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): P19478/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=217645, q=863621 ncpus=2)
task:udevd           state:R  running task     stack:23328 pid:19478 tgid:19478 ppid:5197   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238
 irqentry_exit+0x599/0x620 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:879 [inline]
RIP: 0010:class_rcu_destructor include/linux/rcupdate.h:1193 [inline]
RIP: 0010:unwind_next_frame+0x1a58/0x23c0 arch/x86/kernel/unwind_orc.c:695
Code: c0 0f 85 a3 02 00 00 c6 03 01 4c 8b 7c 24 50 4c 8b 64 24 20 41 0f b6 04 2c 84 c0 0f 85 35 02 00 00 41 c7 06 00 00 00 00 31 db <e8> b3 9f 38 0a 85 c0 74 3a e8 ea 29 34 00 84 c0 75 31 e8 a1 9f 38
RSP: 0018:ffffc9000c627258 EFLAGS: 00000216
RAX: ffffc9000c628000 RBX: ffffffff90b41f01 RCX: ffffc9000c6276d8
RDX: ffffc9000c627301 RSI: dffffc0000000000 RDI: ffffc9000c627330
RBP: dffffc0000000000 R08: ffffc9000c6276c0 R09: 0000000000000000
R10: ffffc9000c627378 R11: fffff520018c4e71 R12: ffffc9000c6276d0
R13: ffffc9000c620000 R14: ffffc9000c627328 R15: ffffffff81767e95
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4538 [inline]
 slab_alloc_node mm/slub.c:4866 [inline]
 kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4885
 __d_alloc+0x37/0x6f0 fs/dcache.c:1740
 d_alloc_parallel+0xe6/0x1610 fs/dcache.c:2604
 lookup_open fs/namei.c:4404 [inline]
 open_last_lookups fs/namei.c:4589 [inline]
 path_openat+0xca8/0x3860 fs/namei.c:4833
 do_file_open+0x23e/0x4a0 fs/namei.c:4865
 do_sys_openat2+0x113/0x200 fs/open.c:1366
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1383
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4802aa7407
RSP: 002b:00007ffd76952110 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4803276880 RCX: 00007f4802aa7407
RDX: 0000000000080000 RSI: 00007ffd76952280 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055e7ab6e97f5
R13: 000055e7ab6e97f5 R14: 0000000000000001 R15: 000055e7ab704140
 </TASK>