netdev - iwlwifi: Microcode SW error

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Message-ID: <20210419090800.GA52493@limone.gonsolo.de>
Date:   Mon, 19 Apr 2021 11:08:00 +0200
From:   Gon Solo <gonsolo@...il.com>
To:     luciano.coelho@...el.com, kvalo@...eaurora.org,
        davem@...emloft.net, kuba@...nel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: iwlwifi: Microcode SW error

Hi all!

My internet was very slow and I saw the following in dmesg:

[Apr19 10:50] iwlwifi 0000:02:00.0: Queue 10 is active on fifo 1 and stuck for 10000 ms. SW [40, 93] HW [40, 93] FH TRB=0x0c010a037
[  +0,001244] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x2000000.

The rest of the message is at the end of this message.
The kernel version is "Linux Limone 5.12.0-051200rc7-lowlatency" from https://kernel.ubuntu.com/~kernel-ppa/mainline.
The relevant output of lspci is:
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)

I would be glad to provide additional details if somebody is interested
to fix this bug.

Regards,
Andreas

[[Apr19 10:50] iwlwifi 0000:02:00.0: Queue 10 is active on fifo 1 and stuck for 10000 ms. SW [40, 93] HW [40, 93] FH TRB=0x0c010a037
[  +0,001244] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x2000000.
[  +0,000160] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[  +0,000004] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 6
[  +0,000005] iwlwifi 0000:02:00.0: Loaded firmware version: 17.3216344376.0 7260-17.ucode
[  +0,000005] iwlwifi 0000:02:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
[  +0,000005] iwlwifi 0000:02:00.0: 0x000002B0 | trm_hw_status0
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[  +0,000004] iwlwifi 0000:02:00.0: 0x00000B30 | branchlink2
[  +0,000004] iwlwifi 0000:02:00.0: 0x000164C0 | interruptlink1
[  +0,000003] iwlwifi 0000:02:00.0: 0x000164C0 | interruptlink2
[  +0,000004] iwlwifi 0000:02:00.0: 0x00000000 | data1
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000080 | data2
[  +0,000003] iwlwifi 0000:02:00.0: 0x07030000 | data3
[  +0,000004] iwlwifi 0000:02:00.0: 0x5440EBF3 | beacon time
[  +0,000004] iwlwifi 0000:02:00.0: 0xF0BCB49D | tsf low
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000097 | tsf hi
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[  +0,000004] iwlwifi 0000:02:00.0: 0x0845CB55 | time gp2
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000000 | uCode revision type
[  +0,000004] iwlwifi 0000:02:00.0: 0x00000011 | uCode version major
[  +0,000003] iwlwifi 0000:02:00.0: 0xBFB58538 | uCode version minor
[  +0,000004] iwlwifi 0000:02:00.0: 0x00000144 | hw version
[  +0,000003] iwlwifi 0000:02:00.0: 0x40489204 | board version
[  +0,000003] iwlwifi 0000:02:00.0: 0x0000001C | hcmd
[  +0,000004] iwlwifi 0000:02:00.0: 0x00022002 | isr0
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000000 | isr1
[  +0,000003] iwlwifi 0000:02:00.0: 0x0000000A | isr2
[  +0,000003] iwlwifi 0000:02:00.0: 0x0041D4C0 | isr3
[  +0,000004] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000110 | last cmd Id
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[  +0,000004] iwlwifi 0000:02:00.0: 0x00000080 | l2p_control
[  +0,000003] iwlwifi 0000:02:00.0: 0x00010020 | l2p_duration
[  +0,000004] iwlwifi 0000:02:00.0: 0x0000003F | l2p_mhvalid
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000080 | l2p_addr_match
[  +0,000003] iwlwifi 0000:02:00.0: 0x00000005 | lmpm_pmg_sel
[  +0,000003] iwlwifi 0000:02:00.0: 0x15041745 | timestamp
[  +0,000004] iwlwifi 0000:02:00.0: 0x00348098 | flow_handler
[  +0,000066] iwlwifi 0000:02:00.0: Fseq Registers:
[  +0,000057] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ERROR_CODE
[  +0,000057] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_INIT_VERSION
[  +0,000056] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
[  +0,000056] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_OTP_VERSION
[  +0,000071] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_CONTENT_VERSION
[  +0,000069] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ALIVE_TOKEN
[  +0,000074] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVI_ID
[  +0,000074] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVR_ID
[  +0,000061] iwlwifi 0000:02:00.0: 0x00000000 | CNVI_AUX_MISC_CHIP
[  +0,000061] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_AUX_MISC_CHIP
[  +0,000059] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[  +0,000062] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[  +0,000073] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
[  +0,000008] ieee80211 phy0: Hardware restart was requested