[Bug 296953] iwlwifi crashed at RX BA restart

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 21 Aug 2026 19:43:01 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=296953

--- Comment #4 from Nuno Teixeira <eduardo@FreeBSD.org> ---
Hello,

As I stated in
https://lists.freebsd.org/archives/freebsd-wireless/2026-August/004383.html ,
my AX201 crashes almost instantly when fetching go modules from ports and this
patch doesn't solve it. Connection crash info is bellow.

Note: My extended tests on net-p2p/rtorrent involves downloading around 20+
torrents with a total 70+ GB with no problem at all.

The positive part of this is that I can reproduce it ver easely :) 


e.g.:

# cd /usr/ports/sysutils/restic
# make distclean fetch
(repeat until crash)

My setup:

main-n288444-850203655b7d-dirty (patch 296953)

wlans_iwlwifi0="wlan0"
ifconfig_wlan0="WPA SYNCDHCP"
create_args_wlan0="country PT regdomain ETSI"

```
Aug 21 20:27:07 leg kernel: iwlwifi0: Error sending SCAN_CFG_CMD: time out
after 2000ms.
Aug 21 20:27:07 leg kernel: iwlwifi0: Current CMD queue read_ptr 141 write_ptr
142
Aug 21 20:27:07 leg kernel: iwlwifi0: Start IWL Error Log Dump:
Aug 21 20:27:07 leg kernel: iwlwifi0: Transport status: 0x0000004A, valid: 6
Aug 21 20:27:07 leg kernel: iwlwifi0: Loaded firmware version: 77.f39cc7f9.0
QuZ-a0-hr-b0-77.ucode
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x0080A210 | trm_hw_status0
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | trm_hw_status1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x004C972E | branchlink2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x004BF5DA | interruptlink1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x004BF5DA | interruptlink2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00014F64 | data1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x01000000 | data2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | data3
Aug 21 20:27:07 leg kernel: iwlwifi0: 0xDD80F269 | beacon time
Aug 21 20:27:07 leg kernel: iwlwifi0: 0xB7E38DB4 | tsf low
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x000006D7 | tsf hi
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | time gp1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x05A671AE | time gp2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000001 | uCode revision type
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x0000004D | uCode version major
Aug 21 20:27:07 leg kernel: iwlwifi0: 0xF39CC7F9 | uCode version minor
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000351 | hw version
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00C89001 | board version
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x8032F400 | hcmd
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x24020000 | isr0
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x01400000 | isr1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x08F00002 | isr2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00C3018C | isr3
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | isr4
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x032E001C | last cmd Id
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00014F64 | wait_event
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000080 | l2p_control
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00010034 | l2p_duration
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x0000003F | l2p_mhvalid
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x000000CE | l2p_addr_match
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000009 | lmpm_pmg_sel
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | timestamp
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000808 | flow_handler
Aug 21 20:27:07 leg kernel: iwlwifi0: Start IWL Error Log Dump:
Aug 21 20:27:07 leg kernel: iwlwifi0: Transport status: 0x0000004A, valid: 7
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x20000066 | NMI_INTERRUPT_HOST
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | umac branchlink1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x804561F6 | umac branchlink2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x8047378E | umac interruptlink1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x8047378E | umac interruptlink2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x01000000 | umac data1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x8047378E | umac data2
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | umac data3
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x0000004D | umac major
Aug 21 20:27:07 leg kernel: iwlwifi0: 0xF39CC7F9 | umac minor
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x05A671AC | frame pointer
Aug 21 20:27:07 leg kernel: iwlwifi0: 0xC0886260 | stack pointer
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x008D010C | last host cmd
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000000 | isr status reg
Aug 21 20:27:07 leg kernel: iwlwifi0: IML/ROM dump:
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000003 | IML/ROM error/state
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00005758 | IML/ROM data1
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000080 | IML/ROM WFPM_AUTH_KEY_0
Aug 21 20:27:07 leg kernel: iwlwifi0: Fseq Registers:
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x60000000 | FSEQ_ERROR_CODE
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x80290033 | FSEQ_TOP_INIT_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00090006 | FSEQ_CNVIO_INIT_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x0000A481 | FSEQ_OTP_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00000003 | FSEQ_TOP_CONTENT_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x4552414E | FSEQ_ALIVE_TOKEN
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x20000302 | FSEQ_CNVI_ID
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x01300504 | FSEQ_CNVR_ID
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x20000302 | CNVI_AUX_MISC_CHIP
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x01300504 | CNVR_AUX_MISC_CHIP
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x05B0905B |
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x0000025B |
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00090006 | FSEQ_PREV_CNVIO_INIT_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00290033 | FSEQ_WIFI_FSEQ_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x00290033 | FSEQ_BT_FSEQ_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: 0x000000D4 | FSEQ_CLASS_TP_VERSION
Aug 21 20:27:07 leg kernel: iwlwifi0: UMAC CURRENT PC: 0x8047329c
Aug 21 20:27:07 leg kernel: iwlwifi0: LMAC1 CURRENT PC: 0xd0
Aug 21 20:27:07 leg kernel: iwlwifi0: WRT: Collecting data: ini trigger 4 fired
(delay=0ms).
Aug 21 20:27:08 leg kernel: iwlwifi0: HCMD_ACTIVE already clear for command
SCAN_CFG_CMD
Aug 21 20:27:09 leg kernel: iwlwifi0: Device error - SW reset
Aug 21 20:27:15 leg kernel: iwlwifi0: Queue 2 is stuck 6 231
Aug 21 20:27:16 leg kernel: iwlwifi0: Queue 3 is stuck 45 47
Aug 21 20:28:31 leg ntpd[6255]: error resolving pool 0.freebsd.pool.ntp.org:
Name could not be resolved at this time (2)
Aug 21 20:29:02 leg ntpd[6255]: error resolving pool 2.freebsd.pool.ntp.org:
Name could not be resolved at this time (2)

```

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