This is still a problem with 5.16.0-0.rc2.18.fc36.x86_64+debug Downstream bug https://bugzilla.redhat.com/show_bug.cgi?id=2009750 Full dmesg https://bugzilla.redhat.com/attachment.cgi?id=1843093 [ 10.086769] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560 160MHz, REV=0x318 [ 10.103027] zram0: detected capacity change from 0 to 16777216 [ 10.106045] thermal thermal_zone6: failed to read out thermal zone (-61) [ 10.178076] iwlwifi 0000:00:14.3: base HW address: c8:e2:65:04:99:cb [ 10.205970] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040380 [ 10.229278] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver [ 10.233993] ============================= [ 10.233996] WARNING: suspicious RCU usage [ 10.233999] 5.16.0-0.rc2.18.fc36.x86_64+debug #1 Not tainted [ 10.234002] ----------------------------- [ 10.234004] drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c:264 suspicious rcu_dereference_protected() usage! [ 10.234008] other info that might help us debug this: [ 10.234010] rcu_scheduler_active = 2, debug_locks = 1 [ 10.234013] 3 locks held by modprobe/671: [ 10.234017] #0: ffffffffc0b2d0f0 (iwlwifi_opmode_table_mtx){+.+.}-{3:3}, at: iwl_opmode_register+0x2c/0xe0 [iwlwifi] [ 10.234055] #1: ffffffffa040dc10 (rtnl_mutex){+.+.}-{3:3}, at: iwl_op_mode_mvm_start+0xa49/0xcf0 [iwlmvm] [ 10.234096] #2: ffff9344c9f1b688 (&mvm->mutex){+.+.}-{3:3}, at: iwl_op_mode_mvm_start+0xa55/0xcf0 [iwlmvm] [ 10.234127] stack backtrace: [ 10.234130] CPU: 3 PID: 671 Comm: modprobe Not tainted 5.16.0-0.rc2.18.fc36.x86_64+debug #1 [ 10.234134] Hardware name: LENOVO 20QDS3E200/20QDS3E200, BIOS N2HET64W (1.47 ) 07/19/2021 [ 10.234137] Call Trace: [ 10.234140] <TASK> [ 10.234144] dump_stack_lvl+0x59/0x73 [ 10.234153] iwl_mvm_init_fw_regd+0x110/0x170 [iwlmvm] [ 10.234179] iwl_mvm_init_mcc+0x42/0x1b0 [iwlmvm] [ 10.234202] iwl_op_mode_mvm_start+0xc94/0xcf0 [iwlmvm] [ 10.234239] _iwl_op_mode_start.isra.0+0x3f/0x80 [iwlwifi] [ 10.234265] iwl_opmode_register+0x6f/0xe0 [iwlwifi] [ 10.234287] ? 0xffffffffc07df000 [ 10.234294] iwl_mvm_init+0x36/0x1000 [iwlmvm] [ 10.234316] do_one_initcall+0x64/0x350 [ 10.234323] ? rcu_read_lock_sched_held+0x3f/0x70 [ 10.234329] ? trace_kmalloc+0x38/0x100 [ 10.234333] ? kmem_cache_alloc_trace+0x1ee/0x3a0 [ 10.234345] do_init_module+0x5c/0x280 [ 10.234352] __do_sys_init_module+0x130/0x190 [ 10.234382] do_syscall_64+0x38/0x90 [ 10.234389] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 10.234394] RIP: 0033:0x7f761e21799e [ 10.234399] Code: 48 8b 0d 8d 74 0e 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 5a 74 0e 00 f7 d8 64 89 01 48 [ 10.234402] RSP: 002b:00007fff30183428 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 10.234408] RAX: ffffffffffffffda RBX: 000056233a3dbdb0 RCX: 00007f761e21799e [ 10.234411] RDX: 0000562338eeaa2a RSI: 00000000000fc6ee RDI: 000056233ae71200 [ 10.234413] RBP: 000056233ae71200 R08: 000056233a3ded20 R09: 00000000000fc010 [ 10.234416] R10: 0000000000000005 R11: 0000000000000246 R12: 0000562338eeaa2a [ 10.234419] R13: 000056233a3dbec0 R14: 000056233a3dbdb0 R15: 000056233a3dee30 [ 10.234445] </TASK> [ 10.238914] ------------[ cut here ]------------ [ 10.239002] WARNING: CPU: 4 PID: 671 at net/wireless/reg.c:3107 reg_process_self_managed_hint+0x198/0x1e0 [cfg80211] [ 10.239060] Modules linked in: snd_hda_intel kvm(+) snd_intel_dspcfg snd_intel_sdw_acpi irqbypass snd_hda_codec snd_hda_core rapl iwlmvm(+) snd_hwdep intel_cstate intel_uncore snd_seq snd_seq_device mac80211 snd_pcm think_lmi(+) btusb wmi_bmof firmware_attributes_class intel_wmi_thunderbolt libarc4 uvcvideo btrtl videobuf2_vmalloc btbcm videobuf2_memops snd_timer btintel videobuf2_v4l2 i2c_i801 processor_thermal_device_pci_legacy videobuf2_common i2c_smbus bluetooth processor_thermal_device iwlwifi thunderbolt videodev processor_thermal_rfim mei_me processor_thermal_mbox joydev mc mei idma64 ecdh_generic cfg80211 processor_thermal_rapl intel_rapl_common thinkpad_acpi intel_soc_dts_iosf intel_pch_thermal ledtrig_audio platform_profile rfkill snd int3403_thermal soundcore int340x_thermal_zone int3400_thermal acpi_pad acpi_thermal_rel acpi_tad zram ip_tables hid_multitouch i915 crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel e1000e nvme serio_raw nvme_core ucsi_acpi ttm [ 10.239244] typec_ucsi typec i2c_hid_acpi i2c_hid wmi video pinctrl_cannonlake ipmi_devintf ipmi_msghandler fuse [ 10.239270] CPU: 4 PID: 671 Comm: modprobe Not tainted 5.16.0-0.rc2.18.fc36.x86_64+debug #1 [ 10.239275] Hardware name: LENOVO 20QDS3E200/20QDS3E200, BIOS N2HET64W (1.47 ) 07/19/2021 [ 10.239278] RIP: 0010:reg_process_self_managed_hint+0x198/0x1e0 [cfg80211] [ 10.239341] Code: de 09 03 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 49 8d 7c 24 70 be ff ff ff ff e8 80 33 5f de 85 c0 0f 85 b8 fe ff ff <0f> 0b e9 b1 fe ff ff 0f 0b 80 3d b7 be 0b 00 00 0f 85 94 fe ff ff [ 10.239344] RSP: 0018:ffffab090191bc50 EFLAGS: 00010246 [ 10.239350] RAX: 0000000000000000 RBX: ffff9344c9f1b5e8 RCX: 0000000000000001 [ 10.239354] RDX: 0000000000000002 RSI: ffffffff9f809f4d RDI: ffffffff9f8a878e [ 10.239357] RBP: ffffab090191bcc8 R08: 000000026248c01c R09: 0000000000000000 [ 10.239360] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9344c9f18640 [ 10.239363] R13: ffff9344c9f1b5e8 R14: ffffab090191bd30 R15: ffff9344c9f1b5e0 [ 10.239366] FS: 00007f761e100740(0000) GS:ffff93482da00000(0000) knlGS:0000000000000000 [ 10.239370] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.239373] CR2: 00007f9b3bc6eed0 CR3: 000000010b688004 CR4: 00000000003706e0 [ 10.239376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.239379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.239382] Call Trace: [ 10.239386] <TASK> [ 10.239389] ? rcu_read_lock_sched_held+0x3f/0x70 [ 10.239413] regulatory_set_wiphy_regd_sync+0x31/0x90 [cfg80211] [ 10.239462] iwl_mvm_init_mcc+0xa9/0x1b0 [iwlmvm] [ 10.239494] iwl_op_mode_mvm_start+0xc94/0xcf0 [iwlmvm] [ 10.239534] _iwl_op_mode_start.isra.0+0x3f/0x80 [iwlwifi] [ 10.239560] iwl_opmode_register+0x6f/0xe0 [iwlwifi] [ 10.239582] ? 0xffffffffc07df000 [ 10.239619] iwl_mvm_init+0x36/0x1000 [iwlmvm] [ 10.239643] do_one_initcall+0x64/0x350 [ 10.239649] ? rcu_read_lock_sched_held+0x3f/0x70 [ 10.239654] ? trace_kmalloc+0x38/0x100 [ 10.239659] ? kmem_cache_alloc_trace+0x1ee/0x3a0 [ 10.239671] do_init_module+0x5c/0x280 [ 10.239679] __do_sys_init_module+0x130/0x190 [ 10.239709] do_syscall_64+0x38/0x90 [ 10.239717] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 10.239721] RIP: 0033:0x7f761e21799e [ 10.239726] Code: 48 8b 0d 8d 74 0e 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 5a 74 0e 00 f7 d8 64 89 01 48 [ 10.239730] RSP: 002b:00007fff30183428 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 10.239736] RAX: ffffffffffffffda RBX: 000056233a3dbdb0 RCX: 00007f761e21799e [ 10.239739] RDX: 0000562338eeaa2a RSI: 00000000000fc6ee RDI: 000056233ae71200 [ 10.239742] RBP: 000056233ae71200 R08: 000056233a3ded20 R09: 00000000000fc010 [ 10.239745] R10: 0000000000000005 R11: 0000000000000246 R12: 0000562338eeaa2a [ 10.239748] R13: 000056233a3dbec0 R14: 000056233a3dbdb0 R15: 000056233a3dee30 [ 10.239774] </TASK> [ 10.239777] irq event stamp: 157423 [ 10.239780] hardirqs last enabled at (157429): [<ffffffff9e178e10>] __up_console_sem+0x60/0x70 [ 10.239785] hardirqs last disabled at (157434): [<ffffffff9e178df5>] __up_console_sem+0x45/0x70 [ 10.239789] softirqs last enabled at (156456): [<ffffffff9e0f25b7>] __irq_exit_rcu+0x107/0x170 [ 10.239794] softirqs last disabled at (156427): [<ffffffff9e0f25b7>] __irq_exit_rcu+0x107/0x170 [ 10.239798] ---[ end trace 3d5bcc984dacd264 ]--- [ 10.252933] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
