48 89 f7 57 9d <0f> 1f 44 
00 00 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 49 89 f8 b8 00
  [ 2341.907375] RSP: 0018:ffffbe8e47db7cc0 EFLAGS: 00000246 ORIG_RAX: 
ffffffffffffff13
  [ 2341.907376] RAX: ffffffffc25ef560 RBX: ffff96d95de38018 RCX: 
0000000000000003
  [ 2341.907376] RDX: 0000000008040005 RSI: 0000000000000246 RDI: 
0000000000000246
  [ 2341.907377] RBP: ffffbe8e47db7cc0 R08: 0000000000003a98 R09: 
0000000000000011
  [ 2341.907377] R10: ffffef4f8f5cae48 R11: 00000000000001bf R12: 
00000000fffffff7
  [ 2341.907378] R13: ffffbe8e47db7cf8 R14: 0000000000400000 R15: 
ffff96d9576d2cd8
  [ 2341.907379] FS:  0000000000000000(0000) GS:ffff96d990300000(0000) 
knlGS:0000000000000000
  [ 2341.907379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 2341.907380] CR2: 00002d587263b000 CR3: 0000000387a0a006 CR4: 
00000000003606e0
  [ 2341.907380] Call Trace:
  [ 2341.907387]  iwl_trans_pcie_release_nic_access+0x61/0x70 [iwlwifi]
  [ 2341.907391]  iwl_trans_pcie_read_mem+0x94/0xc0 [iwlwifi]
  [ 2341.907396]  iwl_fw_dump_mem.isra.0.part.0+0x50/0x90 [iwlwifi]
  [ 2341.907400]  iwl_fw_error_dump_file.isra.0+0x438/0xfe0 [iwlwifi]
  [ 2341.907404]  iwl_fw_dbg_collect_sync+0xe7/0x310 [iwlwifi]
  [ 2341.907405]  ? __switch_to_asm+0x40/0x70
  [ 2341.907406]  ? __switch_to_asm+0x34/0x70
  [ 2341.907410]  iwl_fw_error_dump_wk+0x59/0x80 [iwlwifi]
  [ 2341.907412]  process_one_work+0x1eb/0x3b0
  [ 2341.907413]  worker_thread+0x4d/0x400
  [ 2341.907414]  kthread+0x104/0x140
  [ 2341.907415]  ? process_one_work+0x3b0/0x3b0
  [ 2341.907416]  ? kthread_park+0x90/0x90
  [ 2341.907417]  ret_from_fork+0x35/0x40
  [ 2342.291655] clocksource: Switched to clocksource acpi_pm
  [ 2342.376509] iwlwifi 0000:08:00.0: Failing on timeout while stopping DMA 
channel 8 [0xa5a5a5a2]
  [ 2342.435237] iwlwifi 0000:08:00.0: Applying debug destination EXTERNAL_DRAM
  [ 2342.548864] iwlwifi 0000:08:00.0: Applying debug destination EXTERNAL_DRAM
  [ 2342.613291] iwlwifi 0000:08:00.0: FW already configured (0) - 
re-configuring
  [ 2342.627970] iwlwifi 0000:08:00.0: BIOS contains WGDS but no WRDS
  
- 
  1) $ lsb_release -rd
  Description:    Ubuntu 20.04 LTS
  Release:        20.04
  
  2) I am not sure what package is in use but I can point to the firmware
  used by the adapter:
  
  # ls /lib/firmware/iwlwifi-9260-th-b0-jf-b0-*
  /lib/firmware/iwlwifi-9260-th-b0-jf-b0-33.ucode
  /lib/firmware/iwlwifi-9260-th-b0-jf-b0-34.ucode
  /lib/firmware/iwlwifi-9260-th-b0-jf-b0-38.ucode
  /lib/firmware/iwlwifi-9260-th-b0-jf-b0-41.ucode
  /lib/firmware/iwlwifi-9260-th-b0-jf-b0-43.ucode
  /lib/firmware/iwlwifi-9260-th-b0-jf-b0-46.ucode
  
  3) What you expected to happen
  
  The interface not to freeze.
  
  4) What happened instead
  
  The interface freezes sometimes leaving the last key pressed stucked. If
  it the key was delete it will have deleted all the text when it
  unfreezes.

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https://bugs.launchpad.net/bugs/1885266

Title:
  iwlwifi causes random UI freezes

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