watchdog: BUG: soft lockup - CPU#1 stuck for 152s! [kworker/1:2:1681] Modules linked in: irq event stamp: 3558353 hardirqs last enabled at (3558352): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] hardirqs last enabled at (3558352): [] _raw_spin_unlock_irqrestore+0x30/0x80 kernel/locking/spinlock.c:221 hardirqs last disabled at (3558353): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1062 softirqs last enabled at (3552286): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last enabled at (3552286): [] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline] softirqs last enabled at (3552286): [] keep_key_fresh drivers/net/wireguard/send.c:129 [inline] softirqs last enabled at (3552286): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last enabled at (3552286): [] wg_packet_tx_worker+0x25f/0x7e0 drivers/net/wireguard/send.c:276 softirqs last disabled at (3552301): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last disabled at (3552301): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last disabled at (3552301): [] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 CPU: 1 UID: 0 PID: 1681 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Workqueue: events_power_efficient wg_ratelimiter_gc_entries RIP: 0010:get_recursion_context kernel/events/internal.h:218 [inline] RIP: 0010:perf_swevent_get_recursion_context+0x98/0x100 kernel/events/core.c:11126 Code: 0f b6 dc 49 01 de 49 81 c6 e8 14 00 00 4d 89 f4 49 c1 ec 03 43 0f b6 04 3c 84 c0 75 3f 41 0f b6 2e 31 ff 89 ee e8 58 37 c2 ff <85> ed 74 0c e8 cf 33 c2 ff bb ff ff ff ff eb 12 e8 c3 33 c2 ff 43 RSP: 0018:ffffc90000a18250 EFLAGS: 00000246 RAX: ffffffff8205fcd8 RBX: 0000000000000001 RCX: ffff88802aa63e80 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000100 R09: 0000000000000000 R10: ffffc90000a18558 R11: ffffffff81b2e5b0 R12: 1ffff1100554ca6d R13: dffffc0000000000 R14: ffff88802aa65369 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888123baf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2de7f1 CR3: 000000000fb48000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: perf_trace_buf_alloc+0x43/0x280 kernel/trace/trace_event_perf.c:410 do_perf_trace_lock_acquire include/trace/events/lock.h:23 [inline] perf_trace_lock_acquire+0x1a6/0x440 include/trace/events/lock.h:23 __do_trace_lock_acquire include/trace/events/lock.h:23 [inline] trace_lock_acquire include/trace/events/lock.h:23 [inline] lock_acquire+0x303/0x350 kernel/locking/lockdep.c:5905 rcu_lock_acquire include/linux/rcupdate.h:309 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] class_rcu_constructor include/linux/rcupdate.h:1216 [inline] unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:409 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:426 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x321/0x600 mm/slub.c:5563 _kmalloc_noprof include/linux/slab.h:991 [inline] dst_cow_metrics_generic+0x56/0x1c0 net/core/dst.c:194 dst_metrics_write_ptr include/net/dst.h:136 [inline] dst_metric_set include/net/dst.h:197 [inline] icmp6_dst_alloc+0x265/0x430 net/ipv6/route.c:3365 ndisc_send_skb+0x42f/0x1650 net/ipv6/ndisc.c:492 addrconf_rs_timer+0x2d2/0x6c0 net/ipv6/addrconf.c:4073 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:arch_irqs_disabled_flags arch/x86/include/asm/irqflags.h:146 [inline] RIP: 0010:tracing_gen_ctx_flags include/linux/trace_events.h:202 [inline] RIP: 0010:tracing_gen_ctx include/linux/trace_events.h:211 [inline] RIP: 0010:perf_trace_buf_update+0x30/0x190 kernel/trace/trace_event_perf.c:429 Code: 57 41 56 41 54 53 89 f5 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 b0 99 f5 ff 9c 5e 45 31 f6 48 81 e6 00 02 00 00 41 0f 94 c6 <31> ff e8 59 9f f5 ff 44 89 f7 e8 01 2d fa ff 4c 8d 73 03 4c 89 f1 RSP: 0018:ffffc90005adf590 EFLAGS: 00000206 RAX: ffffffff81d29700 RBX: ffffe8ffffdd3000 RCX: ffff88802aa63e80 RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffe8ffffdd3000 RBP: 00000000000000ec R08: ffffc90005adf7cf R09: 0000000000000000 R10: ffffc90005adf7c0 R11: fffff52000b5befa R12: dffffc0000000000 R13: 00000000ffffffff R14: 0000000000000000 R15: dffffc0000000000 perf_tp_event+0x1fa/0x29d0 kernel/events/core.c:11512 perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:11445 do_perf_trace_lock include/trace/events/lock.h:49 [inline] perf_trace_lock+0x32e/0x410 include/trace/events/lock.h:49 __do_trace_lock_release include/trace/events/lock.h:68 [inline] trace_lock_release include/trace/events/lock.h:68 [inline] lock_release+0x396/0x3c0 kernel/locking/lockdep.c:5954 __raw_spin_unlock include/linux/spinlock_api_smp.h:199 [inline] _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:213 spin_unlock include/linux/spinlock.h:401 [inline] wg_ratelimiter_gc_entries+0x382/0x450 drivers/net/wireguard/ratelimiter.c:76 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 1351 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:csd_lock_wait kernel/smp.c:363 [inline] RIP: 0010:csd_lock kernel/smp.c:396 [inline] RIP: 0010:smp_call_function_many_cond+0x61e/0x1500 kernel/smp.c:944 Code: b6 04 04 84 c0 0f 85 d5 03 00 00 44 8b 3b 44 89 fe 83 e6 01 31 ff e8 01 59 0c 00 41 83 e7 01 75 07 e8 f6 53 0c 00 eb 3f f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 04 04 84 c0 75 0f f7 03 01 RSP: 0000:ffffc90006157720 EFLAGS: 00000293 RAX: ffffffff81bbdcde RBX: ffff8880b85414c8 RCX: ffff88804f07be80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90006157870 R08: ffff88804f07d41f R09: 1ffff11009e0fa83 R10: dffffc0000000000 R11: ffffffff8179fc60 R12: 1ffff110170a8299 R13: 0000000000000001 R14: ffff8880b85414c0 R15: 0000000000000001 FS: 00007fdca373e880(0000) GS:ffff888123aaf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005606cc899e70 CR3: 000000007e08c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline] flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline] flush_tlb_mm_range+0x8ff/0x1090 arch/x86/mm/tlb.c:1435 flush_tlb_page arch/x86/include/asm/tlbflush.h:352 [inline] ptep_clear_flush+0x120/0x170 mm/pgtable-generic.c:104 wp_page_copy mm/memory.c:4073 [inline] do_wp_page+0x3c5c/0x4b80 mm/memory.c:4472 handle_pte_fault mm/memory.c:6582 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0x15d7/0x3750 mm/memory.c:6876 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7fdca30b5dfe Code: 00 00 66 0f ef c0 41 0f 11 44 24 20 49 89 54 24 10 49 89 74 24 18 4c 89 66 10 4c 89 62 18 48 89 c2 48 83 ca 01 49 89 54 24 08 <49> 89 04 04 48 83 c4 10 5b 41 5c 41 5d c3 0f 1f 40 00 48 89 cf 48 RSP: 002b:00007ffd084d9e30 EFLAGS: 00010202 RAX: 0000000000007c30 RBX: 0000000000004f70 RCX: 00005606cc89a0d0 RDX: 0000000000007c31 RSI: 00007fdca31f1b20 RDI: 00005606cc894f00 RBP: 00007fdca31f1ac0 R08: 0000000000004f70 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00005606cc892240 R13: 00007fdca31f1ac0 R14: 0000000000004f70 R15: 00007fdca31f1ac0