So this is quite a bit more verbose with kernel 5.17.0-0.rc4.96.fc36.x86_64+debug. Is netconsole expected to work from a host with wifi? Snippet below, complete trace is at: https://bugzilla.redhat.com/attachment.cgi?id=1861614 [ 4970.929723] kernel: WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 4970.929726] kernel: 5.17.0-0.rc4.96.fc36.x86_64+debug #1 Tainted: G W --------- --- [ 4970.929728] kernel: ----------------------------------------------------- [ 4970.929729] kernel: modprobe/8230 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire: [ 4970.929734] kernel: ffff953c499b9070 (&fq->lock){+.-.}-{2:2}, at: ieee80211_xmit_fast+0x412/0xb90 [mac80211] [ 4970.929823] kernel: and this task is already holding: [ 4970.929824] kernel: ffffffffc1504618 (target_list_lock){....}-{2:2}, at: write_msg+0x48/0xf0 [netconsole] [ 4970.929834] kernel: which would create a new lock dependency: [ 4970.929835] kernel: (target_list_lock){....}-{2:2} -> (&fq->lock){+.-.}-{2:2} [ 4970.929840] kernel: but this new dependency connects a HARDIRQ-irq-safe lock: [ 4970.929841] kernel: (&ec->lock){-.-.}-{2:2} [ 4970.929842] kernel: ... which became HARDIRQ-irq-safe at: [ 4970.929844] kernel: lock_acquire+0xd0/0x2d0 [ 4970.929850] kernel: _raw_spin_lock_irqsave+0x4f/0x90 [ 4970.929855] kernel: acpi_ec_gpe_handler+0x1b/0x40 [ 4970.929860] kernel: acpi_ev_detect_gpe+0x15a/0x1a0 [ 4970.929864] kernel: acpi_ev_gpe_detect+0x10d/0x153 [ 4970.929866] kernel: acpi_ev_sci_xrupt_handler+0x36/0x6a [ 4970.929869] kernel: acpi_irq+0x15/0x40 [ 4970.929873] kernel: __handle_irq_event_percpu+0x90/0x330 [ 4970.929879] kernel: handle_irq_event+0x34/0x70 [ 4970.929883] kernel: handle_fasteoi_irq+0x90/0x1e0 [ 4970.929886] kernel: __common_interrupt+0x6e/0x150 [ 4970.929889] kernel: common_interrupt+0x5c/0xd0 [ 4970.929893] kernel: asm_common_interrupt+0x1e/0x40 [ 4970.929897] kernel: __do_softirq+0xcb/0x599 [ 4970.929901] kernel: __irq_exit_rcu+0xf3/0x170 [ 4970.929905] kernel: irq_exit_rcu+0xa/0x20 [ 4970.929908] kernel: sysvec_apic_timer_interrupt+0x9e/0xc0 [ 4970.929912] kernel: asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 4970.929916] kernel: _raw_spin_unlock_irqrestore+0x37/0x60 [ 4970.929919] kernel: prepare_to_wait_event+0x72/0x190 [ 4970.929924] kernel: ec_guard+0x154/0x1f0 [ 4970.929929] kernel: acpi_ec_transaction+0x17e/0x400 [ 4970.929933] kernel: acpi_ec_space_handler+0x117/0x270 [ 4970.929935] kernel: acpi_ev_address_space_dispatch+0x304/0x3ac [ 4970.929938] kernel: acpi_ex_access_region+0x449/0x4e8 [ 4970.929943] kernel: acpi_ex_field_datum_io+0x181/0x413 [ 4970.929947] kernel: acpi_ex_extract_from_field+0x152/0x2e2 [ 4970.929951] kernel: acpi_ex_read_data_from_field+0x303/0x34b [ 4970.929955] kernel: acpi_ex_resolve_node_to_value+0x366/0x480 [ 4970.929959] kernel: acpi_ex_resolve_to_value+0x407/0x49b [ 4970.929963] kernel: acpi_ds_evaluate_name_path+0x9a/0x13c [ 4970.929965] kernel: acpi_ds_exec_end_op+0x111/0x7b1 [ 4970.929968] kernel: acpi_ps_parse_loop+0x7ab/0x86a [ 4970.929972] kernel: acpi_ps_parse_aml+0x2db/0x57e [ 4970.929976] kernel: acpi_ps_execute_method+0x237/0x2ef [ 4970.929980] kernel: acpi_ns_evaluate+0x341/0x4e3 [ 4970.929983] kernel: acpi_ut_evaluate_object+0xb1/0x24d [ 4970.929986] kernel: acpi_ut_execute_STA+0x45/0xf4 [ 4970.929989] kernel: acpi_ns_get_device_callback+0x74/0x160 [ 4970.929993] kernel: acpi_ns_walk_namespace+0x137/0x29e [ 4970.929996] kernel: acpi_get_devices+0xd1/0x10c [ 4970.930000] kernel: pnpacpi_init+0x4b/0x6a [ 4970.930005] kernel: do_one_initcall+0x66/0x350 [ 4970.930009] kernel: kernel_init_freeable+0x28e/0x2cf [ 4970.930013] kernel: kernel_init+0x16/0x130 [ 4970.930015] kernel: ret_from_fork+0x1f/0x30 [ 4970.930019] kernel: to a HARDIRQ-irq-unsafe lock: [ 4970.930020] kernel: (&fq->lock){+.-.}-{2:2} [ 4970.930022] kernel: ... which became HARDIRQ-irq-unsafe at: [ 4970.930023] kernel: ... [ 4970.930024] kernel: lock_acquire+0xd0/0x2d0 [ 4970.930027] kernel: _raw_spin_lock_bh+0x38/0x80 [ 4970.930030] kernel: ieee80211_get_txq_stats+0x49/0x190 [mac80211] [ 4970.930097] kernel: rdev_get_txq_stats+0x50/0x130 [cfg80211] [ 4970.930164] kernel: nl80211_send_iface+0x38c/0x9d0 [cfg80211] [ 4970.930221] kernel: nl80211_notify_iface+0x48/0xa0 [cfg80211] [ 4970.930279] kernel: cfg80211_register_netdevice+0x7c/0xf0 [cfg80211] [ 4970.930328] kernel: ieee80211_if_add+0x4eb/0x820 [mac80211] [ 4970.930403] kernel: ieee80211_register_hw+0xc93/0xcb0 [mac80211] [ 4970.930459] kernel: iwl_mvm_mac_setup_register+0xb41/0xc90 [iwlmvm] [ 4970.930482] kernel: iwl_mvm_start_post_nvm+0x4f/0xd0 [iwlmvm] [ 4970.930501] kernel: iwl_op_mode_mvm_start+0xb0e/0xb80 [iwlmvm] [ 4970.930521] kernel: _iwl_op_mode_start+0x98/0xc0 [iwlwifi] [ 4970.930546] kernel: iwl_opmode_register+0x6a/0xd0 [iwlwifi] [ 4970.930568] kernel: tcc_get_cur_state+0x24/0x40 [intel_tcc_cooling] [ 4970.930572] kernel: do_one_initcall+0x66/0x350 [ 4970.930576] kernel: do_init_module+0x4a/0x260 [ 4970.930580] kernel: __do_sys_init_module+0x13a/0x190 [ 4970.930583] kernel: do_syscall_64+0x37/0x80 [ 4970.930587] kernel: entry_SYSCALL_64_after_hwframe+0x44/0xae [ 4970.930591] kernel: other info that might help us debug this: [ 4970.930592] kernel: Chain exists of:
