watchdog: BUG: soft lockup - CPU#0 stuck for 117s! [kworker/0:3:1292] Modules linked in: irq event stamp: 117872 hardirqs last enabled at (117871): [] ___slab_alloc+0xd12/0xe10 mm/slub.c:2963 hardirqs last disabled at (117872): [] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1096 softirqs last enabled at (117850): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (117850): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:736 [inline] softirqs last enabled at (117850): [] nsim_dev_trap_report_work+0x780/0xab0 drivers/net/netdevsim/dev.c:762 softirqs last disabled at (117848): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (117848): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:732 [inline] softirqs last disabled at (117848): [] nsim_dev_trap_report_work+0x6d6/0xab0 drivers/net/netdevsim/dev.c:762 CPU: 0 PID: 1292 Comm: kworker/0:3 Not tainted 5.15.162-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events nsim_dev_trap_report_work RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:64 Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 RSP: 0018:ffffc90005b8fa68 EFLAGS: 00010246 RAX: ffff888019784000 RBX: 0000000000000000 RCX: 0000000000000f80 RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff888019784080 RBP: ffffc90005b8faf0 R08: ffffc90005b8faf0 R09: ffff888019784000 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: 0000000000082a20 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6be104bd78 CR3: 00000000666a2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: slab_post_alloc_hook+0x73/0x380 mm/slab.h:521 slab_alloc_node mm/slub.c:3220 [inline] __kmalloc_node_track_caller+0x14d/0x390 mm/slub.c:4958 kmalloc_reserve net/core/skbuff.c:356 [inline] __alloc_skb+0x12c/0x590 net/core/skbuff.c:427 alloc_skb include/linux/skbuff.h:1167 [inline] nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:664 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:721 [inline] nsim_dev_trap_report_work+0x25e/0xab0 drivers/net/netdevsim/dev.c:762 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3837 Comm: kworker/1:10 Not tainted 5.15.162-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events bpf_prog_free_deferred RIP: 0010:rcu_is_watching+0x40/0xa0 kernel/rcu/tree.c:1123 Code: 73 72 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 00 18 36 8c 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 30 17 5f 00 <48> c7 c3 08 b3 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 RSP: 0018:ffffc90000dd0b20 EFLAGS: 00000046 RAX: 1ffffffff186c301 RBX: 0000000000000001 RCX: ffffffff8162aa3c RDX: 0000000000000000 RSI: ffffffff8ad8f660 RDI: ffffffff8ad8f620 RBP: ffffc90000dd0ca0 R08: dffffc0000000000 R09: fffffbfff1bc8e76 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920001ba170 R13: dffffc0000000000 R14: ffffffff8c361808 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055aa25bf1f08 CR3: 0000000068fc2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0xdd/0x4f0 kernel/locking/lockdep.c:5594 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:312 rcu_read_lock include/linux/rcupdate.h:739 [inline] advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1750 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline] RIP: 0010:smp_call_function_many_cond+0xa93/0xd90 kernel/smp.c:969 Code: 04 03 84 c0 0f 85 84 00 00 00 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 5c cf 0b 00 41 83 e7 01 75 07 e8 f1 cb 0b 00 eb 41 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 45 00 RSP: 0018:ffffc90005417880 EFLAGS: 00000293 RAX: ffffffff81748f94 RBX: 1ffff11017348509 RCX: ffff88807c990000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900054179b0 R08: ffffffff81748f64 R09: fffffbfff1f7f219 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff8880b9a42848 R14: ffff8880b9b3b3c0 R15: 0000000000000001 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135 on_each_cpu include/linux/smp.h:71 [inline] flush_tlb_kernel_range+0x197/0x230 arch/x86/mm/tlb.c:1033 __purge_vmap_area_lazy+0x15ae/0x1740 mm/vmalloc.c:1704 _vm_unmap_aliases+0x453/0x4e0 mm/vmalloc.c:2107 vm_remove_mappings mm/vmalloc.c:2584 [inline] __vunmap+0x72e/0xa20 mm/vmalloc.c:2611 bpf_jit_binary_free kernel/bpf/core.c:914 [inline] bpf_jit_free+0x92/0x180 kernel/bpf/core.c:927 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300