sched: DL replenish lagged too much
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5592/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=44513, q=1289 ncpus=1)
task:syz-executor    state:R  running task     stack:21856 pid:5592  tgid:5592  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 __schedule+0x16e2/0x53f0
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x30
 _raw_read_unlock+0x3f/0x50
 zap_pid_ns_processes+0x2b5/0x5f0
 do_exit+0x2001/0x2460
 do_group_exit+0x22d/0x2f0
 get_signal+0x121b/0x12c0
 arch_do_signal_or_restart+0xbb/0x810
 exit_to_user_mode_loop+0xa3/0x5e0
 do_syscall_64+0x357/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f457195e84e
RSP: 002b:00007ffe342261e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: 0000000000000000 RBX: 0000555575eb0500 RCX: 00007f457195e84e
RDX: 00007ffe34226240 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe342262ac R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000001da
R13: 0000000000000060 R14: 0000000000039f89 R15: 00007ffe34226300
 </TASK>
