rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (0 ticks this GP) idle=bb7/1/0x4000000000000000 softirq=21260/21260 fqs=0 (detected by 1, t=10502 jiffies, g=31885, q=990) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7432 Comm: syz-executor.1 Not tainted 5.15.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:instrument_atomic_read_write include/linux/instrumented.h:101 [inline] RIP: 0010:atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:511 [inline] RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:82 [inline] RIP: 0010:do_raw_spin_lock+0x130/0x370 kernel/locking/spinlock_debug.c:115 Code: 9d 7e 39 c8 0f 84 1d 01 00 00 4d 89 f5 49 c1 ed 03 41 0f b6 44 15 00 84 c0 48 89 d3 0f 85 9e 01 00 00 c7 44 24 60 00 00 00 00 <4c> 89 e7 be 04 00 00 00 e8 f3 0a 66 00 4c 89 f7 be 04 00 00 00 e8 RSP: 0018:ffffc90000007b40 EFLAGS: 00000097 RAX: 0000000000000004 RBX: dffffc0000000000 RCX: 0000000000007b03 RDX: dffffc0000000000 RSI: 1ffff92000000f70 RDI: ffffffff915f4408 RBP: ffffc90000007c10 R08: dffffc0000000000 R09: fffffbfff1f7f019 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff915f4408 R13: 1ffff92000000f74 R14: ffffc90000007ba0 R15: 1ffffffff22be882 FS: 00007f4c833d56c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32e27000 CR3: 000000001ac23000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline] _raw_spin_lock_irqsave+0xdd/0x120 kernel/locking/spinlock.c:162 debug_object_activate+0x63/0x4e0 lib/debugobjects.c:693 debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline] debug_activate kernel/time/hrtimer.c:475 [inline] enqueue_hrtimer+0x30/0x390 kernel/time/hrtimer.c:1084 __run_hrtimer kernel/time/hrtimer.c:1703 [inline] __hrtimer_run_queues+0x6b6/0xcf0 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:arch_stack_walk+0x5a/0x140 arch/x86/kernel/stacktrace.c:18 Code: 00 00 48 c7 45 c0 00 00 00 00 48 c7 45 b8 00 00 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 <48> c7 45 98 00 00 00 00 48 c7 45 90 00 00 00 00 48 c7 45 88 00 00 RSP: 0018:ffffc90002fb6a40 EFLAGS: 00000282 RAX: 6bc7eb9a58e19200 RBX: ffffc90002fb6b30 RCX: 0000000000000000 RDX: ffff8880201bbb80 RSI: ffffc90002fb6b20 RDI: ffffffff816df610 RBP: ffffc90002fb6ad0 R08: ffffffff81d0d7ad R09: ffffc90002fb6c00 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880201bbb80 R13: ffffffff816df610 R14: ffffc90002fb6b20 R15: 0000000000000000 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:119 __set_page_owner+0x37/0x300 mm/page_owner.c:181 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 __get_free_pages+0x8/0x30 mm/page_alloc.c:5460 kasan_populate_vmalloc_pte+0x2a/0xd0 mm/kasan/shadow.c:266 apply_to_pte_range mm/memory.c:2545 [inline] apply_to_pmd_range mm/memory.c:2589 [inline] apply_to_pud_range mm/memory.c:2625 [inline] apply_to_p4d_range mm/memory.c:2661 [inline] __apply_to_page_range+0x9bf/0xcc0 mm/memory.c:2695 alloc_vmap_area+0x1875/0x19a0 mm/vmalloc.c:1565 __get_vm_area_node+0x16e/0x2f0 mm/vmalloc.c:2423 __vmalloc_node_range+0xe3/0x8c0 mm/vmalloc.c:3019 __vmalloc_node mm/vmalloc.c:3079 [inline] vzalloc+0x75/0x80 mm/vmalloc.c:3149 bpf_check+0x1e8/0x12d00 kernel/bpf/verifier.c:14006 bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4651 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline] __se_sys_bpf kernel/bpf/syscall.c:4753 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4c84e61ee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4c833d50c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f4c84f98f80 RCX: 00007f4c84e61ee9 RDX: 0000000000000090 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007f4c84eae47f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4c84f98f80 R15: 00007fff5369b528 rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g31885 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 rcu: Possible timer handling issue on cpu=0 timer-softirq=12550 rcu: rcu_preempt kthread starved for 10502 jiffies! g31885 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:I stack:27000 pid: 15 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7432 Comm: syz-executor.1 Not tainted 5.15.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:advance_sched+0x25b/0x940 net/sched/sch_taprio.c:733 Code: 89 e7 e8 88 e9 5d f9 49 8b 1c 24 48 8b 44 24 08 48 8d 68 40 48 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 ef e8 65 e9 5d f9 <48> 8b 6d 00 48 89 df 48 89 ee e8 26 1d 14 f9 48 39 eb 0f 84 15 06 RSP: 0018:ffffc90000007cc0 EFLAGS: 00000046 RAX: 1ffff1100b9a6cb8 RBX: 19bbaf1a0c000000 RCX: ffff8880201bbb80 RDX: 0000000000010001 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88805cd365c0 R08: ffffffff886c4058 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888021640890 R13: 1ffff110042c8112 R14: dffffc0000000000 R15: ffff8880778f6328 FS: 00007f4c833d56c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32e27000 CR3: 000000001ac23000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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:arch_stack_walk+0x5a/0x140 arch/x86/kernel/stacktrace.c:18 Code: 00 00 48 c7 45 c0 00 00 00 00 48 c7 45 b8 00 00 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 <48> c7 45 98 00 00 00 00 48 c7 45 90 00 00 00 00 48 c7 45 88 00 00 RSP: 0018:ffffc90002fb6a40 EFLAGS: 00000282 RAX: 6bc7eb9a58e19200 RBX: ffffc90002fb6b30 RCX: 0000000000000000 RDX: ffff8880201bbb80 RSI: ffffc90002fb6b20 RDI: ffffffff816df610 RBP: ffffc90002fb6ad0 R08: ffffffff81d0d7ad R09: ffffc90002fb6c00 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880201bbb80 R13: ffffffff816df610 R14: ffffc90002fb6b20 R15: 0000000000000000 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:119 __set_page_owner+0x37/0x300 mm/page_owner.c:181 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 __get_free_pages+0x8/0x30 mm/page_alloc.c:5460 kasan_populate_vmalloc_pte+0x2a/0xd0 mm/kasan/shadow.c:266 apply_to_pte_range mm/memory.c:2545 [inline] apply_to_pmd_range mm/memory.c:2589 [inline] apply_to_pud_range mm/memory.c:2625 [inline] apply_to_p4d_range mm/memory.c:2661 [inline] __apply_to_page_range+0x9bf/0xcc0 mm/memory.c:2695 alloc_vmap_area+0x1875/0x19a0 mm/vmalloc.c:1565 __get_vm_area_node+0x16e/0x2f0 mm/vmalloc.c:2423 __vmalloc_node_range+0xe3/0x8c0 mm/vmalloc.c:3019 __vmalloc_node mm/vmalloc.c:3079 [inline] vzalloc+0x75/0x80 mm/vmalloc.c:3149 bpf_check+0x1e8/0x12d00 kernel/bpf/verifier.c:14006 bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4651 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline] __se_sys_bpf kernel/bpf/syscall.c:4753 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4c84e61ee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4c833d50c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f4c84f98f80 RCX: 00007f4c84e61ee9 RDX: 0000000000000090 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007f4c84eae47f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4c84f98f80 R15: 00007fff5369b528