============================= WARNING: suspicious RCU usage 5.10.109 #1 Not tainted ----------------------------- net/mac80211/tx.c:615 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 3 locks held by kworker/u4:4/8930: #0: ffff88801cca6938 ((wq_completion)phy23){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff88801cca6938 ((wq_completion)phy23){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff88801cca6938 ((wq_completion)phy23){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff88801cca6938 ((wq_completion)phy23){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff88801cca6938 ((wq_completion)phy23){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff88801cca6938 ((wq_completion)phy23){+.+.}-{0:0}, at: process_one_work+0x8ac/0x1590 kernel/workqueue.c:2250 #1: ffff888047ae7da8 ((work_completion)(&(&data->hw_scan)->work)){+.+.}-{0:0}, at: process_one_work+0x8df/0x1590 kernel/workqueue.c:2254 #2: ffff88801eae58b8 (&data->mutex){+.+.}-{3:3}, at: hw_scan_work+0xa4/0xae0 drivers/net/wireless/mac80211_hwsim.c:2220 stack backtrace: CPU: 0 PID: 8930 Comm: kworker/u4:4 Not tainted 5.10.109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Workqueue: phy23 hw_scan_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 ieee80211_tx_h_select_key+0x1139/0x1730 net/mac80211/tx.c:615 invoke_tx_handlers_early+0xa6f/0x2570 net/mac80211/tx.c:1786 invoke_tx_handlers net/mac80211/tx.c:1849 [inline] ieee80211_tx_prepare_skb+0x1a6/0x440 net/mac80211/tx.c:1872 hw_scan_work+0x50a/0xae0 drivers/net/wireless/mac80211_hwsim.c:2267 process_one_work+0x9a9/0x1590 kernel/workqueue.c:2279 worker_thread+0x61d/0x1310 kernel/workqueue.c:2425 kthread+0x38f/0x470 kernel/kthread.c:313 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:296 tmpfs: Unsupported parameter 'huge' EXT4-fs (loop1): Unrecognized mount option "" or missing value EXT4-fs (loop1): Unrecognized mount option "" or missing value FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) EXT4-fs (loop7): Unrecognized mount option "nomQ wpW-9!F̏A-k(Lv;ȖH2;+-Y7z&j.A)@7"f3)s/JS)v\%uaFFMqBVwIXB'we &:ş)" or missing value