[SOLVED] iwlwifi queue stuck

archer803 · 2020-08-03 14:42:06

Hi,

This is my first post here. I recently installed arch (5.7.11-arch1-1) on my dell xps 15 7590, archwiki seems to suggest there should be no problem with wifi.
But I keep having some issues with wifi, it got extremely slow after starting up around 10 minutes (speed drops from 50Mbps to 5Mbps). After
some googling, I think it is due to an issue of iwlwifi (See the long log message below).
I mostly use netctl to start the wifi profile, and it seems working alright even in the presence of iwlwifi error.

Any comments or suggestions would be much appreciated.

Thanks in advance!

sudo netctl status <profile>

● netctl@<profile>.service - Automatically generated profile by wifi-menu
     Loaded: loaded (/usr/lib/systemd/system/netctl@.service; enabled; vendor preset: disabled)
    Drop-In: /etc/systemd/system/netctl@<profile>.service.d
             └─profile.conf
     Active: active (exited) since Mon 2020-08-03 06:27:14 ADT; 4h 51min ago
       Docs: man:netctl.profile(5)
    Process: 436 ExecStart=/usr/lib/netctl/network start <profile> (code=exited, status=0/SUCCESS)
   Main PID: 436 (code=exited, status=0/SUCCESS)
     Status: "online"

sudo journalctl -xe

Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Queue 3 is stuck 97 138
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Microcode SW error detected. Restarting 0x0.
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Start IWL Error Log Dump:
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Status: 0x00000040, count: 6
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Loaded firmware version: 53.c31ac674.0 cc-a0-53.ucode
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x008026F4 | trm_hw_status0
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | trm_hw_status1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x004F9A5E | branchlink2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x004E44AC | interruptlink1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x004E44AC | interruptlink2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00007AE8 | data1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0xFF000000 | data2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | data3
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x02809D88 | beacon time
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x97FD616C | tsf low
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x000000F0 | tsf hi
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | time gp1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x1F5210B1 | time gp2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000001 | uCode revision type
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000035 | uCode version major
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0xC31AC674 | uCode version minor
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000340 | hw version
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00C89000 | board version
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x0361001C | hcmd
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80020000 | isr0
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00400000 | isr1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x08F00002 | isr2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00C37F4C | isr3
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | isr4
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00EA019C | last cmd Id
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00007AE8 | wait_event
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | l2p_control
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00002020 | l2p_duration
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | l2p_mhvalid
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x0000000E | l2p_addr_match
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000009 | lmpm_pmg_sel
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | timestamp
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x0000A058 | flow_handler
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Start IWL Error Log Dump:
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Status: 0x00000040, count: 7
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x20000066 | NMI_INTERRUPT_HOST
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | umac branchlink1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80467420 | umac branchlink2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80483454 | umac interruptlink1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80483454 | umac interruptlink2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x01000000 | umac data1
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80483454 | umac data2
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | umac data3
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000035 | umac major
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0xC31AC674 | umac minor
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x1F5210AF | frame pointer
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0xC088626C | stack pointer
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00EF010C | last host cmd
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000000 | isr status reg
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: Fseq Registers:
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x60000100 | FSEQ_ERROR_CODE
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80290021 | FSEQ_TOP_INIT_VERSION
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00050008 | FSEQ_CNVIO_INIT_VERSION
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x0000A503 | FSEQ_OTP_VERSION
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x80000003 | FSEQ_TOP_CONTENT_VERSION
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00100530 | FSEQ_CNVI_ID
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000532 | FSEQ_CNVR_ID
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00100530 | CNVI_AUX_MISC_CHIP
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x00000532 | CNVR_AUX_MISC_CHIP
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
Aug 03 11:03:40  kernel: iwlwifi 0000:3b:00.0: WRT: Collecting data: ini trigger 4 fired.
Aug 03 11:03:40  kernel: ieee80211 phy0: Hardware restart was requested

Last edited by archer803 (2020-08-08 01:18:14)

archer803 · 2020-08-08 01:17:48

I have managed to solve it! See here .
To summarize, I add 'options iwlwifi 11n_disable=1' to the config file '/etc/modprobe.d/iwlwifi.conf' file, and that seems to fix this issue.

Arch Linux

#1 2020-08-03 14:42:06

[SOLVED] iwlwifi queue stuck

#2 2020-08-08 01:17:48

Re: [SOLVED] iwlwifi queue stuck

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