BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 16, name: ksoftirqd/0 preempt_count: 100, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by ksoftirqd/0/16: #0: ffffffff8e937e60 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937e60 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2561 [inline] #0: ffffffff8e937e60 (rcu_callback){....}-{0:0}, at: rcu_core+0xa37/0x17a0 kernel/rcu/tree.c:2823 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:395 [inline] [] handle_softirqs+0x122/0x980 kernel/softirq.c:530 CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc6-syzkaller-00203-g5b366eae7193 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 __might_resched+0x5d4/0x780 kernel/sched/core.c:8653 percpu_down_read include/linux/percpu-rwsem.h:49 [inline] cpus_read_lock+0x1b/0x150 kernel/cpu.c:490 __static_key_slow_dec kernel/jump_label.c:320 [inline] static_key_slow_dec+0x49/0xa0 kernel/jump_label.c:336 nf_tables_chain_destroy+0x3c4/0x4f0 net/netfilter/nf_tables_api.c:2160 __nft_release_basechain_now net/netfilter/nf_tables_api.c:11442 [inline] nft_release_basechain_rcu+0x3fc/0x550 net/netfilter/nf_tables_api.c:11454 rcu_do_batch kernel/rcu/tree.c:2567 [inline] rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ================================ WARNING: inconsistent lock state 6.12.0-rc6-syzkaller-00203-g5b366eae7193 #0 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-R} usage. ksoftirqd/0/16 [HC0[0]:SC1[1]:HE1:SE0] takes: ffffffff8e7d1d90 (cpu_hotplug_lock){+++?}-{0:0}, at: __static_key_slow_dec kernel/jump_label.c:320 [inline] ffffffff8e7d1d90 (cpu_hotplug_lock){+++?}-{0:0}, at: static_key_slow_dec+0x49/0xa0 kernel/jump_label.c:336 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 percpu_down_write+0x54/0x310 kernel/locking/percpu-rwsem.c:229 cpus_write_lock kernel/cpu.c:508 [inline] _cpu_up+0x76/0x580 kernel/cpu.c:1638 cpu_up+0x184/0x230 kernel/cpu.c:1722 cpuhp_bringup_mask+0xdf/0x260 kernel/cpu.c:1788 cpuhp_bringup_cpus_parallel+0xaf/0x160 kernel/cpu.c:1866 bringup_nonboot_cpus+0x2b/0x50 kernel/cpu.c:1892 smp_init+0x34/0x150 kernel/smp.c:1009 kernel_init_freeable+0x417/0x5d0 init/main.c:1572 kernel_init+0x1d/0x2b0 init/main.c:1469 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 irq event stamp: 1161634 hardirqs last enabled at (1161634): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (1161633): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (1161438): [] run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 softirqs last disabled at (1161447): [] run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(cpu_hotplug_lock); lock(cpu_hotplug_lock); *** DEADLOCK *** 1 lock held by ksoftirqd/0/16: #0: ffffffff8e937e60 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937e60 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2561 [inline] #0: ffffffff8e937e60 (rcu_callback){....}-{0:0}, at: rcu_core+0xa37/0x17a0 kernel/rcu/tree.c:2823 stack backtrace: CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Tainted: G W 6.12.0-rc6-syzkaller-00203-g5b366eae7193 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_usage_bug+0x62e/0x8b0 kernel/locking/lockdep.c:4038 valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4052 mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4263 mark_lock+0x223/0x360 kernel/locking/lockdep.c:4725 __lock_acquire+0xbf9/0x2050 kernel/locking/lockdep.c:5156 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] cpus_read_lock+0x42/0x150 kernel/cpu.c:490 __static_key_slow_dec kernel/jump_label.c:320 [inline] static_key_slow_dec+0x49/0xa0 kernel/jump_label.c:336 nf_tables_chain_destroy+0x3c4/0x4f0 net/netfilter/nf_tables_api.c:2160 __nft_release_basechain_now net/netfilter/nf_tables_api.c:11442 [inline] nft_release_basechain_rcu+0x3fc/0x550 net/netfilter/nf_tables_api.c:11454 rcu_do_batch kernel/rcu/tree.c:2567 [inline] rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 BUG: scheduling while atomic: ksoftirqd/0/16/0x00000101 INFO: lockdep is turned off. Modules linked in: Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:395 [inline] [] handle_softirqs+0x122/0x980 kernel/softirq.c:530