rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7158/1:b.el rcu: (detected by 0, t=10503 jiffies, g=19321, q=1639 ncpus=2) task:syz.2.467 state:R running task stack:25832 pid:7158 ppid:5791 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x14d2/0x44d0 kernel/sched/core.c:6700 preempt_schedule_irq+0xb5/0x140 kernel/sched/core.c:7010 irqentry_exit+0x67/0x70 kernel/entry/common.c:438 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:104 [inline] RIP: 0010:__local_bh_enable_ip+0x136/0x1c0 kernel/softirq.c:413 Code: 8a e8 9e 9d 1b 09 65 66 8b 05 e6 28 b2 7e 66 85 c0 75 54 bf 01 00 00 00 e8 b7 e2 09 00 e8 62 67 3a 00 fb 65 8b 05 b2 28 b2 7e <85> c0 75 05 e8 91 0a af ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc90018affa20 EFLAGS: 00000282 RAX: 0000000080000000 RBX: 0000000000000200 RCX: 5224d32e003b4e00 RDX: dffffc0000000000 RSI: ffffffff8aaaba40 RDI: ffffffff8afc6780 RBP: ffffc90018affab0 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d R10: dffffc0000000000 R11: fffffbfff1c9509e R12: ffffffff88a3e98c R13: ffffc90018affd00 R14: dffffc0000000000 R15: 1ffff9200315ff44 local_bh_enable include/linux/bottom_half.h:33 [inline] bpf_test_run+0x3c5/0x810 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0xa67/0x11c0 net/bpf/test_run.c:1050 bpf_prog_test_run+0x321/0x390 kernel/bpf/syscall.c:4123 __sys_bpf+0x440/0x800 kernel/bpf/syscall.c:5485 __do_sys_bpf kernel/bpf/syscall.c:5571 [inline] __se_sys_bpf kernel/bpf/syscall.c:5569 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5569 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe9d0f8ebe9 RSP: 002b:00007fe9d1de3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fe9d11b5fa0 RCX: 00007fe9d0f8ebe9 RDX: 0000000000000050 RSI: 00002000000002c0 RDI: 000000000000000a RBP: 00007fe9d1011e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe9d11b6038 R14: 00007fe9d11b5fa0 R15: 00007ffdf00a1a88