[Bug 263613] iwlwifi0 on framework laptop crashes (kernel panic) when setting IP

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263613

--- Comment #34 from Gleb Popov <arrowd@FreeBSD.org> ---
It started working for me! I'm writing this comment while being connected via
iwlwifi.

The "service netif restart" stopped panicing too, however it spits the
following messages:

Oct 29 20:32:53 sbreeze kernel: wlan0: link state changed to DOWN
Oct 29 20:32:53 sbreeze kernel: iwlwifi0: Couldn't drain frames for staid 0,
status 0x8
Oct 29 20:32:53 sbreeze kernel: iwlwifi0: lkpi_sta_run_to_init:1954:
mo_sta_state(NOTEXIST) failed: -5
Oct 29 20:32:53 sbreeze kernel: iwlwifi0: lkpi_iv_newstate: error -5 during
state transition 5 (RUN) -> 0 (INIT)
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Microcode SW error detected. 
Restarting 0x2000000.
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Start IWL Error Log Dump:
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Transport status: 0x0000004B, valid:
6
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Loaded firmware version:
29.4063824552.0 7265D-29.ucode
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00003418 | ADVANCED_SYSASSERT       
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000220 | trm_hw_status0
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | trm_hw_status1
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00043D6C | branchlink2
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x0004B002 | interruptlink1
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | interruptlink2
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0xDEADBEEF | data1
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0xDEADBEEF | data2
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0xDEADBEEF | data3
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x210046B6 | beacon time
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0xD39E294A | tsf low
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000135 | tsf hi
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | time gp1
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x014E3B60 | time gp2
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000001 | uCode revision type
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x0000001D | uCode version major
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0xF2390AA8 | uCode version minor
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000210 | hw version
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00489200 | board version
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x005C0128 | hcmd
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x24022080 | isr0
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | isr1
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000002 | isr2
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x004150C0 | isr3
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | isr4
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x005B0118 | last cmd Id
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | wait_event
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x000000D4 | l2p_control
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00018010 | l2p_duration
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000007 | l2p_mhvalid
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | l2p_addr_match
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000005 | lmpm_pmg_sel
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x03031934 | timestamp
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x0000C0C8 | flow_handler
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Fseq Registers:
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_ERROR_CODE
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_TOP_INIT_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_OTP_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_TOP_CONTENT_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_ALIVE_TOKEN
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_CNVI_ID
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_CNVR_ID
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | CNVI_AUX_MISC_CHIP
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | CNVR_AUX_MISC_CHIP
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 |
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 |
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 |
FSEQ_PREV_CNVIO_INIT_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_WIFI_FSEQ_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_BT_FSEQ_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: 0x00000000 | FSEQ_CLASS_TP_VERSION
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Collecting data: trigger 2 fired.
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: FW error in SYNC CMD MAC_CONTEXT_CMD
Oct 29 20:32:54 sbreeze kernel: #0 0xffffffff80a5fb9b at linux_dump_stack+0x1b
Oct 29 20:32:54 sbreeze kernel: #1 0xffffffff82cf6773 at
iwl_trans_txq_send_hcmd+0x3f3
Oct 29 20:32:54 sbreeze kernel: #2 0xffffffff82c9229e at
iwl_trans_send_cmd+0xce
Oct 29 20:32:54 sbreeze kernel: #3 0xffffffff82cd5319 at
iwl_mvm_send_cmd_pdu+0x49
Oct 29 20:32:54 sbreeze kernel: #4 0xffffffff82ca27ba at
iwl_mvm_mac_ctxt_remove+0x7a
Oct 29 20:32:54 sbreeze kernel: #5 0xffffffff82cadbcc at
iwl_mvm_mac_remove_interface+0x1ec
Oct 29 20:32:54 sbreeze kernel: #6 0xffffffff80a59cae at
lkpi_80211_mo_remove_interface+0x8e
Oct 29 20:32:54 sbreeze kernel: #7 0xffffffff80a555a6 at
lkpi_ic_vap_delete+0xd6
Oct 29 20:32:54 sbreeze kernel: #8 0xffffffff8095f362 at
wlan_clone_destroy+0x12
Oct 29 20:32:54 sbreeze kernel: #9 0xffffffff80914811 at if_clone_destroy+0x91
Oct 29 20:32:54 sbreeze kernel: #10 0xffffffff80910719 at ifioctl+0x899
Oct 29 20:32:54 sbreeze kernel: #11 0xffffffff8085ad45 at kern_ioctl+0x255
Oct 29 20:32:54 sbreeze kernel: #12 0xffffffff8085aa83 at sys_ioctl+0x123
Oct 29 20:32:54 sbreeze kernel: #13 0xffffffff80c21eb9 at amd64_syscall+0x109
Oct 29 20:32:54 sbreeze kernel: #14 0xffffffff80bf77bb at
fast_syscall_common+0xf8
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Failed to send MAC_CONTEXT_CMD
(action:3): -5
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Failed to disable queue 1 (ret=-5)
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Failed to remove station. Id=1
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Failed sending remove station
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: Applying debug destination
EXTERNAL_DRAM
Oct 29 20:32:54 sbreeze syslogd: last message repeated 1 times
Oct 29 20:32:54 sbreeze kernel: iwlwifi0: FW already configured (0) -
re-configuring
Oct 29 20:32:54 sbreeze kernel: WARNING !!!(({ __typeof(((volatile const
unsigned long *)(&mvm->status))[((IWL_MVM_STATUS_IN_HW_RESTART) / 64)]) __var =
({ __asm__ __volatile__("": : :"memory"); (*(const volatile __typeof(((volatile
const unsigned long *)(&mvm->status))[((IWL_MVM_STATUS_IN_HW_RESTART) / 64)])
*)&(((volatile const unsigned long
*)(&mvm->status))[((IWL_MVM_STATUS_IN_HW_RESTART) / 64)])); }); __asm__
__volatile__("": : :"memory"); __var; }) & (1UL <<
((IWL_MVM_STATUS_IN_HW_RESTART) & (64 - 1)))) && ctxt->ref failed at
/usr/src/sys/contrib/dev/iwlwifi/mvm/phy-ctxt.c:269
Oct 29 20:32:54 sbreeze kernel: wlan0: Ethernet address: 9c:da:3e:77:91:d3
Oct 29 20:32:56 sbreeze kernel: wlan0: link state changed to UP

I will keep running iwlwifi on my laptop and will report back any issues I'll
encounter. Thanks again for the great work!

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