rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7529/1:b..l rcu: (detected by 1, t=10502 jiffies, g=22033, q=2037 ncpus=2) task:syz.1.562 state:R running task stack:25832 pid:7529 ppid:5787 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0x14d2/0x44d0 kernel/sched/core.c:6699 preempt_schedule_irq+0xb5/0x140 kernel/sched/core.c:7009 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 50 1d 09 65 66 8b 05 86 24 b2 7e 66 85 c0 75 54 bf 01 00 00 00 e8 67 db 09 00 e8 32 5f 3a 00 fb 65 8b 05 52 24 b2 7e <85> c0 75 05 e8 71 08 af ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc900045efa20 EFLAGS: 00000282 RAX: 0000000080000000 RBX: 0000000000000200 RCX: 9c5bb12a4811c800 RDX: dffffc0000000000 RSI: ffffffff8aaabce0 RDI: ffffffff8afc6b00 RBP: ffffc900045efab0 R08: ffffffff8e4a8d6f R09: 1ffffffff1c951ad R10: dffffc0000000000 R11: fffffbfff1c951ae R12: ffffffff88a54ffc R13: ffffc900045efd00 R14: dffffc0000000000 R15: 1ffff920008bdf44 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:4129 __sys_bpf+0x440/0x800 kernel/bpf/syscall.c:5491 __do_sys_bpf kernel/bpf/syscall.c:5577 [inline] __se_sys_bpf kernel/bpf/syscall.c:5575 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5575 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: 0033:0x7f151ed8f6c9 RSP: 002b:00007f151fcd8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f151efe6090 RCX: 00007f151ed8f6c9 RDX: 0000000000000050 RSI: 0000200000000380 RDI: 000000000000000a RBP: 00007f151ee11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f151efe6128 R14: 00007f151efe6090 R15: 00007fffa59233a8