Comment 14 for bug 1836986

It is not resolved for me in 5.3.*
Linux thinkpad 5.3.0-050300rc2-generic #201907281631 SMP Sun Jul 28 20:34:00 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Only thing that seems to work for me is this: modprobe iwlwifi 11n_disable=1 bt_coex_active=0
Otherwise, machine locks up, I check dmesg and has the microcode errors for iwlwifi.

Further, firmware also crashes with version 43 as well. Is this the same bug, should I open a separate ticket?

[10422.844956] ------------[ cut here ]------------
[10422.845044] WARNING: CPU: 3 PID: 831 at drivers/net/wireless/intel/iwlwifi/mvm/../iwl-trans.h:1201 iwl_mvm_dump_lmac_error_log.cold+0xc/0x13 [iwlmvm]
[10422.845048] Modules linked in: veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter overlay rfcomm xt_CHECKSUM iptable_mangle xt_MASQUERADE iptable_nat nf_nat xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache ccm bnep binfmt_misc nls_iso8859_1 uvcvideo edac_mce_amd videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 kvm_amd ccp videobuf2_common kvm irqbypass snd_seq_midi videodev btusb snd_seq_midi_event mc btrtl btbcm iwlmvm btintel snd_hda_codec_conexant input_leds snd_hda_codec_generic bluetooth mac80211 snd_hda_codec_hdmi joydev snd_hda_intel thinkpad_acpi serio_raw wmi_bmof ecdh_generic snd_rawmidi nvram libarc4 ecc snd_hda_codec k10temp ledtrig_audio snd_hda_core iwlwifi snd_hwdep snd_seq snd_pcm snd_seq_device snd_timer cfg80211 snd ucsi_acpi typec_ucsi typec
[10422.845103] soundcore mac_hid sch_fq_codel parport_pc sunrpc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel amdgpu aes_x86_64 crypto_simd cryptd glue_helper amd_iommu_v2 gpu_sched i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt psmouse nvme fb_sys_fops sdhci_pci ahci cqhci r8169 i2c_piix4 libahci drm sdhci realtek nvme_core wmi video i2c_scmi
[10422.845140] CPU: 3 PID: 831 Comm: irq/77-iwlwifi: Tainted: G W 5.3.0-050300rc2-generic #201907281631
[10422.845141] Hardware name: LENOVO 20KVCTO1WW/20KVCTO1WW, BIOS R0UET73W (1.53 ) 06/14/2019
[10422.845156] RIP: 0010:iwl_mvm_dump_lmac_error_log.cold+0xc/0x13 [iwlmvm]
[10422.845159] Code: 13 04 b6 d2 0f 0b e9 40 1d fd ff 48 c7 c7 08 67 db c0 e8 00 04 b6 d2 0f 0b e9 ee 1d fd ff 48 c7 c7 f0 69 db c0 e8 ed 03 b6 d2 <0f> 0b e9 2e 27 fd ff 48 c7 c7 f0 69 db c0 e8 da 03 b6 d2 0f 0b 41
[10422.845161] RSP: 0018:ffffbccf01697d10 EFLAGS: 00010246
[10422.845164] RAX: 0000000000000024 RBX: ffff9a07aa801e28 RCX: 0000000000000000
[10422.845165] RDX: 0000000000000000 RSI: ffff9a07ff0d7448 RDI: ffff9a07ff0d7448
[10422.845166] RBP: ffffbccf01697dd0 R08: ffff9a07ff0d7448 R09: 0000000000000004
[10422.845168] R10: 0000000000000000 R11: 0000000000000001 R12: 000000000080dccc
[10422.845169] R13: ffff9a07f2090018 R14: 0000000000000000 R15: ffff9a07f2099138
[10422.845171] FS: 0000000000000000(0000) GS:ffff9a07ff0c0000(0000) knlGS:0000000000000000
[10422.845172] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10422.845174] CR2: 00001820b049c018 CR3: 000000022886c000 CR4: 00000000003406e0
[10422.845175] Call Trace:
[10422.845188] ? __dev_printk+0x5c/0x6f
[10422.845191] ? _dev_err+0x6c/0x83
[10422.845197] ? stop_one_cpu+0x73/0xa0
[10422.845210] iwl_mvm_dump_nic_error_log+0x20/0x70 [iwlmvm]
[10422.845221] iwl_mvm_nic_error+0x35/0x40 [iwlmvm]
[10422.845232] iwl_pcie_irq_handle_error+0xb1/0x110 [iwlwifi]
[10422.845243] iwl_pcie_irq_msix_handler+0x197/0x4b0 [iwlwifi]
[10422.845249] ? irq_finalize_oneshot.part.0+0xf0/0xf0
[10422.845251] irq_thread_fn+0x28/0x60
[10422.845253] irq_thread+0xda/0x170
[10422.845256] ? irq_forced_thread_fn+0x80/0x80
[10422.845260] kthread+0x104/0x140
[10422.845263] ? irq_thread_check_affinity+0xf0/0xf0
[10422.845265] ? kthread_park+0x80/0x80
[10422.845271] ret_from_fork+0x22/0x40
[10422.845274] ---[ end trace 403310f7f83d2261 ]---
[10422.845280] iwlwifi 0000:04:00.0: HW error, resetting before reading
[10422.852409] iwlwifi 0000:04:00.0: Start IWL Error Log Dump:
[10422.852418] iwlwifi 0000:04:00.0: Status: 0x00000080, count: 1870036983
[10422.852421] iwlwifi 0000:04:00.0: Loaded firmware version: 43.95eb4e97.0
[10422.852424] iwlwifi 0000:04:00.0: 0x06620275 | ADVANCED_SYSASSERT
[10422.852425] iwlwifi 0000:04:00.0: 0xF3F7F6FB | trm_hw_status0
[10422.852427] iwlwifi 0000:04:00.0: 0x91448074 | trm_hw_status1
[10422.852428] iwlwifi 0000:04:00.0: 0xF1FBFBFB | branchlink2
[10422.852430] iwlwifi 0000:04:00.0: 0x0F050020 | interruptlink1
[10422.852431] iwlwifi 0000:04:00.0: 0x95EC3F94 | interruptlink2
[10422.852433] iwlwifi 0000:04:00.0: 0x15C59088 | data1
[10422.852434] iwlwifi 0000:04:00.0: 0xEF64A397 | data2
[10422.852435] iwlwifi 0000:04:00.0: 0xC7982780 | data3
[10422.852437] iwlwifi 0000:04:00.0: 0xDFFFFFBD | beacon time
[10422.852438] iwlwifi 0000:04:00.0: 0x88416C06 | tsf low
[10422.852439] iwlwifi 0000:04:00.0: 0x6F9CFBF7 | tsf hi
[10422.852441] iwlwifi 0000:04:00.0: 0x6B6000C4 | time gp1
[10422.852442] iwlwifi 0000:04:00.0: 0xDDFC26FD | time gp2
[10422.852443] iwlwifi 0000:04:00.0: 0x004D1269 | uCode revision type
[10422.852444] iwlwifi 0000:04:00.0: 0x47ABFF6A | uCode version major
[10422.852446] iwlwifi 0000:04:00.0: 0x35D44848 | uCode version minor
[10422.852447] iwlwifi 0000:04:00.0: 0x7DDD7FCF | hw version
[10422.852448] iwlwifi 0000:04:00.0: 0x21C01068 | board version
[10422.852449] iwlwifi 0000:04:00.0: 0x01C60610 | hcmd
[10422.852451] iwlwifi 0000:04:00.0: 0x3FFBB7B9 | isr0
[10422.852452] iwlwifi 0000:04:00.0: 0x53261502 | isr1
[10422.852453] iwlwifi 0000:04:00.0: 0x7F86EEFE | isr2
[10422.852455] iwlwifi 0000:04:00.0: 0x45413906 | isr3
[10422.852456] iwlwifi 0000:04:00.0: 0xDB05DDDF | isr4
[10422.852457] iwlwifi 0000:04:00.0: 0x054FA105 | last cmd Id
[10422.852458] iwlwifi 0000:04:00.0: 0xEE7AC7DF | wait_event
[10422.852460] iwlwifi 0000:04:00.0: 0x804056B4 | l2p_control
[10422.852461] iwlwifi 0000:04:00.0: 0xAFBDF1F5 | l2p_duration
[10422.852462] iwlwifi 0000:04:00.0: 0x001588A4 | l2p_mhvalid
[10422.852463] iwlwifi 0000:04:00.0: 0xD25F3FEA | l2p_addr_match
[10422.852465] iwlwifi 0000:04:00.0: 0x60618211 | lmpm_pmg_sel
[10422.852466] iwlwifi 0000:04:00.0: 0x3FDE7F2D | timestamp
[10422.852467] iwlwifi 0000:04:00.0: 0xCDA08000 | flow_handler
[10422.852587] iwlwifi 0000:04:00.0: Start IWL Error Log Dump:
[10422.852588] iwlwifi 0000:04:00.0: Status: 0x00000080, count: -119337
[10422.852590] iwlwifi 0000:04:00.0: 0x1B20F820 | ADVANCED_SYSASSERT
[10422.852591] iwlwifi 0000:04:00.0: 0xBFFF7F2F | umac branchlink1
[10422.852593] iwlwifi 0000:04:00.0: 0xC12F044D | umac branchlink2
[10422.852594] iwlwifi 0000:04:00.0: 0xF5877FFF | umac interruptlink1
[10422.852595] iwlwifi 0000:04:00.0: 0x24AC288A | umac interruptlink2
[10422.852597] iwlwifi 0000:04:00.0: 0x5ED95DFC | umac data1
[10422.852599] iwlwifi 0000:04:00.0: 0x0286FB11 | umac data2
[10422.852600] iwlwifi 0000:04:00.0: 0xFFF3DDF7 | umac data3
[10422.852601] iwlwifi 0000:04:00.0: 0x084A4888 | umac major
[10422.852602] iwlwifi 0000:04:00.0: 0xFFFF9E7F | umac minor
[10422.852604] iwlwifi 0000:04:00.0: 0x1093499A | frame pointer
[10422.852605] iwlwifi 0000:04:00.0: 0xF7E76BFA | stack pointer
[10422.852606] iwlwifi 0000:04:00.0: 0x0693E108 | last host cmd
[10422.852607] iwlwifi 0000:04:00.0: 0xFFF7BEDE | isr status reg
[10422.852695] iwlwifi 0000:04:00.0: Fseq Registers:
[10422.852807] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_ERROR_CODE
[10422.852942] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_TOP_INIT_VERSION
[10422.853077] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_CNVIO_INIT_VERSION
[10422.853212] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_OTP_VERSION
[10422.853347] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_TOP_CONTENT_VERSION
[10422.853482] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_ALIVE_TOKEN
[10422.853617] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_CNVI_ID
[10422.853752] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | FSEQ_CNVR_ID
[10422.853887] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | CNVI_AUX_MISC_CHIP
[10422.854023] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | CNVR_AUX_MISC_CHIP
[10422.854159] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[10422.854297] iwlwifi 0000:04:00.0: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[10422.854304] iwlwifi 0000:04:00.0: Collecting data: trigger 2 fired.
[10422.854335] ieee80211 phy0: Hardware restart was requested
[10428.263814] [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted!
[10439.419397] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 8 [0xa5a5a5a2]