rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6718/1:b..l rcu: (detected by 0, t=10502 jiffies, g=11701, q=6870 ncpus=2) task:syz.2.329 state:R running task stack:23480 pid:6718 tgid:6716 ppid:5851 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline] RIP: 0010:__local_bh_enable_ip+0x170/0x200 kernel/softirq.c:389 Code: 8c e8 e4 b1 73 0a 65 66 8b 05 f4 38 ac 7e 66 85 c0 75 5d bf 01 00 00 00 e8 8d bb 0b 00 e8 68 22 45 00 fb 65 8b 05 b8 38 ac 7e <85> c0 75 05 e8 77 18 a9 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c RSP: 0018:ffffc9001e447840 EFLAGS: 00000286 RAX: 0000000080000000 RBX: 1ffff92003c88f0c RCX: ffffffff9a3fb903 RDX: dffffc0000000000 RSI: ffffffff8c0ad2a0 RDI: ffffffff8c612b60 RBP: ffffc9001e4478f0 R08: ffffffff901de177 R09: 1ffffffff203bc2e R10: dffffc0000000000 R11: fffffbfff203bc2f R12: dffffc0000000000 R13: 1ffff92003c88f10 R14: ffffc9001e447880 R15: 0000000000000200 local_bh_enable include/linux/bottom_half.h:33 [inline] bpf_test_run+0x56b/0xa90 net/bpf/test_run.c:437 bpf_prog_test_run_skb+0xc97/0x1820 net/bpf/test_run.c:1095 bpf_prog_test_run+0x2e6/0x360 kernel/bpf/syscall.c:4266 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5671 __do_sys_bpf kernel/bpf/syscall.c:5760 [inline] __se_sys_bpf kernel/bpf/syscall.c:5758 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5758 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5e7f17e819 RSP: 002b:00007f5e80003038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5e7f335fa0 RCX: 00007f5e7f17e819 RDX: 0000000000000028 RSI: 00000000200001c0 RDI: 000000000000000a RBP: 00007f5e7f1f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5e7f335fa0 R15: 00007ffce2721cf8