rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10811/1:b..l rcu: (detected by 1, t=10502 jiffies, g=44061, q=2375 ncpus=2) task:syz.0.1276 state:R running task stack:25480 pid:10811 ppid:5773 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1553/0x45a0 kernel/sched/core.c:6700 preempt_schedule_irq+0xbf/0x150 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+0x142/0x1c0 kernel/softirq.c:413 Code: 8a e8 92 1e 32 09 65 66 8b 05 ca 51 b1 7e 66 85 c0 75 54 bf 01 00 00 00 e8 cb 1a 0a 00 e8 b6 20 3b 00 fb 65 8b 05 96 51 b1 7e <85> c0 75 05 e8 15 39 ae ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc9000cc67a20 EFLAGS: 00000282 RAX: 0000000080000000 RBX: 0000000000000200 RCX: 9af239d7d8634200 RDX: dffffc0000000000 RSI: ffffffff8acac900 RDI: ffffffff8b1c82e0 RBP: ffffc9000cc67ab0 R08: ffffffff8e8adeaf R09: 1ffffffff1d15bd5 R10: dffffc0000000000 R11: fffffbfff1d15bd6 R12: ffffffff88b4a694 R13: ffffc9000cc67d00 R14: dffffc0000000000 R15: 1ffff9200198cf44 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+0xad2/0x12b0 net/bpf/test_run.c:1058 bpf_prog_test_run+0x321/0x390 kernel/bpf/syscall.c:4132 __sys_bpf+0x49d/0x890 kernel/bpf/syscall.c:5494 __do_sys_bpf kernel/bpf/syscall.c:5580 [inline] __se_sys_bpf kernel/bpf/syscall.c:5578 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5578 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f480ab9c799 RSP: 002b:00007f480b9ca028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f480ae16090 RCX: 00007f480ab9c799 RDX: 0000000000000050 RSI: 00002000000002c0 RDI: 000000000000000a RBP: 00007f480ac32bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f480ae16128 R14: 00007f480ae16090 R15: 00007ffe8d401d28