rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P12311/3:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=324997, q=531779 ncpus=2)
task:syz.0.27996     state:R  running task     stack:23144 pid:12311 tgid:12309 ppid:5833   task_flags:0x400140 flags:0x00080003
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x40
 irq_work_queue+0xe0/0x140
 rhashtable_insert_slow+0x1d1a/0x2000
 rhtab_map_update_elem+0x1729/0x1e30
 bpf_map_update_value+0x73a/0x910
 generic_map_update_batch+0x6f3/0x9a0
 bpf_map_do_batch+0x391/0x630
 __sys_bpf+0xbe5/0xd90
 __x64_sys_bpf+0xba/0xd0
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9be179de99
RSP: 002b:00007f9be25ba028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f9be1a25fa0 RCX: 00007f9be179de99
RDX: 0000000000000038 RSI: 00002000000003c0 RDI: 000000000000001a
RBP: 00007f9be1833eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9be1a26038 R14: 00007f9be1a25fa0 R15: 00007ffdc2ab3ba8
 </TASK>
