rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P30743/1:b..l rcu: (detected by 0, t=10502 jiffies, g=197233, q=3439 ncpus=2) task:syz.0.6840 state:R running task stack:23144 pid:30743 ppid:24528 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x15ae/0x4660 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 32 92 39 09 65 66 8b 05 2a 6c b1 7e 66 85 c0 75 54 bf 01 00 00 00 e8 2b 1d 0a 00 e8 d6 06 3b 00 fb 65 8b 05 f6 6b b1 7e <85> c0 75 05 e8 a5 50 ae ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc9000e5d7980 EFLAGS: 00000282 RAX: 0000000080000000 RBX: 0000000000000200 RCX: 603f6550fecb4d00 RDX: dffffc0000000000 RSI: ffffffff8acacb60 RDI: ffffffff8b1cfa20 RBP: ffffc9000e5d7a10 R08: ffffffff8e8c6b2f R09: 1ffffffff1d18d65 R10: dffffc0000000000 R11: fffffbfff1d18d66 R12: ffffffff88bba1d4 R13: ffffc9000e5d7c58 R14: dffffc0000000000 R15: 1ffff92001cbaf30 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_xdp+0x7ad/0x1140 net/bpf/test_run.c:1328 bpf_prog_test_run+0x31f/0x390 kernel/bpf/syscall.c:4132 __sys_bpf+0x49d/0x890 kernel/bpf/syscall.c:5495 __do_sys_bpf kernel/bpf/syscall.c:5581 [inline] __se_sys_bpf kernel/bpf/syscall.c:5579 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5579 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: 0033:0x7fd3c379de59 RSP: 002b:00007fd3c46e2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fd3c3a25fa0 RCX: 00007fd3c379de59 RDX: 0000000000000050 RSI: 0000200000000600 RDI: 000000000000000a RBP: 00007fd3c3833e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd3c3a26038 R14: 00007fd3c3a25fa0 R15: 00007ffdc74be508