watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/1:3:5144] Modules linked in: irq event stamp: 583835 hardirqs last enabled at (583834): [] get_random_u32+0x586/0x7e0 drivers/char/random.c:532 hardirqs last disabled at (583835): [] sysvec_apic_timer_interrupt+0xe/0xb0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (573260): [] nf_conntrack_free+0x230/0x460 net/netfilter/nf_conntrack_core.c:1684 softirqs last disabled at (573585): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (573585): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (573585): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last disabled at (573585): [] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649 CPU: 1 PID: 5144 Comm: kworker/1:3 Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events_power_efficient gc_worker RIP: 0010:stack_access_ok+0xf9/0x270 arch/x86/kernel/unwind_orc.c:398 Code: 00 00 48 8b 73 28 48 89 da 48 89 ef e8 50 bd f3 ff 31 ff 41 89 c6 89 c6 e8 c4 52 52 00 45 85 f6 74 1e 45 31 f6 e8 b7 57 52 00 <44> 89 f0 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 7c 6b d3 09 RSP: 0018:ffffc90000a18380 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90000a18448 RCX: ffffffff813cd516 RDX: ffff888064f5bc00 RSI: ffffffff813cd579 RDI: 0000000000000005 RBP: ffffc90002f6fc98 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000005 R12: ffffc90000a18450 R13: ffffc90000a18458 R14: 0000000000000001 R15: ffffc90002f70000 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200c9000 CR3: 0000000020ad2000 CR4: 0000000000350ef0 Call Trace: deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline] unwind_next_frame+0x1b94/0x23a0 arch/x86/kernel/unwind_orc.c:648 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4002 [inline] kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4009 fill_pool+0x26b/0x5d0 lib/debugobjects.c:168 debug_objects_fill_pool lib/debugobjects.c:615 [inline] debug_object_assert_init+0x147/0x370 lib/debugobjects.c:893 debug_timer_assert_init kernel/time/timer.c:846 [inline] debug_assert_init kernel/time/timer.c:891 [inline] __mod_timer+0xae/0xdc0 kernel/time/timer.c:1072 addrconf_mod_rs_timer net/ipv6/addrconf.c:328 [inline] addrconf_rs_timer+0x5f2/0x850 net/ipv6/addrconf.c:4049 call_timer_fn+0x1a3/0x610 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers+0x74b/0xaf0 kernel/time/timer.c:2417 __run_timer_base kernel/time/timer.c:2428 [inline] __run_timer_base kernel/time/timer.c:2421 [inline] run_timer_base+0x111/0x190 kernel/time/timer.c:2437 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447 handle_softirqs+0x219/0x8f0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:227 [inline] RIP: 0010:nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:345 [inline] RIP: 0010:gc_worker+0x2e1/0x1770 net/netfilter/nf_conntrack_core.c:1488 Code: 00 00 48 c7 c7 88 bd e5 8f e8 bb c1 62 f8 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 79 d3 84 f8 48 85 db 58 0f 85 3d 10 00 00 3a d8 84 f8 eb 07 e8 33 d8 84 f8 f3 90 44 8b 35 7a 68 db 06 31 RSP: 0018:ffffc90002f6fbc8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff890a60c1 RDX: ffff888064f5bc00 RSI: ffffffff890a60d0 RDI: 0000000000000007 RBP: ffff88802b000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: 000000000000530b R13: dffffc0000000000 R14: 000000000000a615 R15: 0000000000040000 process_one_work+0x9c8/0x1b40 kernel/workqueue.c:3248 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x6c8/0xf30 kernel/workqueue.c:3409 kthread+0x2c4/0x3a0 kernel/kthread.c:389 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2433 Comm: kworker/u8:7 Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200 Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 e9 f4 13 81 09 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 48 8b 15 c4 ab 74 7e 65 8b 05 c5 ab 74 7e a9 00 01 RSP: 0018:ffffc90009127900 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff8880b9344900 RCX: ffffffff8182f4db RDX: ffff88802a84da00 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000006 R12: ffffed1017268921 R13: 0000000000000001 R14: ffff8880b9344908 R15: ffff8880b923fd80 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68a1435000 CR3: 000000000d97a000 CR4: 0000000000350ef0 Call Trace: rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline] cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] csd_lock_wait kernel/smp.c:311 [inline] smp_call_function_many_cond+0x4e5/0x1420 kernel/smp.c:855 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2069 [inline] text_poke_bp_batch+0x659/0x760 arch/x86/kernel/alternative.c:2279 text_poke_flush arch/x86/kernel/alternative.c:2470 [inline] text_poke_flush arch/x86/kernel/alternative.c:2467 [inline] text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2477 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x1d7/0x400 kernel/jump_label.c:882 static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 toggle_allocation_gate mm/kfence/core.c:826 [inline] toggle_allocation_gate+0xf8/0x250 mm/kfence/core.c:818 process_one_work+0x9c8/0x1b40 kernel/workqueue.c:3248 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x6c8/0xf30 kernel/workqueue.c:3409 kthread+0x2c4/0x3a0 kernel/kthread.c:389 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244