watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [kworker/1:4:971] Modules linked in: CPU: 1 PID: 971 Comm: kworker/1:4 Not tainted 6.1.99-syzkaller-00049-g1fe91f863a7f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events pcpu_balance_workfn RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline] RIP: 0010:smp_call_function_many_cond+0x851/0x930 kernel/smp.c:998 Code: 3e 44 89 fe 83 e6 01 31 ff e8 fb 9e 09 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 0a e8 36 9b 09 00 e9 2f ff ff ff f3 90 <42> 0f b6 04 3b 84 c0 75 14 41 f7 06 01 00 00 00 0f 84 12 ff ff ff RSP: 0018:ffffc900018b7b20 EFLAGS: 00000293 RAX: ffffffff816c082c RBX: 1ffff1103edc7a99 RCX: ffff888113d4e540 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900018b7c38 R08: ffffffff816c07f5 R09: ffffc900018b7a60 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000800000000 R14: ffff8881f6e3d4c8 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f433c129ed0 CR3: 000000011ecc5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166 on_each_cpu include/linux/smp.h:71 [inline] flush_tlb_kernel_range+0x49/0x210 arch/x86/mm/tlb.c:1050 pcpu_post_unmap_tlb_flush mm/percpu-vm.c:188 [inline] pcpu_reclaim_populated mm/percpu.c:2209 [inline] pcpu_balance_workfn+0x55e/0xe60 mm/percpu.c:2245 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3113 Comm: syz.4.761 Not tainted 6.1.99-syzkaller-00049-g1fe91f863a7f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:1058 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d 6a 05 51 04 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0018:ffffc900092e71a0 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff9200125ce38 RCX: ffffffff85205a0c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88812e2e1960 RBP: ffffc900092e7250 R08: dffffc0000000000 R09: ffffed1025c5c32d R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812e2e1960 R14: 0000000000000003 R15: 1ffff9200125ce3c FS: 00007f3ddd3d46c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3ddd3d3f98 CR3: 0000000112384000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 00000000200002c0 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 trie_delete_elem+0x94/0x760 kernel/bpf/lpm_trie.c:451 bpf_prog_d46ba5bef82912c0+0x3d/0x41 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline] bpf_trace_run2+0x133/0x290 kernel/trace/bpf_trace.c:2312 __bpf_trace_contention_end+0xb/0x10 include/trace/events/lock.h:122 trace_contention_end include/trace/events/lock.h:122 [inline] __pv_queued_spin_lock_slowpath+0xd59/0xda0 kernel/locking/qspinlock.c:560 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 trie_delete_elem+0x94/0x760 kernel/bpf/lpm_trie.c:451 bpf_prog_d46ba5bef82912c0+0x3d/0x41 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline] bpf_trace_run10+0x246/0x390 kernel/trace/bpf_trace.c:2320 __bpf_trace_percpu_alloc_percpu+0x4d/0x60 include/trace/events/percpu.h:11 trace_percpu_alloc_percpu include/trace/events/percpu.h:11 [inline] pcpu_alloc+0x12d7/0x1440 mm/percpu.c:1887 __alloc_percpu_gfp+0x27/0x30 mm/percpu.c:1937 bpf_prog_alloc+0x4f/0x1c0 kernel/bpf/core.c:134 bpf_prog_load+0x84a/0x1bf0 kernel/bpf/syscall.c:2557 __sys_bpf+0x52c/0x7f0 kernel/bpf/syscall.c:4987 __do_sys_bpf kernel/bpf/syscall.c:5091 [inline] __se_sys_bpf kernel/bpf/syscall.c:5089 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5089 x64_sys_call+0x87f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f3ddc57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3ddd3d4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f3ddc736058 RCX: 00007f3ddc57dff9 RDX: 0000000000000094 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007f3ddc5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f3ddc736058 R15: 00007ffda2d20268