rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=12205, q=257 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294955944-4294945444), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g12205 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27496 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7326
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2123
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2325
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 5627 Comm: syz-executor100 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:104 [inline]
RIP: 0010:__local_bh_enable_ip+0xd8/0x130 kernel/softirq.c:457
Code: 8b e8 8c 03 48 0a 65 66 8b 05 9c d0 e4 11 66 85 c0 75 32 bf 01 00 00 00 e8 85 f0 0b 00 e8 50 bc 46 00 fb 65 8b 05 78 d0 e4 11 <85> c0 75 05 e8 3f 7f ab ff 5b 41 5e e9 42 51 88 ff cc 90 0f 0b 90
RSP: 0018:ffffc90004c07808 EFLAGS: 00000206
RAX: 0000000080000000 RBX: 0000000000000200 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e22bfbd RDI: ffffffff8c4bdb80
RBP: ffffc90004c07a80 R08: ffffffff905788f7 R09: 1ffffffff20af11e
R10: dffffc0000000000 R11: fffffbfff20af11f R12: dffffc0000000000
R13: 00000000fffffff2 R14: ffffffff89e5dd61 R15: 0000000000000000
FS:  000055556870f400(0000) GS:ffff888125054000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000074311000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 bpf_test_run+0x3a8/0x830 net/bpf/test_run.c:425
 bpf_prog_test_run_skb+0xe35/0x2230 net/bpf/test_run.c:1225
 bpf_prog_test_run+0x2c5/0x340 kernel/bpf/syscall.c:4859
 __sys_bpf+0xa22/0xd90 kernel/bpf/syscall.c:6436
 __do_sys_bpf kernel/bpf/syscall.c:6537 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6534 [inline]
 __x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6534
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f081fa61f29
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffec8a894e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00002000000000c0 RCX: 00007f081fa61f29
RDX: 0000000000000050 RSI: 0000200000000240 RDI: 000000000000000a
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>