rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P23814/1:b..l rcu: (detected by 1, t=10502 jiffies, g=138953, q=2553 ncpus=2) task:syz.1.4716 state:R running task stack:22824 pid:23814 ppid:14705 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6701 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7011 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+0x142/0x1c0 kernel/softirq.c:413 Code: 8a e8 02 04 3d 09 65 66 8b 05 7a db b0 7e 66 85 c0 75 54 bf 01 00 00 00 e8 2b 1d 0a 00 e8 e6 16 3b 00 fb 65 8b 05 46 db b0 7e <85> c0 75 05 e8 35 c0 ad ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc900038e7a00 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000200 RCX: c4c4332313441400 RDX: dffffc0000000000 RSI: ffffffff8acacce0 RDI: ffffffff8b1d35e0 RBP: ffffc900038e7a90 R08: ffffffff8e8c8daf R09: 1ffffffff1d191b5 R10: dffffc0000000000 R11: fffffbfff1d191b6 R12: ffffffff88bf6a24 R13: ffffc900038e7d00 R14: dffffc0000000000 R15: 1ffff9200071cf40 local_bh_enable include/linux/bottom_half.h:33 [inline] bpf_test_run+0x3dd/0x870 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0xdbb/0x18f0 net/bpf/test_run.c:1089 bpf_prog_test_run+0x31f/0x390 kernel/bpf/syscall.c:4132 __sys_bpf+0x49d/0x890 kernel/bpf/syscall.c:5496 __do_sys_bpf kernel/bpf/syscall.c:5582 [inline] __se_sys_bpf kernel/bpf/syscall.c:5580 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5580 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fae2d19e159 RSP: 002b:00007fae2e11f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fae2d425fa0 RCX: 00007fae2d19e159 RDX: 000000000000002c RSI: 0000200000000080 RDI: 000000000000000a RBP: 00007fae2d23503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fae2d426038 R14: 00007fae2d425fa0 R15: 00007fff7cf59de8